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Message-ID: <202407051440.a54b7d0f-oliver.sang@intel.com>
Date: Fri, 5 Jul 2024 14:30:06 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Mateusz Guzik <mjguzik@...il.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <apparmor@...ts.ubuntu.com>,
	<ying.huang@...el.com>, <feng.tang@...el.com>, <fengwei.yin@...el.com>,
	<john.johansen@...onical.com>, <paul@...l-moore.com>, <jmorris@...ei.org>,
	<serge@...lyn.com>, <linux-kernel@...r.kernel.org>,
	<linux-security-module@...r.kernel.org>, <Neeraj.Upadhyay@....com>, "Mateusz
 Guzik" <mjguzik@...il.com>, <oliver.sang@...el.com>
Subject: Re: [PATCH v2] apparmor: try to avoid refing the label in
 apparmor_file_open



Hello,

kernel test robot noticed a 93.1% improvement of will-it-scale.per_process_ops on:


commit: 22eddbc906d2fc507e4a01484e2985fdd6f3cb2f ("[PATCH v2] apparmor: try to avoid refing the label in apparmor_file_open")
url: https://github.com/intel-lab-lkp/linux/commits/Mateusz-Guzik/apparmor-try-to-avoid-refing-the-label-in-apparmor_file_open/20240625-143723
base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git 55027e689933ba2e64f3d245fb1ff185b3e7fc81
patch link: https://lore.kernel.org/all/20240620171528.167997-1-mjguzik@gmail.com/
patch subject: [PATCH v2] apparmor: try to avoid refing the label in apparmor_file_open

testcase: will-it-scale
test machine: 104 threads 2 sockets (Skylake) with 192G memory
parameters:

	nr_task: 100%
	mode: process
	test: open2
	cpufreq_governor: performance


In addition to that, the commit also has significant impact on the following tests:

+------------------+----------------------------------------------------------------+
| testcase: change | will-it-scale: will-it-scale.per_process_ops 90.7% improvement |
| test machine     | 104 threads 2 sockets (Skylake) with 192G memory               |
| test parameters  | cpufreq_governor=performance                                   |
|                  | mode=process                                                   |
|                  | nr_task=100%                                                   |
|                  | test=open1                                                     |
+------------------+----------------------------------------------------------------+




Details are as below:
-------------------------------------------------------------------------------------------------->


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240705/202407051440.a54b7d0f-oliver.sang@intel.com

=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
  gcc-13/performance/x86_64-rhel-8.3/process/100%/debian-12-x86_64-20240206.cgz/lkp-skl-fpga01/open2/will-it-scale

commit: 
  55027e6899 ("Merge tag 'input-for-v6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input")
  22eddbc906 ("apparmor: try to avoid refing the label in apparmor_file_open")

