# ========
# captured on: Tue Jan 29 15:37:00 2013
# hostname : phenom
# os release : 3.8.0-rc4+
# perf version : 3.8.rc5.g6a61671
# arch : x86_64
# nrcpus online : 4
# nrcpus avail : 4
# cpudesc : AMD Phenom(tm) 9600 Quad-Core Processor
# cpuid : AuthenticAMD,16,2,2
# total memory : 3412972 kB
# cmdline : /home/fweisbec/linux-2.6-tip/tools/perf/perf record -m 1024 -g -e cputime:* /home/fweisbec/kernelspin 10 
# event : name = cputime:account_system, type = 2, config = 0xfc, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 1, precise_ip = 0, id = { 5, 6, 7, 8 }
# event : name = cputime:account_user, type = 2, config = 0xfd, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 1, precise_ip = 0, id = { 9, 10, 11, 12 }
# HEADER_CPU_TOPOLOGY info available, use -I to display
# HEADER_NUMA_TOPOLOGY info available, use -I to display
# pmu mappings: cpu = 4, software = 1, tracepoint = 2, ibs_fetch = 6, ibs_op = 7, breakpoint = 5
# ========
#
# Samples: 1M of event 'cputime:account_system'
# Event count (approx.): 4075440452
#
# Overhead     Command      Shared Object                         Symbol
# ........  ..........  .................  .............................
#
   100.00%  kernelspin  [kernel.kallsyms]  [k] perf_trace_account_system
            |
            --- perf_trace_account_system
                account_system_time
                __vtime_account_system
               |          
               |--96.57%-- vtime_user_enter
               |          user_enter
               |          |          
               |          |--99.99%-- syscall_trace_leave
               |          |          int_check_syscall_exit_work
               |          |          |          
               |          |          |--99.99%-- brk
               |          |          |          |          
               |          |          |           --100.00%-- __libc_start_main
               |          |           --0.01%-- [...]
               |           --0.01%-- [...]
               |          
               |--2.83%-- vtime_account_irq_exit
               |          |          
               |          |--59.92%-- __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          |          
               |          |          |--82.63%-- do_IRQ
               |          |          |          common_interrupt
               |          |          |          |          
               |          |          |          |--33.63%-- syscall_trace_leave
               |          |          |          |          int_check_syscall_exit_work
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--32.47%-- syscall_trace_enter
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--5.86%-- brk
               |          |          |          |          |          
               |          |          |          |           --100.00%-- __libc_start_main
               |          |          |          |          
               |          |          |          |--5.14%-- do_brk
               |          |          |          |          sys_brk
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--3.55%-- sys_brk
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--2.97%-- perf_event_mmap
               |          |          |          |          do_brk
               |          |          |          |          sys_brk
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--2.28%-- do_munmap
               |          |          |          |          sys_brk
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--2.05%-- trace_preempt_on
               |          |          |          |          sub_preempt_count
               |          |          |          |          |          
               |          |          |          |          |--76.79%-- perf_event_mmap
               |          |          |          |          |          do_brk
               |          |          |          |          |          sys_brk
               |          |          |          |          |          tracesys
               |          |          |          |          |          brk
               |          |          |          |          |          __libc_start_main
               |          |          |          |          |          
               |          |          |          |          |--18.17%-- __percpu_counter_add
               |          |          |          |          |          __vm_enough_memory
               |          |          |          |          |          selinux_vm_enough_memory
               |          |          |          |          |          security_vm_enough_memory_mm
               |          |          |          |          |          do_brk
               |          |          |          |          |          sys_brk
               |          |          |          |          |          tracesys
               |          |          |          |          |          brk
               |          |          |          |          |          __libc_start_main
               |          |          |          |          |          
               |          |          |          |           --5.04%-- lru_add_drain
               |          |          |          |                     unmap_region
               |          |          |          |                     do_munmap
               |          |          |          |                     sys_brk
               |          |          |          |                     tracesys
               |          |          |          |                     brk
               |          |          |          |                     __libc_start_main
               |          |          |          |          
               |          |          |          |--2.04%-- sub_preempt_count
               |          |          |          |          |          
               |          |          |          |          |--61.80%-- perf_event_mmap
               |          |          |          |          |          do_brk
               |          |          |          |          |          sys_brk
               |          |          |          |          |          tracesys
               |          |          |          |          |          brk
               |          |          |          |          |          __libc_start_main
               |          |          |          |          |          
               |          |          |          |          |--19.20%-- __percpu_counter_add
               |          |          |          |          |          do_munmap
               |          |          |          |          |          sys_brk
               |          |          |          |          |          tracesys
               |          |          |          |          |          brk
               |          |          |          |          |          __libc_start_main
               |          |          |          |          |          
               |          |          |          |           --19.00%-- lru_add_drain
               |          |          |          |                     unmap_region
               |          |          |          |                     do_munmap
               |          |          |          |                     sys_brk
               |          |          |          |                     tracesys
               |          |          |          |                     brk
               |          |          |          |                     __libc_start_main
               |          |          |          |          
               |          |          |          |--1.74%-- add_preempt_count
               |          |          |          |          |          
               |          |          |          |          |--49.17%-- __percpu_counter_add
               |          |          |          |          |          |          
               |          |          |          |          |          |--52.53%-- do_munmap
               |          |          |          |          |          |          sys_brk
               |          |          |          |          |          |          tracesys
               |          |          |          |          |          |          brk
               |          |          |          |          |          |          __libc_start_main
               |          |          |          |          |          |          
               |          |          |          |          |           --47.47%-- __vm_enough_memory
               |          |          |          |          |                     selinux_vm_enough_memory
               |          |          |          |          |                     security_vm_enough_memory_mm
               |          |          |          |          |                     do_brk
               |          |          |          |          |                     sys_brk
               |          |          |          |          |                     tracesys
               |          |          |          |          |                     brk
               |          |          |          |          |                     __libc_start_main
               |          |          |          |          |          
               |          |          |          |          |--41.01%-- perf_event_mmap
               |          |          |          |          |          do_brk
               |          |          |          |          |          sys_brk
               |          |          |          |          |          tracesys
               |          |          |          |          |          brk
               |          |          |          |          |          __libc_start_main
               |          |          |          |          |          
               |          |          |          |           --9.82%-- lru_add_drain
               |          |          |          |                     unmap_region
               |          |          |          |                     do_munmap
               |          |          |          |                     sys_brk
               |          |          |          |                     tracesys
               |          |          |          |                     brk
               |          |          |          |                     __libc_start_main
               |          |          |          |          
               |          |          |          |--1.54%-- unmap_vmas
               |          |          |          |          unmap_region
               |          |          |          |          do_munmap
               |          |          |          |          sys_brk
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--1.11%-- tlb_gather_mmu
               |          |          |          |          unmap_region
               |          |          |          |          do_munmap
               |          |          |          |          sys_brk
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--0.78%-- main
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--0.72%-- free_pgtables
               |          |          |          |          unmap_region
               |          |          |          |          do_munmap
               |          |          |          |          sys_brk
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--0.67%-- int_check_syscall_exit_work
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |          |          
               |          |          |          |--0.63%-- __rb_insert_augmented
               |          |          |          |          __vma_link_rb
               |          |          |          |          vma_link
               |          |          |          |          do_brk
               |          |          |          |          sys_brk
               |          |          |          |          tracesys
               |          |          |          |          brk
               |          |          |          |          __libc_start_main
               |          |          |           --2.84%-- [...]
