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Message-ID: <099cfe59-1601-a0fc-3849-13eee8754130@linux.intel.com>
Date: Wed, 10 Jun 2020 11:21:13 +0800
From: Xing Zhengjun <zhengjun.xing@...ux.intel.com>
To: kernel test robot <rong.a.chen@...el.com>,
Mimi Zohar <zohar@...ux.ibm.com>
Cc: Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: Re: [LKP] [ima] 8eb613c0b8: stress-ng.icache.ops_per_sec -84.2%
regression
Hi Mimi,
Do you have time to take a look at this? we noticed a 3.7%
regression of boot-time.dhcp and a 84.2% regression of
stress-ng.icache.ops_per_sec. Thanks.
On 6/3/2020 5:11 PM, kernel test robot wrote:
> Greeting,
>
> FYI, we noticed a 3.7% regression of boot-time.dhcp due to commit:
>
>
> commit: 8eb613c0b8f19627ba1846dcf78bb2c85edbe8dd ("ima: verify mprotect change is consistent with mmap policy")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
>
> in testcase: stress-ng
> on test machine: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 192G memory
> with following parameters:
>
> nr_threads: 100%
> disk: 1HDD
> testtime: 30s
> class: cpu-cache
> cpufreq_governor: performance
> ucode: 0x500002c
>
>
>
>
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <rong.a.chen@...el.com>
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> To reproduce:
>
> git clone https://github.com/intel/lkp-tests.git
> cd lkp-tests
> bin/lkp install job.yaml # job file is attached in this email
> bin/lkp run job.yaml
>
> =========================================================================================
> class/compiler/cpufreq_governor/disk/kconfig/nr_threads/rootfs/tbox_group/testcase/testtime/ucode:
> cpu-cache/gcc-9/performance/1HDD/x86_64-rhel-7.6/100%/debian-x86_64-20191114.cgz/lkp-csl-2sp5/stress-ng/30s/0x500002c
>
> commit:
> 0c4395fb2a ("evm: Fix possible memory leak in evm_calc_hmac_or_hash()")
> 8eb613c0b8 ("ima: verify mprotect change is consistent with mmap policy")
>
> 0c4395fb2aa77341 8eb613c0b8f19627ba1846dcf78
> ---------------- ---------------------------
> fail:runs %reproduction fail:runs
> | | |
> :4 25% 1:4 dmesg.WARNING:at#for_ip_interrupt_entry/0x
> 0:4 3% 0:4 perf-profile.children.cycles-pp.error_entry
> %stddev %change %stddev
> \ | \
> 1245570 -84.2% 197151 stress-ng.icache.ops
> 41517 -84.2% 6570 stress-ng.icache.ops_per_sec
> 1.306e+09 -82.1% 2.338e+08 stress-ng.time.minor_page_faults
> 2985 +13.5% 3387 stress-ng.time.system_time
> 4.28 +13.1% 4.85 iostat.cpu.system
> 4.18 +0.6 4.73 mpstat.cpu.all.sys%
> 10121 +9.6% 11096 ± 3% softirqs.CPU67.SCHED
> 203299 -4.2% 194854 ± 5% vmstat.system.in
> 26.91 +2.8% 27.67 ± 3% boot-time.boot
> 16.34 +3.7% 16.94 ± 2% boot-time.dhcp
> 2183 ± 3% +3.7% 2263 boot-time.idle
> 1042938 ± 80% +8208.2% 86649242 ±156% cpuidle.C1.time
> 48428 ±114% +1842.4% 940677 ±151% cpuidle.C1.usage
> 15748 ± 28% +301.0% 63144 ± 79% cpuidle.POLL.usage
> 61300 ± 4% +82.8% 112033 ± 11% numa-vmstat.node1.nr_active_anon
> 47060 ± 3% +106.8% 97323 ± 12% numa-vmstat.node1.nr_anon_pages
> 42.67 ± 2% +217.0% 135.25 ± 14% numa-vmstat.node1.nr_anon_transparent_hugepages