55027e689933ba2e 22eddbc906d2fc507e4a01484e2 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
      4985 ±  4%     -11.4%       4415 ±  5%  perf-c2c.HITM.local
      1788            -3.3%       1729        vmstat.system.cs
      0.01 ±  2%      -0.0        0.01        mpstat.cpu.all.soft%
     19.61            +3.2       22.81 ±  3%  mpstat.cpu.all.usr%
     12729 ±  3%      -8.1%      11703        proc-vmstat.nr_mapped
     50690 ±  7%     +52.4%      77253 ± 13%  proc-vmstat.pgactivate
    967492            +2.0%     986437        proc-vmstat.pgfault
   4175664           +93.1%    8063854 ±  2%  will-it-scale.104.processes
     40150           +93.1%      77536 ±  2%  will-it-scale.per_process_ops
   4175664           +93.1%    8063854 ±  2%  will-it-scale.workload
    649.36 ± 12%     +19.5%     776.11 ±  4%  sched_debug.cfs_rq:/.util_avg.min
     79.88 ± 16%     -25.0%      59.92 ±  4%  sched_debug.cfs_rq:/.util_avg.stddev
     25.33 ±  8%     -51.6%      12.26 ±  9%  sched_debug.cpu.clock.stddev
      2791 ±  4%     -13.1%       2425 ±  8%  sched_debug.cpu.curr->pid.min
      2958 ±  5%      +9.9%       3251 ±  4%  sched_debug.cpu.nr_switches.stddev
 4.716e+09           +86.3%  8.787e+09 ±  4%  perf-stat.i.branch-instructions
      1.09            -0.1        0.98 ±  6%  perf-stat.i.branch-miss-rate%
  51277236 ±  2%     +60.0%   82061991 ±  4%  perf-stat.i.branch-misses
      1741            -2.8%       1692        perf-stat.i.context-switches
     11.66           -47.6%       6.11        perf-stat.i.cpi
    145.32           +11.1%     161.46        perf-stat.i.cpu-migrations
 2.479e+10           +86.9%  4.634e+10 ±  4%  perf-stat.i.instructions
      0.09 ±  2%     +89.9%       0.17        perf-stat.i.ipc
      1.09 ±  2%      -0.2        0.93        perf-stat.overall.branch-miss-rate%
     11.67           -47.1%       6.17 ±  2%  perf-stat.overall.cpi
      0.09           +89.2%       0.16 ±  2%  perf-stat.overall.ipc
   1790350            -1.8%    1758176        perf-stat.overall.path-length
   4.7e+09           +86.3%  8.758e+09 ±  4%  perf-stat.ps.branch-instructions
  51036303 ±  2%     +60.2%   81758969 ±  4%  perf-stat.ps.branch-misses
      1734            -2.8%       1685        perf-stat.ps.context-switches
    144.39           +11.4%     160.88        perf-stat.ps.cpu-migrations
 2.471e+10           +87.0%   4.62e+10 ±  4%  perf-stat.ps.instructions
 7.476e+12           +89.7%  1.418e+13 ±  2%  perf-stat.total.instructions
     27.64           -22.1        5.54 ±  7%  perf-profile.calltrace.cycles-pp.security_file_open.do_dentry_open.do_open.path_openat.do_filp_open
     27.59           -22.1        5.50 ±  7%  perf-profile.calltrace.cycles-pp.apparmor_file_open.security_file_open.do_dentry_open.do_open.path_openat
     29.20           -21.6        7.60 ±  3%  perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
     34.98           -19.0       16.00 ±  4%  perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
     58.91           -10.1       48.79        perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
     58.99           -10.0       48.95        perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
     59.31            -9.9       49.38        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
     60.42            -9.3       51.07        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64
     53.49            -8.3       45.16        perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64
     53.68            -8.2       45.50        perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
     73.99            -8.1       65.90        perf-profile.calltrace.cycles-pp.open64
      3.15 ±  4%      -2.5        0.63 ± 16%  perf-profile.calltrace.cycles-pp.putname.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      3.90            +0.1        4.03 ±  2%  perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.__close
      0.52            +0.4        0.94 ±  3%  perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
      0.65            +0.5        1.10 ±  2%  perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64
      3.34 ±  3%      +0.6        3.90        perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.open64
      0.87            +0.6        1.51 ±  2%  perf-profile.calltrace.cycles-pp.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      7.82            +0.8        8.60 ±  3%  perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.open64
      0.00            +0.8        0.78 ±  2%  perf-profile.calltrace.cycles-pp.__check_object_size.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat
      0.00            +0.8        0.80 ±  3%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.open64
      0.00            +0.8        0.83 ±  3%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.__close