               |          |          |          
               |          |           --17.37%-- smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     |          
               |          |                     |--36.61%-- syscall_trace_leave
               |          |                     |          int_check_syscall_exit_work
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--31.23%-- syscall_trace_enter
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--5.35%-- brk
               |          |                     |          |          
               |          |                     |           --100.00%-- __libc_start_main
               |          |                     |          
               |          |                     |--5.18%-- do_brk
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--3.61%-- perf_event_mmap
               |          |                     |          do_brk
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--2.23%-- sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--1.46%-- sub_preempt_count
               |          |                     |          |          
               |          |                     |          |--85.10%-- perf_event_mmap
               |          |                     |          |          do_brk
               |          |                     |          |          sys_brk
               |          |                     |          |          tracesys
               |          |                     |          |          brk
               |          |                     |          |          __libc_start_main
               |          |                     |          |          
               |          |                     |          |--7.84%-- lru_add_drain
               |          |                     |          |          unmap_region
               |          |                     |          |          do_munmap
               |          |                     |          |          sys_brk
               |          |                     |          |          tracesys
               |          |                     |          |          brk
               |          |                     |          |          __libc_start_main
               |          |                     |          |          
               |          |                     |           --7.06%-- __percpu_counter_add
               |          |                     |                     |          
               |          |                     |                     |--57.15%-- do_munmap
               |          |                     |                     |          sys_brk
               |          |                     |                     |          tracesys
               |          |                     |                     |          brk
               |          |                     |                     |          __libc_start_main
               |          |                     |                     |          
               |          |                     |                      --42.85%-- __vm_enough_memory
               |          |                     |                                selinux_vm_enough_memory
               |          |                     |                                security_vm_enough_memory_mm
               |          |                     |                                do_brk
               |          |                     |                                sys_brk
               |          |                     |                                tracesys
               |          |                     |                                brk
               |          |                     |                                __libc_start_main
               |          |                     |          
               |          |                     |--1.39%-- do_munmap
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--1.19%-- add_preempt_count
               |          |                     |          |          
               |          |                     |          |--78.86%-- perf_event_mmap
               |          |                     |          |          do_brk
               |          |                     |          |          sys_brk
               |          |                     |          |          tracesys
               |          |                     |          |          brk
               |          |                     |          |          __libc_start_main
               |          |                     |          |          
               |          |                     |          |--15.03%-- __percpu_counter_add
               |          |                     |          |          |          
               |          |                     |          |          |--59.56%-- __vm_enough_memory
               |          |                     |          |          |          selinux_vm_enough_memory
               |          |                     |          |          |          security_vm_enough_memory_mm
               |          |                     |          |          |          do_brk
               |          |                     |          |          |          sys_brk
               |          |                     |          |          |          tracesys
               |          |                     |          |          |          brk
               |          |                     |          |          |          __libc_start_main
               |          |                     |          |          |          
               |          |                     |          |           --40.44%-- do_munmap
               |          |                     |          |                     sys_brk
               |          |                     |          |                     tracesys
               |          |                     |          |                     brk
               |          |                     |          |                     __libc_start_main
               |          |                     |          |          
               |          |                     |           --6.11%-- lru_add_drain
               |          |                     |                     unmap_region
               |          |                     |                     do_munmap
               |          |                     |                     sys_brk
               |          |                     |                     tracesys
               |          |                     |                     brk
               |          |                     |                     __libc_start_main
               |          |                     |          
               |          |                     |--0.96%-- trace_preempt_on
               |          |                     |          sub_preempt_count
               |          |                     |          |          
               |          |                     |          |--73.30%-- perf_event_mmap
               |          |                     |          |          do_brk
               |          |                     |          |          sys_brk
               |          |                     |          |          tracesys
               |          |                     |          |          brk
               |          |                     |          |          __libc_start_main
               |          |                     |          |          
               |          |                     |          |--17.71%-- __percpu_counter_add
               |          |                     |          |          |          
               |          |                     |          |          |--65.21%-- __vm_enough_memory
               |          |                     |          |          |          selinux_vm_enough_memory
               |          |                     |          |          |          security_vm_enough_memory_mm
               |          |                     |          |          |          do_brk
               |          |                     |          |          |          sys_brk
               |          |                     |          |          |          tracesys
               |          |                     |          |          |          brk
               |          |                     |          |          |          __libc_start_main
               |          |                     |          |          |          
               |          |                     |          |           --34.79%-- do_munmap
               |          |                     |          |                     sys_brk
               |          |                     |          |                     tracesys
               |          |                     |          |                     brk
               |          |                     |          |                     __libc_start_main
               |          |                     |          |          
               |          |                     |           --8.99%-- lru_add_drain
               |          |                     |                     unmap_region
               |          |                     |                     do_munmap
               |          |                     |                     sys_brk
               |          |                     |                     tracesys
               |          |                     |                     brk
               |          |                     |                     __libc_start_main
               |          |                     |          
               |          |                     |--0.94%-- __vma_link_rb
               |          |                     |          vma_link
               |          |                     |          do_brk
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.91%-- remove_vma
               |          |                     |          do_munmap
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.89%-- tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.83%-- unmap_vmas
               |          |                     |          unmap_region
               |          |                     |          do_munmap
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.68%-- lru_add_drain
               |          |                     |          unmap_region
               |          |                     |          do_munmap
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.68%-- free_pgtables
               |          |                     |          unmap_region
               |          |                     |          do_munmap
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.64%-- unmap_region
               |          |                     |          do_munmap
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.60%-- __rb_insert_augmented
               |          |                     |          __vma_link_rb
               |          |                     |          vma_link
               |          |                     |          do_brk
               |          |                     |          sys_brk
               |          |                     |          tracesys
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.59%-- main
               |          |                     |          __libc_start_main
               |          |                     |          
               |          |                     |--0.57%-- int_check_syscall_exit_work
               |          |                     |          brk
               |          |                     |          __libc_start_main
               |          |                      --3.46%-- [...]