> 61301 ± 4% +82.8% 112032 ± 11% numa-vmstat.node1.nr_zone_active_anon
> 3816 ± 2% +3.0% 3931 proc-vmstat.nr_page_table_pages
> 35216541 +2.9% 36244047 proc-vmstat.pgalloc_normal
> 1.308e+09 -82.0% 2.356e+08 proc-vmstat.pgfault
> 35173363 +2.8% 36173843 proc-vmstat.pgfree
> 248171 ± 5% +82.5% 452893 ± 11% numa-meminfo.node1.Active
> 244812 ± 4% +83.5% 449116 ± 11% numa-meminfo.node1.Active(anon)
> 88290 ± 3% +214.4% 277591 ± 15% numa-meminfo.node1.AnonHugePages
> 187940 ± 3% +107.8% 390486 ± 12% numa-meminfo.node1.AnonPages
> 1366813 ± 3% +12.0% 1530428 ± 6% numa-meminfo.node1.MemUsed
> 571.00 ± 8% +10.4% 630.50 ± 8% slabinfo.UDP.active_objs
> 571.00 ± 8% +10.4% 630.50 ± 8% slabinfo.UDP.num_objs
> 300.00 ± 5% +20.0% 360.00 ± 10% slabinfo.kmem_cache.active_objs
> 300.00 ± 5% +20.0% 360.00 ± 10% slabinfo.kmem_cache.num_objs
> 606.33 ± 4% +17.6% 713.00 ± 8% slabinfo.kmem_cache_node.active_objs
> 661.33 ± 4% +16.1% 768.00 ± 8% slabinfo.kmem_cache_node.num_objs
> 114561 ± 23% -34.3% 75239 ± 7% sched_debug.cfs_rq:/.load.max
> 14869 ± 22% -36.6% 9424 ± 8% sched_debug.cfs_rq:/.load.stddev
> 4040842 ± 5% +18.0% 4767515 ± 13% sched_debug.cpu.avg_idle.max
> 2019061 ± 8% +25.5% 2534134 ± 14% sched_debug.cpu.max_idle_balance_cost.max
> 378044 ± 3% +22.5% 463135 ± 8% sched_debug.cpu.max_idle_balance_cost.stddev
> 41605 +12.6% 46852 ± 2% sched_debug.cpu.nr_switches.max
> 44445 ± 2% +11.8% 49668 ± 3% sched_debug.cpu.sched_count.max
> 7704 ± 8% +26.6% 9753 ± 14% sched_debug.cpu.sched_goidle.max
> 584.16 ± 4% +135.0% 1372 ± 57% sched_debug.cpu.sched_goidle.stddev
> 1416 ± 3% +32.2% 1873 ± 19% sched_debug.cpu.ttwu_local.stddev
> 0.33 ±141% +18200.0% 61.00 ±152% interrupts.40:PCI-MSI.31981573-edge.i40e-eth0-TxRx-4
> 79.67 ±124% -99.1% 0.75 ±110% interrupts.89:PCI-MSI.31981622-edge.i40e-eth0-TxRx-53
> 6318 +44.6% 9134 ± 6% interrupts.CPU1.RES:Rescheduling_interrupts
> 5245 ± 35% +50.1% 7871 interrupts.CPU11.NMI:Non-maskable_interrupts
> 5245 ± 35% +50.1% 7871 interrupts.CPU11.PMI:Performance_monitoring_interrupts
> 67.00 ± 58% -79.9% 13.50 ± 76% interrupts.CPU16.TLB:TLB_shootdowns
> 861.67 +39.1% 1198 ± 31% interrupts.CPU23.RES:Rescheduling_interrupts
> 796.33 ± 2% +9.4% 871.50 ± 2% interrupts.CPU34.RES:Rescheduling_interrupts
> 0.33 ±141% +18125.0% 60.75 ±153% interrupts.CPU4.40:PCI-MSI.31981573-edge.i40e-eth0-TxRx-4
> 1271 ± 43% +47.2% 1872 ± 26% interrupts.CPU51.RES:Rescheduling_interrupts
> 79.33 ±125% -99.4% 0.50 ±173% interrupts.CPU53.89:PCI-MSI.31981622-edge.i40e-eth0-TxRx-53
> 844.00 ± 2% +63.7% 1381 ± 34% interrupts.CPU6.RES:Rescheduling_interrupts
> 786.00 ± 4% +21.2% 953.00 ± 13% interrupts.CPU69.RES:Rescheduling_interrupts
> 855.67 ± 11% +96.3% 1679 ± 60% interrupts.CPU8.RES:Rescheduling_interrupts
> 178.33 ± 43% -81.2% 33.50 ± 85% interrupts.CPU8.TLB:TLB_shootdowns
> 820.67 ± 9% -18.8% 666.25 ± 9% interrupts.CPU82.RES:Rescheduling_interrupts
> 4.464e+10 -2.9% 4.336e+10 perf-stat.i.branch-instructions
> 2.65 +0.1 2.73 perf-stat.i.branch-miss-rate%
> 6.32 ± 3% +5.3% 6.65 ± 2% perf-stat.i.cpi
> 19226980 -8.5% 17587852 perf-stat.i.dTLB-load-misses
> 5.17e+10 -3.5% 4.989e+10 perf-stat.i.dTLB-loads