      1.48            +0.9        2.40 ±  3%  perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
      2.19 ±  2%      +1.3        3.54        perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__close
      3.28 ±  5%      +2.7        5.95 ±  6%  perf-profile.calltrace.cycles-pp.apparmor_current_getsecid_subj.security_current_getsecid_subj.ima_file_check.security_file_post_open.do_open
      3.31 ±  5%      +2.7        6.00 ±  6%  perf-profile.calltrace.cycles-pp.security_current_getsecid_subj.ima_file_check.security_file_post_open.do_open.path_openat
      3.62 ±  4%      +2.8        6.40 ±  5%  perf-profile.calltrace.cycles-pp.ima_file_check.security_file_post_open.do_open.path_openat.do_filp_open
      3.66 ±  4%      +2.8        6.44 ±  5%  perf-profile.calltrace.cycles-pp.security_file_post_open.do_open.path_openat.do_filp_open.do_sys_openat2
     12.01            +4.9       16.88 ±  2%  perf-profile.calltrace.cycles-pp.apparmor_file_free_security.security_file_free.__fput.__x64_sys_close.do_syscall_64
     12.04            +4.9       16.94 ±  2%  perf-profile.calltrace.cycles-pp.security_file_free.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
     14.50            +5.8       20.27        perf-profile.calltrace.cycles-pp.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
     17.92            +6.1       23.98        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
     16.03            +6.2       22.19        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
     15.50            +6.2       21.72        perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
     25.29            +8.2       33.52        perf-profile.calltrace.cycles-pp.__close
     15.10            +8.9       23.97        perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
     14.08            +9.2       23.29        perf-profile.calltrace.cycles-pp.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file.path_openat
     14.36            +9.4       23.73        perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open
     15.80            +9.4       25.18        perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
     27.62           -22.1        5.50 ±  7%  perf-profile.children.cycles-pp.apparmor_file_open
     27.64           -22.1        5.55 ±  7%  perf-profile.children.cycles-pp.security_file_open
     29.21           -21.6        7.62 ±  3%  perf-profile.children.cycles-pp.do_dentry_open
     35.00           -19.0       16.04 ±  4%  perf-profile.children.cycles-pp.do_open
     58.96           -10.1       48.86        perf-profile.children.cycles-pp.do_sys_openat2
     59.02           -10.0       48.97        perf-profile.children.cycles-pp.__x64_sys_openat
     53.54            -8.3       45.22        perf-profile.children.cycles-pp.path_openat
     53.70            -8.2       45.53        perf-profile.children.cycles-pp.do_filp_open
     73.60            -7.6       66.03        perf-profile.children.cycles-pp.open64
     75.93            -4.2       71.78        perf-profile.children.cycles-pp.do_syscall_64
     79.03            -3.7       75.32        perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
      3.15 ±  4%      -2.5        0.63 ± 16%  perf-profile.children.cycles-pp.putname
      0.80 ± 10%      -0.6        0.16 ±  7%  perf-profile.children.cycles-pp.lockref_get_not_dead
      0.86 ±  9%      -0.6        0.22 ±107%  perf-profile.children.cycles-pp.__cmd_record
      0.86 ±  9%      -0.6        0.22 ±107%  perf-profile.children.cycles-pp.cmd_record
      0.86 ±  9%      -0.6        0.22 ±108%  perf-profile.children.cycles-pp.record__mmap_read_evlist
      0.87 ±  9%      -0.6        0.23 ±104%  perf-profile.children.cycles-pp.main
      0.87 ±  9%      -0.6        0.23 ±104%  perf-profile.children.cycles-pp.run_builtin
      0.84 ±  9%      -0.6        0.21 ±109%  perf-profile.children.cycles-pp.perf_mmap__push
      0.82 ±  8%      -0.6        0.20 ±106%  perf-profile.children.cycles-pp.write
      0.81 ±  9%      -0.6        0.20 ±110%  perf-profile.children.cycles-pp.writen
      0.80 ±  9%      -0.6        0.20 ±110%  perf-profile.children.cycles-pp.record__pushfn
      0.48 ±  8%      -0.4        0.12 ± 99%  perf-profile.children.cycles-pp.ksys_write
      0.42 ±  9%      -0.3        0.11 ±109%  perf-profile.children.cycles-pp.vfs_write
      0.41 ±  9%      -0.3        0.14 ±  6%  perf-profile.children.cycles-pp.mnt_get_write_access
      0.96 ±  5%      -0.1        0.84 ±  6%  perf-profile.children.cycles-pp.lockref_put_return
      0.61 ±  3%      -0.1        0.52 ±  4%  perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
      0.27 ±  6%      -0.1        0.21 ± 10%  perf-profile.children.cycles-pp.__fput_sync
      0.29 ±  9%      -0.1        0.24 ±  2%  perf-profile.children.cycles-pp._raw_spin_lock