               |          |          
               |           --40.08%-- irq_exit
               |                     |          
               |                     |--75.83%-- smp_apic_timer_interrupt
               |                     |          apic_timer_interrupt
               |                     |          |          
               |                     |          |--35.59%-- syscall_trace_leave
               |                     |          |          int_check_syscall_exit_work
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--30.69%-- syscall_trace_enter
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--5.42%-- brk
               |                     |          |          |          
               |                     |          |           --100.00%-- __libc_start_main
               |                     |          |          
               |                     |          |--5.02%-- do_brk
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--3.68%-- perf_event_mmap
               |                     |          |          do_brk
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--2.19%-- sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--1.40%-- do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--1.39%-- sub_preempt_count
               |                     |          |          |          
               |                     |          |          |--84.61%-- perf_event_mmap
               |                     |          |          |          do_brk
               |                     |          |          |          sys_brk
               |                     |          |          |          tracesys
               |                     |          |          |          brk
               |                     |          |          |          __libc_start_main
               |                     |          |          |          
               |                     |          |          |--7.96%-- __percpu_counter_add
               |                     |          |          |          |          
               |                     |          |          |          |--58.64%-- do_munmap
               |                     |          |          |          |          sys_brk
               |                     |          |          |          |          tracesys
               |                     |          |          |          |          brk
               |                     |          |          |          |          __libc_start_main
               |                     |          |          |          |          
               |                     |          |          |           --41.36%-- __vm_enough_memory
               |                     |          |          |                     selinux_vm_enough_memory
               |                     |          |          |                     security_vm_enough_memory_mm
               |                     |          |          |                     do_brk
               |                     |          |          |                     sys_brk
               |                     |          |          |                     tracesys
               |                     |          |          |                     brk
               |                     |          |          |                     __libc_start_main
               |                     |          |          |          
               |                     |          |           --7.44%-- lru_add_drain
               |                     |          |                     unmap_region
               |                     |          |                     do_munmap
               |                     |          |                     sys_brk
               |                     |          |                     tracesys
               |                     |          |                     brk
               |                     |          |                     __libc_start_main
               |                     |          |          
               |                     |          |--1.23%-- add_preempt_count
               |                     |          |          |          
               |                     |          |          |--78.91%-- perf_event_mmap
               |                     |          |          |          do_brk
               |                     |          |          |          sys_brk
               |                     |          |          |          tracesys
               |                     |          |          |          brk
               |                     |          |          |          __libc_start_main
               |                     |          |          |          
               |                     |          |          |--14.93%-- __percpu_counter_add
               |                     |          |          |          |          
               |                     |          |          |          |--59.34%-- __vm_enough_memory
               |                     |          |          |          |          selinux_vm_enough_memory
               |                     |          |          |          |          security_vm_enough_memory_mm
               |                     |          |          |          |          do_brk
               |                     |          |          |          |          sys_brk
               |                     |          |          |          |          tracesys
               |                     |          |          |          |          brk
               |                     |          |          |          |          __libc_start_main
               |                     |          |          |          |          
               |                     |          |          |           --40.66%-- do_munmap
               |                     |          |          |                     sys_brk
               |                     |          |          |                     tracesys
               |                     |          |          |                     brk
               |                     |          |          |                     __libc_start_main
               |                     |          |          |          
               |                     |          |           --6.16%-- lru_add_drain
               |                     |          |                     unmap_region
               |                     |          |                     do_munmap
               |                     |          |                     sys_brk
               |                     |          |                     tracesys
               |                     |          |                     brk
               |                     |          |                     __libc_start_main
               |                     |          |          
               |                     |          |--0.98%-- __vma_link_rb
               |                     |          |          vma_link
               |                     |          |          do_brk
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.97%-- trace_preempt_on
               |                     |          |          sub_preempt_count
               |                     |          |          |          
               |                     |          |          |--72.31%-- perf_event_mmap
               |                     |          |          |          do_brk
               |                     |          |          |          sys_brk
               |                     |          |          |          tracesys
               |                     |          |          |          brk
               |                     |          |          |          __libc_start_main
               |                     |          |          |          
               |                     |          |          |--18.23%-- __percpu_counter_add
               |                     |          |          |          |          
               |                     |          |          |          |--61.36%-- __vm_enough_memory
               |                     |          |          |          |          selinux_vm_enough_memory
               |                     |          |          |          |          security_vm_enough_memory_mm
               |                     |          |          |          |          do_brk
               |                     |          |          |          |          sys_brk
               |                     |          |          |          |          tracesys
               |                     |          |          |          |          brk
               |                     |          |          |          |          __libc_start_main
               |                     |          |          |          |          
               |                     |          |          |           --38.64%-- do_munmap
               |                     |          |          |                     sys_brk
               |                     |          |          |                     tracesys
               |                     |          |          |                     brk
               |                     |          |          |                     __libc_start_main
               |                     |          |          |          
               |                     |          |           --9.46%-- lru_add_drain
               |                     |          |                     unmap_region
               |                     |          |                     do_munmap
               |                     |          |                     sys_brk
               |                     |          |                     tracesys
               |                     |          |                     brk
               |                     |          |                     __libc_start_main
               |                     |          |          
               |                     |          |--0.97%-- remove_vma
               |                     |          |          do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.91%-- tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.85%-- unmap_vmas
               |                     |          |          unmap_region
               |                     |          |          do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.65%-- unmap_region
               |                     |          |          do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.63%-- main
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.61%-- int_check_syscall_exit_work
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.60%-- free_pgtables
               |                     |          |          unmap_region
               |                     |          |          do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.56%-- lru_add_drain
               |                     |          |          unmap_region
               |                     |          |          do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |           --5.68%-- [...]