> 5874100 -52.1% 2811682 perf-stat.i.dTLB-store-misses
> 1.968e+10 -5.4% 1.861e+10 perf-stat.i.dTLB-stores
> 6448559 ± 3% -45.3% 3527950 ± 9% perf-stat.i.iTLB-load-misses
> 31409753 ± 4% -53.3% 14680095 ± 3% perf-stat.i.iTLB-loads
> 2.267e+11 -2.9% 2.201e+11 perf-stat.i.instructions
> 0.93 -2.7% 0.91 perf-stat.i.ipc
> 1155 -3.9% 1110 perf-stat.i.metric.M/sec
> 1819587 -82.9% 311898 perf-stat.i.minor-faults
> 1819587 -82.9% 311898 perf-stat.i.page-faults
> 3.49 +3.3% 3.61 perf-stat.overall.MPKI
> 2.26 +0.1 2.32 perf-stat.overall.branch-miss-rate%
> 1.08 +3.5% 1.12 perf-stat.overall.cpi
> 0.04 -0.0 0.04 perf-stat.overall.dTLB-load-miss-rate%
> 0.03 -0.0 0.02 perf-stat.overall.dTLB-store-miss-rate%
> 17.10 +2.4 19.49 ± 6% perf-stat.overall.iTLB-load-miss-rate%
> 35144 ± 2% +75.7% 61761 ± 8% perf-stat.overall.instructions-per-iTLB-miss
> 0.92 -3.3% 0.89 perf-stat.overall.ipc
> 4.286e+10 -3.0% 4.156e+10 perf-stat.ps.branch-instructions
> 18403186 -8.6% 16825390 perf-stat.ps.dTLB-load-misses
> 4.958e+10 -3.6% 4.778e+10 perf-stat.ps.dTLB-loads
> 5647388 -51.3% 2750721 perf-stat.ps.dTLB-store-misses
> 1.886e+10 -5.5% 1.782e+10 perf-stat.ps.dTLB-stores
> 6190595 ± 2% -44.4% 3440326 ± 9% perf-stat.ps.iTLB-load-misses
> 30030226 ± 4% -52.8% 14185074 ± 3% perf-stat.ps.iTLB-loads
> 2.174e+11 -3.1% 2.107e+11 perf-stat.ps.instructions
> 1737379 -82.0% 312180 perf-stat.ps.minor-faults
> 1737379 -82.0% 312180 perf-stat.ps.page-faults
> 1.635e+14 -3.1% 1.585e+14 perf-stat.total.instructions
> 0.97 ± 3% -0.3 0.70 ± 9% perf-profile.calltrace.cycles-pp.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.ksys_write
> 0.97 ± 3% -0.3 0.70 ± 9% perf-profile.calltrace.cycles-pp.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write
> 0.98 ± 4% -0.3 0.71 ± 10% perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.98 ± 4% -0.3 0.71 ± 10% perf-profile.calltrace.cycles-pp.generic_file_write_iter.new_sync_write.vfs_write.ksys_write.do_syscall_64
> 0.99 ± 3% -0.2 0.74 ± 11% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_write
> 1.02 ± 3% -0.2 0.77 ± 9% perf-profile.calltrace.cycles-pp.perf_mmap__push.cmd_record.main.__libc_start_main
> 1.00 ± 4% -0.2 0.76 ± 10% perf-profile.calltrace.cycles-pp.__GI___libc_write.perf_mmap__push.cmd_record.main.__libc_start_main
> 0.99 ± 3% -0.2 0.75 ± 9% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_write.perf_mmap__push
> 0.99 ± 3% -0.2 0.76 ± 10% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__GI___libc_write.perf_mmap__push.cmd_record.main
> 0.99 ± 3% -0.2 0.76 ± 10% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_write.perf_mmap__push.cmd_record
> 2.99 ± 5% +0.4 3.37 ± 5% perf-profile.calltrace.cycles-pp.lapic_next_deadline.clockevents_program_event.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
> 2.06 ± 9% +0.4 2.45 ± 11% perf-profile.calltrace.cycles-pp.update_curr.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle
> 2.43 ± 7% +0.4 2.84 ± 7% perf-profile.calltrace.cycles-pp.native_write_msr.lapic_next_deadline.clockevents_program_event.hrtimer_interrupt.smp_apic_timer_interrupt