      0.10 ±  6%      -0.0        0.08 ±  7%  perf-profile.children.cycles-pp.lockref_get
      0.06 ±  9%      +0.0        0.08 ±  6%  perf-profile.children.cycles-pp.make_vfsuid
      0.24 ±  6%      +0.0        0.27 ±  2%  perf-profile.children.cycles-pp.process_measurement
      0.13 ±  5%      +0.0        0.16 ±  4%  perf-profile.children.cycles-pp.fd_install
      0.08 ±  4%      +0.0        0.11 ±  4%  perf-profile.children.cycles-pp.ima_file_free
      0.08 ±  5%      +0.0        0.13 ±  2%  perf-profile.children.cycles-pp.security_inode_permission
      0.07 ±  6%      +0.0        0.12 ±  7%  perf-profile.children.cycles-pp.set_root
      0.07 ± 10%      +0.0        0.12 ±  6%  perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
      0.00            +0.1        0.05 ±  7%  perf-profile.children.cycles-pp._find_next_zero_bit
      0.00            +0.1        0.05 ±  7%  perf-profile.children.cycles-pp.dnotify_flush
      0.00            +0.1        0.05 ±  7%  perf-profile.children.cycles-pp.get_unused_fd_flags
      0.06 ± 11%      +0.1        0.12 ±  6%  perf-profile.children.cycles-pp.rcu_all_qs
      0.06            +0.1        0.11 ±  6%  perf-profile.children.cycles-pp.x64_sys_call
      0.00            +0.1        0.06 ±  9%  perf-profile.children.cycles-pp.locks_remove_file
      0.00            +0.1        0.06 ±  6%  perf-profile.children.cycles-pp.should_failslab
      0.12 ±  4%      +0.1        0.18 ±  2%  perf-profile.children.cycles-pp.evm_file_release
      0.10 ±  4%      +0.1        0.16 ±  4%  perf-profile.children.cycles-pp.nd_jump_root
      0.00            +0.1        0.06 ±  9%  perf-profile.children.cycles-pp.path_get
      0.07 ±  6%      +0.1        0.14 ±  9%  perf-profile.children.cycles-pp.obj_cgroup_charge
      0.02 ± 99%      +0.1        0.09 ± 10%  perf-profile.children.cycles-pp.file_close_fd_locked
      0.00            +0.1        0.06 ±  7%  perf-profile.children.cycles-pp.getname
      0.00            +0.1        0.07 ± 11%  perf-profile.children.cycles-pp.file_ra_state_init
      0.00            +0.1        0.07 ±  5%  perf-profile.children.cycles-pp.check_stack_object
      0.29 ±  6%      +0.1        0.36 ±  3%  perf-profile.children.cycles-pp.alloc_fd
      0.09 ±  7%      +0.1        0.16 ±  4%  perf-profile.children.cycles-pp.mntput_no_expire
      0.16 ±  7%      +0.1        0.23 ±  4%  perf-profile.children.cycles-pp.path_init
      0.00            +0.1        0.07 ±  8%  perf-profile.children.cycles-pp.refill_obj_stock
      0.20 ±  9%      +0.1        0.27 ±  3%  perf-profile.children.cycles-pp.file_close_fd
      0.10 ± 10%      +0.1        0.18 ±  5%  perf-profile.children.cycles-pp.__lookup_mnt
      0.09 ±  4%      +0.1        0.17 ±  4%  perf-profile.children.cycles-pp.mod_objcg_state
      0.39 ±  4%      +0.1        0.48 ±  2%  perf-profile.children.cycles-pp.__fsnotify_parent
      0.10 ±  4%      +0.1        0.19 ±  3%  perf-profile.children.cycles-pp.__check_heap_object
      0.10 ±  3%      +0.1        0.20 ±  3%  perf-profile.children.cycles-pp.locks_remove_posix
      0.22 ±  5%      +0.1        0.32 ±  2%  perf-profile.children.cycles-pp.syscall_exit_to_user_mode
      0.11 ±  3%      +0.1        0.21 ±  2%  perf-profile.children.cycles-pp.memset_orig
      0.08 ±  6%      +0.1        0.18 ±  3%  perf-profile.children.cycles-pp.build_open_flags
      0.14 ± 17%      +0.1        0.25 ±  9%  perf-profile.children.cycles-pp.testcase
      0.18 ±  2%      +0.1        0.30 ±  3%  perf-profile.children.cycles-pp.__virt_addr_valid
      0.16 ±  2%      +0.1        0.28 ±  2%  perf-profile.children.cycles-pp.__cond_resched
      0.40 ±  6%      +0.1        0.54 ±  4%  perf-profile.children.cycles-pp.may_open
      0.30            +0.2        0.44 ±  2%  perf-profile.children.cycles-pp.check_heap_object
      0.29            +0.2        0.44 ±  2%  perf-profile.children.cycles-pp.security_file_release
      0.17 ±  2%      +0.2        0.33 ±  4%  perf-profile.children.cycles-pp.filp_flush
      0.30 ±  5%      +0.2        0.46 ±  5%  perf-profile.children.cycles-pp.generic_permission
      0.22 ±  5%      +0.2        0.39 ±  6%  perf-profile.children.cycles-pp.__memcg_slab_free_hook
      0.35 ±  7%      +0.2        0.52 ±  4%  perf-profile.children.cycles-pp.__d_lookup_rcu
      0.25 ±  6%      +0.2        0.44 ±  5%  perf-profile.children.cycles-pp.open_last_lookups
      0.35 ±  5%      +0.2        0.55 ±  4%  perf-profile.children.cycles-pp.walk_component
      0.26 ±  2%      +0.2        0.48 ±  4%  perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
      0.40 ±  6%      +0.2        0.63 ±  4%  perf-profile.children.cycles-pp.lookup_fast
      0.32 ±  3%      +0.2        0.55 ±  4%  perf-profile.children.cycles-pp.step_into
      0.64 ±  5%      +0.2        0.88 ±  4%  perf-profile.children.cycles-pp.inode_permission