               |                     |          
               |                     |--19.82%-- do_IRQ
               |                     |          common_interrupt
               |                     |          |          
               |                     |          |--32.94%-- syscall_trace_enter
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--32.22%-- syscall_trace_leave
               |                     |          |          int_check_syscall_exit_work
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--6.40%-- brk
               |                     |          |          |          
               |                     |          |           --100.00%-- __libc_start_main
               |                     |          |          
               |                     |          |--4.84%-- do_brk
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--3.58%-- perf_event_mmap
               |                     |          |          do_brk
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--3.22%-- sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--2.90%-- do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--2.10%-- sub_preempt_count
               |                     |          |          |          
               |                     |          |          |--66.77%-- perf_event_mmap
               |                     |          |          |          do_brk
               |                     |          |          |          sys_brk
               |                     |          |          |          tracesys
               |                     |          |          |          brk
               |                     |          |          |          __libc_start_main
               |                     |          |          |          
               |                     |          |          |--16.77%-- lru_add_drain
               |                     |          |          |          unmap_region
               |                     |          |          |          do_munmap
               |                     |          |          |          sys_brk
               |                     |          |          |          tracesys
               |                     |          |          |          brk
               |                     |          |          |          __libc_start_main
               |                     |          |          |          
               |                     |          |           --16.45%-- __percpu_counter_add
               |                     |          |                     do_munmap
               |                     |          |                     sys_brk
               |                     |          |                     tracesys
               |                     |          |                     brk
               |                     |          |                     __libc_start_main
               |                     |          |          
               |                     |          |--1.94%-- trace_preempt_on
               |                     |          |          sub_preempt_count
               |                     |          |          |          
               |                     |          |          |--67.07%-- perf_event_mmap
               |                     |          |          |          do_brk
               |                     |          |          |          sys_brk
               |                     |          |          |          tracesys
               |                     |          |          |          brk
               |                     |          |          |          __libc_start_main
               |                     |          |          |          
               |                     |          |          |--16.60%-- lru_add_drain
               |                     |          |          |          unmap_region
               |                     |          |          |          do_munmap
               |                     |          |          |          sys_brk
               |                     |          |          |          tracesys
               |                     |          |          |          brk
               |                     |          |          |          __libc_start_main
               |                     |          |          |          
               |                     |          |           --16.33%-- __percpu_counter_add
               |                     |          |                     __vm_enough_memory
               |                     |          |                     selinux_vm_enough_memory
               |                     |          |                     security_vm_enough_memory_mm
               |                     |          |                     do_brk
               |                     |          |                     sys_brk
               |                     |          |                     tracesys
               |                     |          |                     brk
               |                     |          |                     __libc_start_main
               |                     |          |          
               |                     |          |--1.75%-- add_preempt_count
               |                     |          |          |          
               |                     |          |          |--44.68%-- __percpu_counter_add
               |                     |          |          |          |          
               |                     |          |          |          |--53.01%-- do_munmap
               |                     |          |          |          |          sys_brk
               |                     |          |          |          |          tracesys
               |                     |          |          |          |          brk
               |                     |          |          |          |          __libc_start_main
               |                     |          |          |          |          
               |                     |          |          |           --46.99%-- __vm_enough_memory
               |                     |          |          |                     selinux_vm_enough_memory
               |                     |          |          |                     security_vm_enough_memory_mm
               |                     |          |          |                     do_brk
               |                     |          |          |                     sys_brk
               |                     |          |          |                     tracesys
               |                     |          |          |                     brk
               |                     |          |          |                     __libc_start_main
               |                     |          |          |          
               |                     |          |          |--42.85%-- perf_event_mmap
               |                     |          |          |          do_brk
               |                     |          |          |          sys_brk
               |                     |          |          |          tracesys
               |                     |          |          |          brk
               |                     |          |          |          __libc_start_main
               |                     |          |          |          
               |                     |          |           --12.47%-- lru_add_drain
               |                     |          |                     unmap_region
               |                     |          |                     do_munmap
               |                     |          |                     sys_brk
               |                     |          |                     tracesys
               |                     |          |                     brk
               |                     |          |                     __libc_start_main
               |                     |          |          
               |                     |          |--1.74%-- unmap_vmas
               |                     |          |          unmap_region
               |                     |          |          do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.85%-- tlb_gather_mmu
               |                     |          |          unmap_region
               |                     |          |          do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.73%-- main
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.65%-- free_pgtables
               |                     |          |          unmap_region
               |                     |          |          do_munmap
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.64%-- __rb_insert_augmented
               |                     |          |          __vma_link_rb
               |                     |          |          vma_link
               |                     |          |          do_brk
               |                     |          |          sys_brk
               |                     |          |          tracesys
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |          |          
               |                     |          |--0.56%-- int_check_syscall_exit_work
               |                     |          |          brk
               |                     |          |          __libc_start_main
               |                     |           --2.92%-- [...]
               |                     |          
               |                      --4.35%-- smp_irq_work_interrupt
               |                                irq_work_interrupt
               |                                |          
               |                                |--58.20%-- syscall_trace_leave
               |                                |          int_check_syscall_exit_work
               |                                |          brk
               |                                |          __libc_start_main
               |                                |          
               |                                |--40.12%-- syscall_trace_enter
               |                                |          tracesys
               |                                |          brk
               |                                |          __libc_start_main
               |                                |          
               |                                |--1.17%-- call_softirq
               |                                |          do_softirq
               |                                |          irq_exit
               |                                |          smp_apic_timer_interrupt
               |                                |          apic_timer_interrupt
               |                                |          |          
               |                                |          |--50.98%-- syscall_trace_leave
               |                                |          |          int_check_syscall_exit_work
               |                                |          |          brk
               |                                |          |          __libc_start_main
               |                                |          |          
               |                                |           --49.02%-- syscall_trace_enter
               |                                |                     tracesys
               |                                |                     brk
               |                                |                     __libc_start_main
               |                                |          
               |                                 --0.51%-- __percpu_counter_add
               |                                           do_munmap
               |                                           sys_brk
               |                                           tracesys
               |                                           brk
               |                                           __libc_start_main
               |          
                --0.60%-- vtime_account_system
                          vtime_account_irq_enter
                          |          
                          |--72.11%-- irq_enter
                          |          |          
                          |          |--95.14%-- smp_apic_timer_interrupt
                          |          |          apic_timer_interrupt
                          |          |          |          
                          |          |          |--26.69%-- ata_scsi_queuecmd
                          |          |          |          scsi_dispatch_cmd
                          |          |          |          scsi_request_fn
                          |          |          |          __blk_run_queue_uncond
                          |          |          |          __blk_run_queue
                          |          |          |          blk_run_queue
                          |          |          |          scsi_run_queue
                          |          |          |          scsi_next_command
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          |          
                          |          |          |          |--34.02%-- syscall_trace_enter
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--29.00%-- syscall_trace_leave
                          |          |          |          |          int_check_syscall_exit_work
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--9.53%-- do_munmap
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--4.88%-- tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--4.82%-- unmap_vmas
                          |          |          |          |          unmap_region
                          |          |          |          |          do_munmap
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--4.80%-- do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--4.69%-- perf_event_mmap
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--4.63%-- brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |           --3.63%-- event_filter_match
                          |          |          |                     perf_event_mmap_ctx
                          |          |          |                     perf_event_mmap
                          |          |          |                     do_brk
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--19.60%-- syscall_trace_enter
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--8.50%-- scsi_request_fn
                          |          |          |          __blk_run_queue_uncond
                          |          |          |          __blk_run_queue
                          |          |          |          blk_run_queue
                          |          |          |          scsi_run_queue
                          |          |          |          scsi_next_command
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          |          
                          |          |          |          |--32.12%-- syscall_trace_enter
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--29.80%-- syscall_trace_leave
                          |          |          |          |          int_check_syscall_exit_work
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--23.61%-- brk
                          |          |          |          |          |          
                          |          |          |          |           --100.00%-- __libc_start_main
                          |          |          |          |          
                          |          |          |           --14.48%-- sub_preempt_count
                          |          |          |                     perf_event_mmap
                          |          |          |                     do_brk
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--5.26%-- test_clear_page_writeback
                          |          |          |          end_page_writeback
                          |          |          |          put_io_page