> 0.17 ±141% +0.4 0.60 ± 13% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.rcu_core.__softirqentry_text_start.irq_exit.smp_apic_timer_interrupt
> 0.19 ±141% +0.5 0.68 ± 14% perf-profile.calltrace.cycles-pp.reweight_entity.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle
> 1.50 ± 15% +0.5 2.03 ± 9% perf-profile.calltrace.cycles-pp.native_write_msr.__intel_pmu_enable_all.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt
> 1.57 ± 16% +0.6 2.12 ± 8% perf-profile.calltrace.cycles-pp.__intel_pmu_enable_all.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt
> 3.58 ± 15% +1.0 4.63 ± 12% perf-profile.calltrace.cycles-pp.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
> 3.94 ± 3% +1.7 5.69 ± 28% perf-profile.calltrace.cycles-pp.hrtimer_active.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle
> 34.96 ± 5% +3.2 38.16 ± 5% perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
> 41.63 ± 5% +4.8 46.42 ± 6% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
> 19.35 ± 3% +5.8 25.16 ± 23% perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt
> 0.41 ± 55% -0.3 0.09 ± 55% perf-profile.children.cycles-pp.alloc_pages_vma
> 1.22 ± 2% -0.3 0.91 ± 15% perf-profile.children.cycles-pp.new_sync_write
> 1.26 -0.3 0.96 ± 13% perf-profile.children.cycles-pp.ksys_write
> 1.23 -0.3 0.94 ± 15% perf-profile.children.cycles-pp.vfs_write
> 0.98 ± 4% -0.3 0.71 ± 8% perf-profile.children.cycles-pp.__generic_file_write_iter
> 0.98 ± 4% -0.3 0.71 ± 8% perf-profile.children.cycles-pp.generic_perform_write
> 0.99 ± 5% -0.3 0.72 ± 10% perf-profile.children.cycles-pp.generic_file_write_iter
> 1.02 ± 3% -0.2 0.77 ± 9% perf-profile.children.cycles-pp.perf_mmap__push
> 1.00 ± 4% -0.2 0.76 ± 10% perf-profile.children.cycles-pp.__GI___libc_write
> 0.16 ± 10% -0.1 0.07 ± 60% perf-profile.children.cycles-pp.hrtimer_run_queues
> 0.15 ± 22% -0.1 0.09 ± 20% perf-profile.children.cycles-pp.run_posix_cpu_timers
> 0.33 ± 8% -0.1 0.27 ± 4% perf-profile.children.cycles-pp.rcu_irq_enter
> 0.04 ± 71% +0.0 0.07 ± 5% perf-profile.children.cycles-pp.path_lookupat
> 0.04 ± 71% +0.0 0.08 ± 10% perf-profile.children.cycles-pp.filename_lookup
> 0.20 ± 22% +0.0 0.25 ± 15% perf-profile.children.cycles-pp.tick_program_event
> 0.20 ± 23% +0.1 0.26 ± 15% perf-profile.children.cycles-pp.cmd_stat
> 0.02 ±141% +0.1 0.08 ± 15% perf-profile.children.cycles-pp.vsnprintf
> 0.00 +0.1 0.06 ± 14% perf-profile.children.cycles-pp.lookup_fast
> 0.12 ± 26% +0.1 0.18 ± 15% perf-profile.children.cycles-pp.enqueue_entity
> 0.03 ±141% +0.1 0.09 ± 39% perf-profile.children.cycles-pp.pagevec_lru_move_fn
> 0.02 ±141% +0.1 0.09 ± 7% perf-profile.children.cycles-pp.__x64_sys_mprotect
> 0.02 ±141% +0.1 0.09 ± 7% perf-profile.children.cycles-pp.do_mprotect_pkey
> 0.19 ± 38% +0.1 0.26 ± 7% perf-profile.children.cycles-pp.update_min_vruntime
> 0.16 ± 29% +0.1 0.23 ± 16% perf-profile.children.cycles-pp.iov_iter_fault_in_readable
> 0.19 ± 5% +0.1 0.27 ± 27% perf-profile.children.cycles-pp.copy_process
> 0.25 ± 14% +0.1 0.33 ± 29% perf-profile.children.cycles-pp.__do_sys_clone
> 0.25 ± 14% +0.1 0.33 ± 29% perf-profile.children.cycles-pp._do_fork