      0.50            +0.3        0.82 ±  2%  perf-profile.children.cycles-pp.__check_object_size
     12.65            +0.4       13.04        perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
      0.66            +0.5        1.12 ±  2%  perf-profile.children.cycles-pp.strncpy_from_user
      1.42 ±  2%      +0.6        2.01 ±  3%  perf-profile.children.cycles-pp.entry_SYSCALL_64
      0.87            +0.6        1.52 ±  2%  perf-profile.children.cycles-pp.getname_flags
      0.93 ±  2%      +0.7        1.64 ±  3%  perf-profile.children.cycles-pp.kmem_cache_alloc_noprof
      1.50            +0.9        2.42 ±  3%  perf-profile.children.cycles-pp.link_path_walk
      5.64 ±  2%      +1.9        7.57        perf-profile.children.cycles-pp.syscall_return_via_sysret
      3.29 ±  5%      +2.7        5.96 ±  6%  perf-profile.children.cycles-pp.apparmor_current_getsecid_subj
      3.31 ±  5%      +2.7        6.01 ±  6%  perf-profile.children.cycles-pp.security_current_getsecid_subj
      3.64 ±  4%      +2.8        6.41 ±  5%  perf-profile.children.cycles-pp.ima_file_check
      3.66 ±  4%      +2.8        6.44 ±  5%  perf-profile.children.cycles-pp.security_file_post_open
     12.02            +4.9       16.89 ±  2%  perf-profile.children.cycles-pp.apparmor_file_free_security
     12.06            +4.9       16.94 ±  2%  perf-profile.children.cycles-pp.security_file_free
     14.54            +5.8       20.33        perf-profile.children.cycles-pp.__fput
     15.51            +6.2       21.74        perf-profile.children.cycles-pp.__x64_sys_close
     25.38            +8.3       33.68        perf-profile.children.cycles-pp.__close
     15.14            +8.9       24.00        perf-profile.children.cycles-pp.init_file
     14.10            +9.2       23.31        perf-profile.children.cycles-pp.apparmor_file_alloc_security
     14.37            +9.4       23.74        perf-profile.children.cycles-pp.security_file_alloc
     15.82            +9.4       25.20        perf-profile.children.cycles-pp.alloc_empty_file
     27.52           -22.0        5.48 ±  7%  perf-profile.self.cycles-pp.apparmor_file_open
      3.14 ±  4%      -2.5        0.63 ± 16%  perf-profile.self.cycles-pp.putname
      0.80 ± 10%      -0.6        0.16 ±  8%  perf-profile.self.cycles-pp.lockref_get_not_dead
      0.76 ± 12%      -0.5        0.23 ± 30%  perf-profile.self.cycles-pp.init_file
      0.41 ±  8%      -0.3        0.14 ±  7%  perf-profile.self.cycles-pp.mnt_get_write_access
      0.79 ±  5%      -0.2        0.57 ±  4%  perf-profile.self.cycles-pp.kmem_cache_free
      0.94 ±  5%      -0.1        0.81 ±  6%  perf-profile.self.cycles-pp.lockref_put_return
      0.54 ±  2%      -0.1        0.44 ±  2%  perf-profile.self.cycles-pp.do_syscall_64
      0.26 ±  6%      -0.1        0.20 ± 10%  perf-profile.self.cycles-pp.__fput_sync
      0.29 ±  9%      -0.1        0.24 ±  2%  perf-profile.self.cycles-pp._raw_spin_lock
      0.10 ±  6%      -0.0        0.08 ±  7%  perf-profile.self.cycles-pp.lockref_get
      0.06 ±  8%      +0.0        0.07 ±  5%  perf-profile.self.cycles-pp.path_init
      0.05 ±  8%      +0.0        0.07        perf-profile.self.cycles-pp.make_vfsuid
      0.12 ±  5%      +0.0        0.14 ±  3%  perf-profile.self.cycles-pp.fd_install
      0.24 ±  6%      +0.0        0.27        perf-profile.self.cycles-pp.process_measurement
      0.05            +0.0        0.08 ±  8%  perf-profile.self.cycles-pp.dput
      0.07 ±  5%      +0.0        0.10 ±  3%  perf-profile.self.cycles-pp.check_heap_object
      0.08 ±  6%      +0.0        0.11 ±  3%  perf-profile.self.cycles-pp.ima_file_free
      0.05 ±  8%      +0.0        0.09 ±  7%  perf-profile.self.cycles-pp.security_file_alloc
      0.08 ±  5%      +0.0        0.13 ±  2%  perf-profile.self.cycles-pp.security_inode_permission
      0.06            +0.0        0.10 ±  7%  perf-profile.self.cycles-pp.__x64_sys_openat
      0.09 ±  5%      +0.0        0.14 ±  3%  perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
      0.06 ±  7%      +0.0        0.11 ±  5%  perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare
      0.07 ±  5%      +0.0        0.12 ±  9%  perf-profile.self.cycles-pp.set_root
      0.09 ±  4%      +0.0        0.14 ±  4%  perf-profile.self.cycles-pp.security_file_release
      0.06            +0.0        0.11 ±  3%  perf-profile.self.cycles-pp.x64_sys_call
      0.12 ±  5%      +0.1        0.17 ±  2%  perf-profile.self.cycles-pp.syscall_exit_to_user_mode
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.locks_remove_file
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.security_current_getsecid_subj
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.security_file_free
      0.05 ± 13%      +0.1        0.10 ±  7%  perf-profile.self.cycles-pp.rcu_all_qs
      0.00            +0.1        0.05 ±  7%  perf-profile.self.cycles-pp.dnotify_flush