                          |          |          |          ext4_end_bio
                          |          |          |          bio_endio
                          |          |          |          req_bio_endio
                          |          |          |          blk_update_request
                          |          |          |          blk_update_bidi_request
                          |          |          |          blk_end_bidi_request
                          |          |          |          blk_end_request
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          |          
                          |          |          |          |--37.86%-- syscall_trace_enter
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--19.72%-- syscall_trace_leave
                          |          |          |          |          int_check_syscall_exit_work
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--11.38%-- brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--9.39%-- do_munmap
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--8.08%-- add_preempt_count
                          |          |          |          |          lru_add_drain
                          |          |          |          |          unmap_region
                          |          |          |          |          do_munmap
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--5.58%-- __rb_insert_augmented
                          |          |          |          |          __vma_link_rb
                          |          |          |          |          vma_link
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--5.42%-- unmap_vmas
                          |          |          |          |          unmap_region
                          |          |          |          |          do_munmap
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |           --2.58%-- perf_event_mmap
                          |          |          |                     do_brk
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--4.65%-- load_elf_binary
                          |          |          |          search_binary_handler
                          |          |          |          do_execve_common
                          |          |          |          do_execve
                          |          |          |          sys_execve
                          |          |          |          stub_execve
                          |          |          |          execve
                          |          |          |          
                          |          |          |--4.52%-- do_brk
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--3.78%-- perf_event_mmap
                          |          |          |          do_brk
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--2.38%-- end_page_writeback
                          |          |          |          put_io_page
                          |          |          |          ext4_end_bio
                          |          |          |          bio_endio
                          |          |          |          req_bio_endio
                          |          |          |          blk_update_request
                          |          |          |          blk_update_bidi_request
                          |          |          |          blk_end_bidi_request
                          |          |          |          blk_end_request
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          |          
                          |          |          |          |--39.08%-- syscall_trace_leave
                          |          |          |          |          int_check_syscall_exit_work
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--30.91%-- do_munmap
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--22.41%-- syscall_trace_enter
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |           --7.60%-- brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--2.14%-- syscall_trace_leave
                          |          |          |          int_check_syscall_exit_work
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--1.63%-- sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--1.55%-- put_io_page
                          |          |          |          ext4_end_bio
                          |          |          |          bio_endio
                          |          |          |          req_bio_endio
                          |          |          |          blk_update_request
                          |          |          |          blk_update_bidi_request
                          |          |          |          blk_end_bidi_request
                          |          |          |          blk_end_request
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          |          
                          |          |          |          |--48.38%-- syscall_trace_enter
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--32.68%-- syscall_trace_leave
                          |          |          |          |          int_check_syscall_exit_work
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |           --18.95%-- do_munmap
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--1.52%-- brk
                          |          |          |          |          
                          |          |          |           --100.00%-- __libc_start_main
                          |          |          |          
                          |          |          |--1.34%-- blk_end_bidi_request
                          |          |          |          blk_end_request
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          syscall_trace_enter
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--1.33%-- sub_preempt_count
                          |          |          |          |          
                          |          |          |          |--88.20%-- perf_event_mmap
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--6.26%-- __percpu_counter_add
                          |          |          |          |          |          
                          |          |          |          |          |--61.61%-- do_munmap
                          |          |          |          |          |          sys_brk
                          |          |          |          |          |          tracesys
                          |          |          |          |          |          brk
                          |          |          |          |          |          __libc_start_main
                          |          |          |          |          |          
                          |          |          |          |           --38.39%-- __vm_enough_memory
                          |          |          |          |                     selinux_vm_enough_memory
                          |          |          |          |                     security_vm_enough_memory_mm
                          |          |          |          |                     do_brk
                          |          |          |          |                     sys_brk
                          |          |          |          |                     tracesys
                          |          |          |          |                     brk
                          |          |          |          |                     __libc_start_main
                          |          |          |          |          
                          |          |          |           --5.54%-- lru_add_drain
                          |          |          |                     unmap_region
                          |          |          |                     do_munmap
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--1.24%-- T.749
                          |          |          |          add_timer_randomness
                          |          |          |          add_disk_randomness
                          |          |          |          blk_update_bidi_request
                          |          |          |          blk_end_bidi_request
                          |          |          |          blk_end_request
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          |          
                          |          |          |          |--52.04%-- syscall_trace_enter
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |           --47.96%-- brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--1.14%-- add_preempt_count
                          |          |          |          |          
                          |          |          |          |--82.94%-- perf_event_mmap
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--12.31%-- __percpu_counter_add
                          |          |          |          |          |          
                          |          |          |          |          |--54.66%-- __vm_enough_memory
                          |          |          |          |          |          selinux_vm_enough_memory
                          |          |          |          |          |          security_vm_enough_memory_mm
                          |          |          |          |          |          do_brk
                          |          |          |          |          |          sys_brk
                          |          |          |          |          |          tracesys
                          |          |          |          |          |          brk
                          |          |          |          |          |          __libc_start_main
                          |          |          |          |          |          
                          |          |          |          |           --45.34%-- do_munmap
                          |          |          |          |                     sys_brk
                          |          |          |          |                     tracesys
                          |          |          |          |                     brk
                          |          |          |          |                     __libc_start_main
                          |          |          |          |          
                          |          |          |           --4.75%-- lru_add_drain
                          |          |          |                     unmap_region
                          |          |          |                     do_munmap
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--1.06%-- do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.90%-- trace_preempt_on
                          |          |          |          sub_preempt_count
                          |          |          |          |          
                          |          |          |          |--77.99%-- perf_event_mmap
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--14.84%-- __percpu_counter_add
                          |          |          |          |          |          
                          |          |          |          |          |--61.09%-- __vm_enough_memory
                          |          |          |          |          |          selinux_vm_enough_memory
                          |          |          |          |          |          security_vm_enough_memory_mm
                          |          |          |          |          |          do_brk
                          |          |          |          |          |          sys_brk
                          |          |          |          |          |          tracesys
                          |          |          |          |          |          brk
                          |          |          |          |          |          __libc_start_main
                          |          |          |          |          |          
                          |          |          |          |           --38.91%-- do_munmap
                          |          |          |          |                     sys_brk
                          |          |          |          |                     tracesys
                          |          |          |          |                     brk
                          |          |          |          |                     __libc_start_main
                          |          |          |          |          
                          |          |          |           --7.17%-- lru_add_drain
                          |          |          |                     unmap_region
                          |          |          |                     do_munmap
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--0.83%-- __vma_link_rb
                          |          |          |          vma_link
                          |          |          |          do_brk
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.82%-- remove_vma
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.78%-- bio_endio
                          |          |          |          req_bio_endio
                          |          |          |          blk_update_request
                          |          |          |          blk_update_bidi_request
                          |          |          |          blk_end_bidi_request
                          |          |          |          blk_end_request
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          |          
                          |          |          |          |--59.92%-- brk
                          |          |          |          |          
                          |          |          |           --40.08%-- sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--0.65%-- scsi_dispatch_cmd
                          |          |          |          scsi_request_fn
                          |          |          |          __blk_run_queue_uncond
                          |          |          |          __blk_run_queue
                          |          |          |          blk_run_queue
                          |          |          |          scsi_run_queue
                          |          |          |          scsi_next_command
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          syscall_trace_enter
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.65%-- unmap_vmas
                          |          |          |          unmap_region
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.64%-- int_check_syscall_exit_work
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.64%-- tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.60%-- ext4_end_bio
                          |          |          |          bio_endio
                          |          |          |          req_bio_endio
                          |          |          |          blk_update_request
                          |          |          |          blk_update_bidi_request
                          |          |          |          blk_end_bidi_request
                          |          |          |          blk_end_request
                          |          |          |          scsi_io_completion
                          |          |          |          scsi_finish_command
                          |          |          |          scsi_softirq_done
                          |          |          |          blk_done_softirq
                          |          |          |          __do_softirq
                          |          |          |          call_softirq
                          |          |          |          do_softirq
                          |          |          |          irq_exit
                          |          |          |          do_IRQ
                          |          |          |          common_interrupt
                          |          |          |          syscall_trace_leave
                          |          |          |          int_check_syscall_exit_work
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.50%-- free_pgtables
                          |          |          |          unmap_region
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |           --4.67%-- [...]