> 0.12 ± 13% +0.1 0.21 ± 17% perf-profile.children.cycles-pp.activate_task
> 0.14 ± 18% +0.1 0.23 ± 23% perf-profile.children.cycles-pp.enqueue_task_fair
> 0.11 ± 29% +0.1 0.20 ± 41% perf-profile.children.cycles-pp.rebalance_domains
> 0.04 ± 71% +0.1 0.13 ± 43% perf-profile.children.cycles-pp.cpuacct_account_field
> 0.12 ± 22% +0.1 0.21 ± 16% perf-profile.children.cycles-pp.ttwu_do_activate
> 0.29 ± 10% +0.1 0.40 ± 24% perf-profile.children.cycles-pp.__libc_fork
> 0.00 +0.1 0.11 ± 48% perf-profile.children.cycles-pp.i40e_handle_lldp_event
> 0.00 +0.1 0.11 ± 48% perf-profile.children.cycles-pp.i40e_asq_send_command
> 0.33 ± 6% +0.1 0.44 ± 19% perf-profile.children.cycles-pp.forkshell
> 0.00 +0.1 0.11 ± 42% perf-profile.children.cycles-pp.i40e_clean_adminq_subtask
> 0.63 +0.1 0.75 ± 14% perf-profile.children.cycles-pp._raw_spin_lock_irq
> 0.02 ±141% +0.1 0.14 ± 62% perf-profile.children.cycles-pp.__x64_sys_poll
> 0.09 ± 13% +0.1 0.21 ± 51% perf-profile.children.cycles-pp.change_prot_numa
> 0.00 +0.1 0.12 ± 43% perf-profile.children.cycles-pp.i40e_service_task
> 0.57 ± 14% +0.1 0.70 ± 17% perf-profile.children.cycles-pp.handle_mm_fault
> 0.02 ±141% +0.1 0.15 ± 55% perf-profile.children.cycles-pp.poll
> 0.85 +0.2 1.07 ± 13% perf-profile.children.cycles-pp.interrupt_entry
> 1.55 ± 5% +0.3 1.80 ± 11% perf-profile.children.cycles-pp.read_tsc
> 0.49 ± 24% +0.3 0.76 ± 15% perf-profile.children.cycles-pp.reweight_entity
> 0.62 ± 10% +0.3 0.90 ± 29% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
> 0.27 ± 28% +0.4 0.63 ± 33% perf-profile.children.cycles-pp.account_user_time
> 3.00 ± 5% +0.4 3.38 ± 5% perf-profile.children.cycles-pp.lapic_next_deadline
> 2.20 ± 8% +0.4 2.62 ± 10% perf-profile.children.cycles-pp.update_curr
> 1.58 ± 15% +0.6 2.13 ± 8% perf-profile.children.cycles-pp.__intel_pmu_enable_all
> 0.31 ±141% +0.6 0.90 ± 39% perf-profile.children.cycles-pp.wake_up_klogd_work_func
> 4.11 ± 9% +1.0 5.07 ± 7% perf-profile.children.cycles-pp.native_write_msr
> 3.62 ± 15% +1.1 4.68 ± 12% perf-profile.children.cycles-pp.perf_mux_hrtimer_handler
> 3.95 ± 3% +1.7 5.70 ± 29% perf-profile.children.cycles-pp.hrtimer_active
> 34.98 ± 5% +3.2 38.18 ± 5% perf-profile.children.cycles-pp.tick_sched_timer
> 15.44 +3.7 19.12 ± 18% perf-profile.children.cycles-pp.scheduler_tick
> 41.67 ± 5% +4.8 46.49 ± 6% perf-profile.children.cycles-pp.__hrtimer_run_queues
> 19.36 ± 3% +5.8 25.18 ± 23% perf-profile.children.cycles-pp.update_process_times
> 0.33 ± 8% -0.1 0.27 ± 7% perf-profile.self.cycles-pp.rcu_irq_enter
> 0.15 ± 23% -0.1 0.09 ± 20% perf-profile.self.cycles-pp.run_posix_cpu_timers
> 0.20 ± 22% +0.0 0.24 ± 13% perf-profile.self.cycles-pp.tick_program_event
> 0.10 ± 12% +0.1 0.17 ± 23% perf-profile.self.cycles-pp.unmap_page_range
> 0.07 ± 30% +0.1 0.13 ± 31% perf-profile.self.cycles-pp.rcu_irq_exit
> 0.00 +0.1 0.06 ± 20% perf-profile.self.cycles-pp.select_idle_sibling
> 0.18 ± 35% +0.1 0.26 ± 7% perf-profile.self.cycles-pp.update_min_vruntime
> 0.04 ± 71% +0.1 0.13 ± 43% perf-profile.self.cycles-pp.cpuacct_account_field
> 0.05 ± 78% +0.1 0.14 ± 49% perf-profile.self.cycles-pp.change_pte_range