      0.00            +0.1        0.05 ±  7%  perf-profile.self.cycles-pp.get_unused_fd_flags
      0.05 ±  7%      +0.1        0.10 ±  7%  perf-profile.self.cycles-pp.lookup_fast
      0.02 ± 99%      +0.1        0.08 ±  4%  perf-profile.self.cycles-pp.__x64_sys_close
      0.08 ±  7%      +0.1        0.13 ±  5%  perf-profile.self.cycles-pp.ima_file_check
      0.06 ±  8%      +0.1        0.11 ±  5%  perf-profile.self.cycles-pp.obj_cgroup_charge
      0.03 ± 70%      +0.1        0.09 ±  4%  perf-profile.self.cycles-pp.getname_flags
      0.09 ±  5%      +0.1        0.15 ±  2%  perf-profile.self.cycles-pp.do_sys_openat2
      0.00            +0.1        0.06 ±  8%  perf-profile.self.cycles-pp.alloc_empty_file
      0.08 ±  5%      +0.1        0.14 ±  5%  perf-profile.self.cycles-pp.open_last_lookups
      0.00            +0.1        0.06        perf-profile.self.cycles-pp.try_to_unlazy
      0.10 ±  5%      +0.1        0.16 ±  6%  perf-profile.self.cycles-pp.__cond_resched
      0.12 ±  4%      +0.1        0.18 ±  2%  perf-profile.self.cycles-pp.evm_file_release
      0.32 ±  9%      +0.1        0.38 ±  5%  perf-profile.self.cycles-pp.inode_permission
      0.09 ±  9%      +0.1        0.16 ±  6%  perf-profile.self.cycles-pp.mntput_no_expire
      0.00            +0.1        0.06 ±  7%  perf-profile.self.cycles-pp.check_stack_object
      0.02 ±141%      +0.1        0.08 ±  8%  perf-profile.self.cycles-pp.file_close_fd_locked
      0.02 ±141%      +0.1        0.08 ±  5%  perf-profile.self.cycles-pp.filp_flush
      0.04 ± 44%      +0.1        0.11 ±  8%  perf-profile.self.cycles-pp.walk_component
      0.00            +0.1        0.07 ±  8%  perf-profile.self.cycles-pp.refill_obj_stock
      0.07            +0.1        0.14 ±  2%  perf-profile.self.cycles-pp.__check_object_size
      0.10 ±  9%      +0.1        0.17 ±  6%  perf-profile.self.cycles-pp.__lookup_mnt
      0.10 ± 10%      +0.1        0.18 ±  9%  perf-profile.self.cycles-pp.__memcg_slab_free_hook
      0.09 ±  4%      +0.1        0.17 ±  4%  perf-profile.self.cycles-pp.mod_objcg_state
      0.39 ±  4%      +0.1        0.48 ±  2%  perf-profile.self.cycles-pp.__fsnotify_parent
      0.09 ±  4%      +0.1        0.17 ±  6%  perf-profile.self.cycles-pp.may_open
      0.08 ±  5%      +0.1        0.17 ±  3%  perf-profile.self.cycles-pp.alloc_fd
      0.10 ±  4%      +0.1        0.19 ±  3%  perf-profile.self.cycles-pp.__check_heap_object
      0.12 ± 19%      +0.1        0.21 ± 10%  perf-profile.self.cycles-pp.testcase
      0.11            +0.1        0.20 ±  3%  perf-profile.self.cycles-pp.memset_orig
      0.10 ±  3%      +0.1        0.19 ±  3%  perf-profile.self.cycles-pp.locks_remove_posix
      0.07 ±  6%      +0.1        0.18 ±  3%  perf-profile.self.cycles-pp.build_open_flags
      0.12 ±  3%      +0.1        0.23 ±  5%  perf-profile.self.cycles-pp.path_openat
      0.17 ±  2%      +0.1        0.28 ±  2%  perf-profile.self.cycles-pp.__virt_addr_valid
      0.15 ±  3%      +0.1        0.27 ±  3%  perf-profile.self.cycles-pp.__memcg_slab_post_alloc_hook
      0.14 ±  5%      +0.1        0.26 ±  2%  perf-profile.self.cycles-pp.do_open
      0.16 ±  2%      +0.1        0.30 ±  4%  perf-profile.self.cycles-pp.strncpy_from_user
      0.16 ±  4%      +0.1        0.30 ±  3%  perf-profile.self.cycles-pp.do_filp_open
      0.26 ±  6%      +0.1        0.41 ±  5%  perf-profile.self.cycles-pp.generic_permission
      0.21 ±  4%      +0.2        0.36 ±  7%  perf-profile.self.cycles-pp.step_into
      0.34 ±  8%      +0.2        0.52 ±  4%  perf-profile.self.cycles-pp.__d_lookup_rcu
      0.46 ±  2%      +0.3        0.77 ±  2%  perf-profile.self.cycles-pp.link_path_walk
     12.60            +0.3       12.93        perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
      0.50 ±  3%      +0.3        0.83 ±  3%  perf-profile.self.cycles-pp.kmem_cache_alloc_noprof
      0.42 ±  3%      +0.4        0.78 ±  7%  perf-profile.self.cycles-pp.__close
      3.12            +0.5        3.58 ±  2%  perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
      1.29 ±  2%      +0.5        1.77 ±  3%  perf-profile.self.cycles-pp.entry_SYSCALL_64
      0.57 ±  8%      +0.5        1.10 ±  4%  perf-profile.self.cycles-pp.open64
      0.83 ±  2%      +0.6        1.40 ±  9%  perf-profile.self.cycles-pp.do_dentry_open
      1.16 ±  6%      +0.7        1.85 ±  8%  perf-profile.self.cycles-pp.__fput
      5.64 ±  2%      +1.9        7.56        perf-profile.self.cycles-pp.syscall_return_via_sysret
      3.27 ±  5%      +2.7        5.93 ±  6%  perf-profile.self.cycles-pp.apparmor_current_getsecid_subj
     11.98            +4.8       16.83 ±  2%  perf-profile.self.cycles-pp.apparmor_file_free_security
     14.04            +9.2       23.20        perf-profile.self.cycles-pp.apparmor_file_alloc_security