                          |          |          
                          |          |--2.65%-- do_IRQ
                          |          |          common_interrupt
                          |          |          |          
                          |          |          |--44.82%-- syscall_trace_enter
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--8.96%-- do_brk
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--7.18%-- perf_event_mmap
                          |          |          |          do_brk
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--5.58%-- sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--4.42%-- do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--4.13%-- sub_preempt_count
                          |          |          |          |          
                          |          |          |          |--74.15%-- perf_event_mmap
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--13.93%-- __percpu_counter_add
                          |          |          |          |          do_munmap
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |           --11.92%-- lru_add_drain
                          |          |          |                     unmap_region
                          |          |          |                     do_munmap
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--3.58%-- trace_preempt_on
                          |          |          |          sub_preempt_count
                          |          |          |          |          
                          |          |          |          |--74.15%-- perf_event_mmap
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--13.13%-- __percpu_counter_add
                          |          |          |          |          __vm_enough_memory
                          |          |          |          |          selinux_vm_enough_memory
                          |          |          |          |          security_vm_enough_memory_mm
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |           --12.72%-- lru_add_drain
                          |          |          |                     unmap_region
                          |          |          |                     do_munmap
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--3.17%-- add_preempt_count
                          |          |          |          |          
                          |          |          |          |--52.91%-- perf_event_mmap
                          |          |          |          |          do_brk
                          |          |          |          |          sys_brk
                          |          |          |          |          tracesys
                          |          |          |          |          brk
                          |          |          |          |          __libc_start_main
                          |          |          |          |          
                          |          |          |          |--35.90%-- __percpu_counter_add
                          |          |          |          |          |          
                          |          |          |          |          |--53.38%-- __vm_enough_memory
                          |          |          |          |          |          selinux_vm_enough_memory
                          |          |          |          |          |          security_vm_enough_memory_mm
                          |          |          |          |          |          do_brk
                          |          |          |          |          |          sys_brk
                          |          |          |          |          |          tracesys
                          |          |          |          |          |          brk
                          |          |          |          |          |          __libc_start_main
                          |          |          |          |          |          
                          |          |          |          |           --46.62%-- do_munmap
                          |          |          |          |                     sys_brk
                          |          |          |          |                     tracesys
                          |          |          |          |                     brk
                          |          |          |          |                     __libc_start_main
                          |          |          |          |          
                          |          |          |           --11.19%-- lru_add_drain
                          |          |          |                     unmap_region
                          |          |          |                     do_munmap
                          |          |          |                     sys_brk
                          |          |          |                     tracesys
                          |          |          |                     brk
                          |          |          |                     __libc_start_main
                          |          |          |          
                          |          |          |--3.08%-- brk
                          |          |          |          
                          |          |          |--2.69%-- unmap_vmas
                          |          |          |          unmap_region
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--2.61%-- syscall_trace_leave
                          |          |          |          int_check_syscall_exit_work
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--1.50%-- tlb_gather_mmu
                          |          |          |          unmap_region
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--1.37%-- int_check_syscall_exit_work
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--1.11%-- __rb_insert_augmented
                          |          |          |          __vma_link_rb
                          |          |          |          vma_link
                          |          |          |          do_brk
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--1.11%-- free_pgtables
                          |          |          |          unmap_region
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.76%-- event_filter_match
                          |          |          |          perf_event_mmap_ctx
                          |          |          |          perf_event_mmap
                          |          |          |          do_brk
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.70%-- perf_event_mmap_ctx
                          |          |          |          perf_event_mmap
                          |          |          |          do_brk
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.64%-- trace_preempt_off
                          |          |          |          add_preempt_count
                          |          |          |          __percpu_counter_add
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.60%-- __percpu_counter_add
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.53%-- remove_vma
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.52%-- _cond_resched
                          |          |          |          unmap_single_vma
                          |          |          |          unmap_vmas
                          |          |          |          unmap_region
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |          |          
                          |          |          |--0.50%-- vma_rb_erase
                          |          |          |          do_munmap
                          |          |          |          sys_brk
                          |          |          |          tracesys
                          |          |          |          brk
                          |          |          |          __libc_start_main
                          |          |           --0.44%-- [...]