> 0.20 ± 21% +0.1 0.32 ± 19% perf-profile.self.cycles-pp.irq_exit
> 0.13 ± 3% +0.1 0.27 ± 29% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
> 0.37 ± 31% +0.2 0.57 ± 21% perf-profile.self.cycles-pp.reweight_entity
> 0.84 ± 2% +0.2 1.07 ± 13% perf-profile.self.cycles-pp.interrupt_entry
> 0.62 ± 8% +0.3 0.87 ± 29% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
> 1.49 ± 6% +0.3 1.75 ± 9% perf-profile.self.cycles-pp.read_tsc
> 0.22 ± 31% +0.3 0.50 ± 33% perf-profile.self.cycles-pp.account_user_time
> 1.47 +0.4 1.91 ± 13% perf-profile.self.cycles-pp.update_curr
> 4.10 ± 10% +1.0 5.05 ± 7% perf-profile.self.cycles-pp.native_write_msr
> 3.93 ± 3% +1.8 5.70 ± 29% perf-profile.self.cycles-pp.hrtimer_active
>
>
>
> stress-ng.time.system_time
>
> 3500 +--------------------------------------------------------------------+
> | O O O O O O O O O O O O O O O O |
> 3000 |..+..+..+..+.+..+..+..+..+..+..+..+.+..+..+..+..+..+ +.+..+ |
> | : : |
> 2500 |-+ : : |
> | : : |
> 2000 |-+ : : |
> | : : |
> 1500 |-+ : : |
> | : : |
> 1000 |-+ : : |
> | : : |
> 500 |-+ :: |
> | : |
> 0 +--------------------------------------------------------------------+
>
>
> stress-ng.time.minor_page_faults
>
> 1.4e+09 +-----------------------------------------------------------------+
> |..+..+.+..+..+..+.+..+..+..+.+..+..+..+.+..+..+..+ +..+..+ |
> 1.2e+09 |-+ : : |
> | : : |
> 1e+09 |-+ : : |
> | : : |
> 8e+08 |-+ : : |
> | : : |
> 6e+08 |-+ : : |
> | : : |
> 4e+08 |-+ : : |
> | :: |
> 2e+08 |-+O O O O O O O O O O O O O O O O O : O O O O |
> | : |
> 0 +-----------------------------------------------------------------+
>
>
> stress-ng.icache.ops
>
> 1.4e+06 +-----------------------------------------------------------------+
> | .+.. |
> 1.2e+06 |..+..+.+..+..+..+ +..+..+.+..+..+..+.+..+..+..+ +..+..+ |
> | : : |
> 1e+06 |-+ : : |
> | : : |
> 800000 |-+ : : |
> | : : |
> 600000 |-+ : : |
> | : : |
> 400000 |-+ : : |
> | :: |
> 200000 |-+O O O O O O O O O O O O O O O O O :: O O O O |
> | : |
> 0 +-----------------------------------------------------------------+
>
>
> stress-ng.icache.ops_per_sec
>
> 45000 +-------------------------------------------------------------------+
> |..+..+..+.+..+..+..+..+..+.+..+..+..+..+..+.+..+..+ +..+.+ |
> 40000 |-+ : : |
> 35000 |-+ : : |
> | : : |
> 30000 |-+ : : |
> 25000 |-+ : : |
> | : : |
> 20000 |-+ : : |
> 15000 |-+ : : |
> | : : |
> 10000 |-+ : : |
> 5000 |-+O O O O O O O O O O O O O O O O O : O O O O |
> | : |
> 0 +-------------------------------------------------------------------+
>
>
> [*] bisect-good sample
> [O] bisect-bad sample
>
>
>
> Disclaimer:
> Results have been estimated based on internal Intel analysis and are provided
> for informational purposes only. Any difference in system hardware or software
> design or configuration may affect actual performance.
>
>
> Thanks,
> Rong Chen
>
>
> _______________________________________________
> LKP mailing list -- lkp@...ts.01.org
> To unsubscribe send an email to lkp-leave@...ts.01.org
>
--
Zhengjun Xing
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