***************************************************************************************************
lkp-skl-fpga01: 104 threads 2 sockets (Skylake) with 192G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
  gcc-13/performance/x86_64-rhel-8.3/process/100%/debian-12-x86_64-20240206.cgz/lkp-skl-fpga01/open1/will-it-scale

commit: 
  55027e6899 ("Merge tag 'input-for-v6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input")
  22eddbc906 ("apparmor: try to avoid refing the label in apparmor_file_open")

55027e689933ba2e 22eddbc906d2fc507e4a01484e2 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
      0.01 ±  3%      -0.0        0.01        mpstat.cpu.all.soft%
     19.35 ±  2%      +4.0       23.35 ±  3%  mpstat.cpu.all.usr%
     21320            -1.0%      21111        proc-vmstat.nr_kernel_stack
     12782 ±  2%      -7.8%      11784 ±  2%  proc-vmstat.nr_mapped
   4188213 ±  2%     +90.7%    7986330 ±  2%  will-it-scale.104.processes
     40271 ±  2%     +90.7%      76791 ±  2%  will-it-scale.per_process_ops
   4188213 ±  2%     +90.7%    7986330 ±  2%  will-it-scale.workload
      0.16 ± 10%     +18.1%       0.19 ±  6%  sched_debug.cfs_rq:/.h_nr_running.stddev
     86.01 ±  6%     -20.8%      68.12 ± 10%  sched_debug.cfs_rq:/.util_avg.stddev
     25.34 ±  6%     -51.7%      12.24 ±  8%  sched_debug.cpu.clock.stddev
      0.15 ± 11%     +22.0%       0.19 ±  7%  sched_debug.cpu.nr_running.stddev
  4.37e+09 ±  3%     +86.1%  8.131e+09 ±  2%  perf-stat.i.branch-instructions
      1.22 ±  5%      -0.1        1.07 ±  5%  perf-stat.i.branch-miss-rate%
  50836606 ±  2%     +59.8%   81252843 ±  3%  perf-stat.i.branch-misses
      1732            -2.8%       1683        perf-stat.i.context-switches
     12.25 ±  2%     -46.3%       6.58 ±  2%  perf-stat.i.cpi
    144.30           +11.1%     160.37        perf-stat.i.cpu-migrations
  2.28e+10 ±  3%     +86.7%  4.256e+10 ±  2%  perf-stat.i.instructions
      0.09 ±  6%     +74.9%       0.16 ±  4%  perf-stat.i.ipc
      0.92 ± 29%     -54.4%       0.42 ± 39%  perf-stat.overall.MPKI
      1.16            -0.2        1.00        perf-stat.overall.branch-miss-rate%
     12.45 ±  2%     -46.4%       6.67        perf-stat.overall.cpi
      0.08 ±  2%     +86.7%       0.15        perf-stat.overall.ipc
   1676348            -2.2%    1639350        perf-stat.overall.path-length
 4.358e+09 ±  3%     +86.0%  8.105e+09 ±  2%  perf-stat.ps.branch-instructions
  50625012 ±  2%     +59.9%   80948460 ±  2%  perf-stat.ps.branch-misses
      1726            -2.9%       1677        perf-stat.ps.context-switches
    143.46           +11.4%     159.75        perf-stat.ps.cpu-migrations
 2.273e+10 ±  3%     +86.6%  4.242e+10 ±  2%  perf-stat.ps.instructions
 7.021e+12 ±  2%     +86.5%  1.309e+13 ±  2%  perf-stat.total.instructions
     27.80           -22.5        5.26 ± 13%  perf-profile.calltrace.cycles-pp.security_file_open.do_dentry_open.do_open.path_openat.do_filp_open
     27.75           -22.5        5.22 ± 13%  perf-profile.calltrace.cycles-pp.apparmor_file_open.security_file_open.do_dentry_open.do_open.path_openat
     29.25           -21.9        7.33 ±  7%  perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
     34.76           -19.3       15.41 ±  6%  perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
     58.25           -10.5       47.77        perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
     58.34           -10.4       47.93        perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
     58.68           -10.3       48.38        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
     60.03            -9.9       50.17        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64
     52.68            -8.9       43.74 ±  2%  perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64
     52.86            -8.8       44.08 ±  2%  perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
     73.80            -8.6       65.17        perf-profile.calltrace.cycles-pp.open64
      3.29 ±  5%      -2.3        1.02 ± 18%  perf-profile.calltrace.cycles-pp.putname.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      1.30 ±  5%      -0.3        0.97 ±  9%  perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.complete_walk.do_open.path_openat
      1.38 ±  4%      -0.3        1.08 ±  8%  perf-profile.calltrace.cycles-pp.try_to_unlazy.complete_walk.do_open.path_openat.do_filp_open
      1.43 ±  4%      -0.3        1.14 ±  8%  perf-profile.calltrace.cycles-pp.complete_walk.do_open.path_openat.do_filp_open.do_sys_openat2