                          |          |          
                          |           --2.21%-- smp_irq_work_interrupt
                          |                     irq_work_interrupt
                          |                     |          
                          |                     |--97.79%-- syscall_trace_enter
                          |                     |          tracesys
                          |                     |          brk
                          |                     |          __libc_start_main
                          |                     |          
                          |                     |--1.22%-- call_softirq
                          |                     |          do_softirq
                          |                     |          irq_exit
                          |                     |          smp_apic_timer_interrupt
                          |                     |          apic_timer_interrupt
                          |                     |          |          
                          |                     |          |--61.97%-- syscall_trace_leave
                          |                     |          |          int_check_syscall_exit_work
                          |                     |          |          brk
                          |                     |          |          __libc_start_main
                          |                     |          |          
                          |                     |           --38.03%-- syscall_trace_enter
                          |                     |                     tracesys
                          |                     |                     brk
                          |                     |                     __libc_start_main
                          |                     |          
                          |                      --1.00%-- __percpu_counter_add
                          |                                do_munmap
                          |                                sys_brk
                          |                                tracesys
                          |                                brk
                          |                                __libc_start_main
                          |          
                           --27.89%-- __do_softirq
                                     call_softirq
                                     do_softirq
                                     irq_exit
                                     |          
                                     |--94.65%-- smp_apic_timer_interrupt
                                     |          apic_timer_interrupt
                                     |          |          
                                     |          |--49.62%-- syscall_trace_enter
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--8.54%-- do_brk
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--6.46%-- perf_event_mmap
                                     |          |          do_brk
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--3.62%-- sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--3.35%-- syscall_trace_leave
                                     |          |          int_check_syscall_exit_work
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--2.47%-- sub_preempt_count
                                     |          |          |          
                                     |          |          |--83.42%-- perf_event_mmap
                                     |          |          |          do_brk
                                     |          |          |          sys_brk
                                     |          |          |          tracesys
                                     |          |          |          brk
                                     |          |          |          __libc_start_main
                                     |          |          |          
                                     |          |          |--9.00%-- lru_add_drain
                                     |          |          |          unmap_region
                                     |          |          |          do_munmap
                                     |          |          |          sys_brk
                                     |          |          |          tracesys
                                     |          |          |          brk
                                     |          |          |          __libc_start_main
                                     |          |          |          
                                     |          |           --7.59%-- __percpu_counter_add
                                     |          |                     |          
                                     |          |                     |--55.07%-- do_munmap
                                     |          |                     |          sys_brk
                                     |          |                     |          tracesys
                                     |          |                     |          brk
                                     |          |                     |          __libc_start_main
                                     |          |                     |          
                                     |          |                      --44.93%-- __vm_enough_memory
                                     |          |                                selinux_vm_enough_memory
                                     |          |                                security_vm_enough_memory_mm
                                     |          |                                do_brk
                                     |          |                                sys_brk
                                     |          |                                tracesys
                                     |          |                                brk
                                     |          |                                __libc_start_main
                                     |          |          
                                     |          |--2.40%-- do_munmap
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--2.22%-- brk
                                     |          |          |          
                                     |          |           --100.00%-- __libc_start_main
                                     |          |          
                                     |          |--2.14%-- add_preempt_count
                                     |          |          |          
                                     |          |          |--79.00%-- perf_event_mmap
                                     |          |          |          do_brk
                                     |          |          |          sys_brk
                                     |          |          |          tracesys
                                     |          |          |          brk
                                     |          |          |          __libc_start_main
                                     |          |          |          
                                     |          |          |--15.15%-- __percpu_counter_add
                                     |          |          |          |          
                                     |          |          |          |--61.39%-- __vm_enough_memory
                                     |          |          |          |          selinux_vm_enough_memory
                                     |          |          |          |          security_vm_enough_memory_mm
                                     |          |          |          |          do_brk
                                     |          |          |          |          sys_brk
                                     |          |          |          |          tracesys
                                     |          |          |          |          brk
                                     |          |          |          |          __libc_start_main
                                     |          |          |          |          
                                     |          |          |           --38.61%-- do_munmap
                                     |          |          |                     sys_brk
                                     |          |          |                     tracesys
                                     |          |          |                     brk
                                     |          |          |                     __libc_start_main
                                     |          |          |          
                                     |          |           --5.85%-- lru_add_drain
                                     |          |                     unmap_region
                                     |          |                     do_munmap
                                     |          |                     sys_brk
                                     |          |                     tracesys
                                     |          |                     brk
                                     |          |                     __libc_start_main
                                     |          |          
                                     |          |--1.74%-- trace_preempt_on
                                     |          |          sub_preempt_count
                                     |          |          |          
                                     |          |          |--72.01%-- perf_event_mmap
                                     |          |          |          do_brk
                                     |          |          |          sys_brk
                                     |          |          |          tracesys
                                     |          |          |          brk
                                     |          |          |          __libc_start_main
                                     |          |          |          
                                     |          |          |--18.33%-- __percpu_counter_add
                                     |          |          |          |          
                                     |          |          |          |--63.07%-- __vm_enough_memory
                                     |          |          |          |          selinux_vm_enough_memory
                                     |          |          |          |          security_vm_enough_memory_mm
                                     |          |          |          |          do_brk
                                     |          |          |          |          sys_brk
                                     |          |          |          |          tracesys
                                     |          |          |          |          brk
                                     |          |          |          |          __libc_start_main
                                     |          |          |          |          
                                     |          |          |           --36.93%-- do_munmap
                                     |          |          |                     sys_brk
                                     |          |          |                     tracesys
                                     |          |          |                     brk
                                     |          |          |                     __libc_start_main
                                     |          |          |          
                                     |          |           --9.66%-- lru_add_drain
                                     |          |                     unmap_region
                                     |          |                     do_munmap
                                     |          |                     sys_brk
                                     |          |                     tracesys
                                     |          |                     brk
                                     |          |                     __libc_start_main
                                     |          |          
                                     |          |--1.72%-- remove_vma
                                     |          |          do_munmap
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--1.66%-- __vma_link_rb
                                     |          |          vma_link
                                     |          |          do_brk
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--1.50%-- unmap_vmas
                                     |          |          unmap_region
                                     |          |          do_munmap
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--1.50%-- tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--1.11%-- unmap_region
                                     |          |          do_munmap
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--1.06%-- free_pgtables
                                     |          |          unmap_region
                                     |          |          do_munmap
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--0.94%-- lru_add_drain
                                     |          |          unmap_region
                                     |          |          do_munmap
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--0.94%-- int_check_syscall_exit_work
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--0.86%-- __rb_insert_augmented
                                     |          |          __vma_link_rb
                                     |          |          vma_link
                                     |          |          do_brk
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--0.77%-- perf_event_mmap_ctx
                                     |          |          perf_event_mmap
                                     |          |          do_brk
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |          |          
                                     |          |--0.73%-- __percpu_counter_add
                                     |          |          |          
                                     |          |          |--67.03%-- __vm_enough_memory
                                     |          |          |          selinux_vm_enough_memory
                                     |          |          |          security_vm_enough_memory_mm
                                     |          |          |          do_brk
                                     |          |          |          sys_brk
                                     |          |          |          tracesys
                                     |          |          |          brk
                                     |          |          |          __libc_start_main
                                     |          |          |          
                                     |          |           --32.97%-- do_munmap
                                     |          |                     sys_brk
                                     |          |                     tracesys
                                     |          |                     brk
                                     |          |                     __libc_start_main
                                     |          |          
                                     |          |--0.68%-- trace_preempt_off
                                     |          |          add_preempt_count
                                     |          |          |          
                                     |          |          |--77.33%-- perf_event_mmap
                                     |          |          |          do_brk
                                     |          |          |          sys_brk
                                     |          |          |          tracesys
                                     |          |          |          brk
                                     |          |          |          __libc_start_main
                                     |          |          |          
                                     |          |           --22.67%-- __percpu_counter_add
                                     |          |                     |          
                                     |          |                     |--53.36%-- __vm_enough_memory
                                     |          |                     |          selinux_vm_enough_memory
                                     |          |                     |          security_vm_enough_memory_mm
                                     |          |                     |          do_brk
                                     |          |                     |          sys_brk
                                     |          |                     |          tracesys
                                     |          |                     |          brk
                                     |          |                     |          __libc_start_main
                                     |          |                     |          
                                     |          |                      --46.64%-- do_munmap
                                     |          |                                sys_brk
                                     |          |                                tracesys
                                     |          |                                brk
                                     |          |                                __libc_start_main
                                     |          |          
                                     |          |--0.57%-- cred_has_capability
                                     |          |          selinux_capable
                                     |          |          selinux_vm_enough_memory
                                     |          |          security_vm_enough_memory_mm
                                     |          |          do_brk
                                     |          |          sys_brk
                                     |          |          tracesys
                                     |          |          brk
                                     |          |          __libc_start_main
                                     |           --3.38%-- [...]
                                     |          
                                      --5.35%-- do_IRQ
                                                common_interrupt
                                                |          
                                                |--49.68%-- syscall_trace_enter
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--7.82%-- do_brk
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--5.91%-- perf_event_mmap
                                                |          do_brk
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--5.28%-- do_munmap
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--4.76%-- sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--3.77%-- sub_preempt_count
                                                |          |          
                                                |          |--69.53%-- perf_event_mmap
                                                |          |          do_brk
                                                |          |          sys_brk
                                                |          |          tracesys
                                                |          |          brk
                                                |          |          __libc_start_main
                                                |          |          
                                                |          |--15.90%-- lru_add_drain
                                                |          |          unmap_region
                                                |          |          do_munmap
                                                |          |          sys_brk
                                                |          |          tracesys
                                                |          |          brk
                                                |          |          __libc_start_main
                                                |          |          
                                                |           --14.57%-- __percpu_counter_add
                                                |                     do_munmap
                                                |                     sys_brk
                                                |                     tracesys
                                                |                     brk
                                                |                     __libc_start_main
                                                |          
                                                |--3.21%-- add_preempt_count
                                                |          |          
                                                |          |--50.12%-- perf_event_mmap
                                                |          |          do_brk
                                                |          |          sys_brk
                                                |          |          tracesys
                                                |          |          brk
                                                |          |          __libc_start_main
                                                |          |          
                                                |          |--35.64%-- __percpu_counter_add
                                                |          |          |          
                                                |          |          |--51.17%-- do_munmap
                                                |          |          |          sys_brk
                                                |          |          |          tracesys
                                                |          |          |          brk
                                                |          |          |          __libc_start_main
                                                |          |          |          
                                                |          |           --48.83%-- __vm_enough_memory
                                                |          |                     selinux_vm_enough_memory
                                                |          |                     security_vm_enough_memory_mm
                                                |          |                     do_brk
                                                |          |                     sys_brk
                                                |          |                     tracesys
                                                |          |                     brk
                                                |          |                     __libc_start_main
                                                |          |          
                                                |           --14.24%-- lru_add_drain
                                                |                     unmap_region
                                                |                     do_munmap
                                                |                     sys_brk
                                                |                     tracesys
                                                |                     brk
                                                |                     __libc_start_main
                                                |          
                                                |--3.02%-- trace_preempt_on
                                                |          sub_preempt_count
                                                |          |          
                                                |          |--62.98%-- perf_event_mmap
                                                |          |          do_brk
                                                |          |          sys_brk
                                                |          |          tracesys
                                                |          |          brk
                                                |          |          __libc_start_main
                                                |          |          
                                                |          |--19.01%-- __percpu_counter_add
                                                |          |          __vm_enough_memory
                                                |          |          selinux_vm_enough_memory
                                                |          |          security_vm_enough_memory_mm
                                                |          |          do_brk
                                                |          |          sys_brk
                                                |          |          tracesys
                                                |          |          brk
                                                |          |          __libc_start_main
                                                |          |          
                                                |           --18.01%-- lru_add_drain
                                                |                     unmap_region
                                                |                     do_munmap
                                                |                     sys_brk
                                                |                     tracesys
                                                |                     brk
                                                |                     __libc_start_main
                                                |          
                                                |--2.79%-- unmap_vmas
                                                |          unmap_region
                                                |          do_munmap
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--2.53%-- brk
                                                |          
                                                |--1.90%-- syscall_trace_leave
                                                |          int_check_syscall_exit_work
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--1.56%-- tlb_gather_mmu
                                                |          unmap_region
                                                |          do_munmap
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--1.21%-- free_pgtables
                                                |          unmap_region
                                                |          do_munmap
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--0.99%-- int_check_syscall_exit_work
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--0.95%-- __rb_insert_augmented
                                                |          __vma_link_rb
                                                |          vma_link
                                                |          do_brk
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--0.72%-- remove_vma
                                                |          do_munmap
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--0.64%-- perf_event_mmap_ctx
                                                |          perf_event_mmap
                                                |          do_brk
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--0.62%-- _cond_resched
                                                |          unmap_single_vma
                                                |          unmap_vmas
                                                |          unmap_region
                                                |          do_munmap
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--0.61%-- event_filter_match
                                                |          perf_event_mmap_ctx
                                                |          perf_event_mmap
                                                |          do_brk
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--0.59%-- vma_rb_erase
                                                |          do_munmap
                                                |          sys_brk
                                                |          tracesys
                                                |          brk
                                                |          __libc_start_main
                                                |          
                                                |--0.54%-- tracesys
                                                |          brk
                                                |          __libc_start_main
                                                 --0.91%-- [...]



# Samples: 1M of event 'cputime:account_user'
# Event count (approx.): 2426285158
#
# Overhead     Command      Shared Object                       Symbol
# ........  ..........  .................  ...........................
#
   100.00%  kernelspin  [kernel.kallsyms]  [k] perf_trace_account_user
            |
            --- perf_trace_account_user
                account_user_time
                vtime_account_user
               |          
               |--99.62%-- user_exit
               |          |          
               |          |--99.98%-- syscall_trace_enter
               |          |          tracesys
               |          |          |          
               |          |          |--100.00%-- brk
               |          |          |          |          
               |          |          |           --100.00%-- __libc_start_main
               |          |           --0.00%-- [...]
               |           --0.02%-- [...]
                --0.38%-- [...]



#
# (For a higher level overview, try: perf report --sort comm,dso)
#