      0.56 ±  8%      +0.2        0.73 ±  6%  perf-profile.calltrace.cycles-pp.__legitimize_mnt.__legitimize_path.try_to_unlazy.complete_walk.do_open
      3.78 ±  3%      +0.3        4.06 ±  2%  perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.__close
      0.55 ±  3%      +0.4        0.94 ±  3%  perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
      0.63 ±  2%      +0.5        1.09        perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64
      0.85 ±  2%      +0.6        1.49        perf-profile.calltrace.cycles-pp.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      0.87            +0.7        1.53        perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
      3.15 ±  3%      +0.7        3.89        perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.open64
      8.06            +0.7        8.81 ±  4%  perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.open64
      0.00            +0.8        0.76 ±  2%  perf-profile.calltrace.cycles-pp.__check_object_size.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat
      0.00            +0.8        0.78 ±  2%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.open64
      0.00            +0.8        0.81 ±  2%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.__close
      2.30 ±  6%      +1.5        3.80 ± 12%  perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__close
      3.17 ±  4%      +2.5        5.66 ±  9%  perf-profile.calltrace.cycles-pp.apparmor_current_getsecid_subj.security_current_getsecid_subj.ima_file_check.security_file_post_open.do_open
      3.20 ±  4%      +2.5        5.71 ±  9%  perf-profile.calltrace.cycles-pp.security_current_getsecid_subj.ima_file_check.security_file_post_open.do_open.path_openat
      3.52 ±  3%      +2.6        6.11 ±  8%  perf-profile.calltrace.cycles-pp.ima_file_check.security_file_post_open.do_open.path_openat.do_filp_open
      3.55 ±  3%      +2.6        6.16 ±  8%  perf-profile.calltrace.cycles-pp.security_file_post_open.do_open.path_openat.do_filp_open.do_sys_openat2
     12.05            +4.9       16.92 ±  4%  perf-profile.calltrace.cycles-pp.apparmor_file_free_security.security_file_free.__fput.__x64_sys_close.do_syscall_64
     12.09            +4.9       16.98 ±  4%  perf-profile.calltrace.cycles-pp.security_file_free.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
     14.89            +5.7       20.57 ±  2%  perf-profile.calltrace.cycles-pp.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
     18.30            +6.0       24.31        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
     16.42            +6.1       22.51 ±  2%  perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
     15.87            +6.1       22.00 ±  2%  perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
     25.66            +8.4       34.10        perf-profile.calltrace.cycles-pp.__close
     15.06            +8.9       23.97        perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
     14.03            +9.2       23.25        perf-profile.calltrace.cycles-pp.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file.path_openat
     15.78            +9.4       25.16        perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
     14.30            +9.4       23.69        perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open
     27.78           -22.6        5.22 ± 13%  perf-profile.children.cycles-pp.apparmor_file_open
     27.80           -22.5        5.27 ± 13%  perf-profile.children.cycles-pp.security_file_open
     29.26           -21.9        7.35 ±  7%  perf-profile.children.cycles-pp.do_dentry_open
     34.78           -19.3       15.45 ±  6%  perf-profile.children.cycles-pp.do_open
     58.30           -10.5       47.84        perf-profile.children.cycles-pp.do_sys_openat2
     58.36           -10.4       47.95        perf-profile.children.cycles-pp.__x64_sys_openat
     52.72            -8.9       43.80 ±  2%  perf-profile.children.cycles-pp.path_openat
     52.89            -8.8       44.10 ±  2%  perf-profile.children.cycles-pp.do_filp_open
     73.30            -8.0       65.30        perf-profile.children.cycles-pp.open64
     75.66            -4.5       71.18        perf-profile.children.cycles-pp.do_syscall_64
     79.01            -4.2       74.84        perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
      3.29 ±  5%      -2.3        1.02 ± 18%  perf-profile.children.cycles-pp.putname
      0.72 ±  5%      -0.5        0.22 ± 22%  perf-profile.children.cycles-pp.lockref_get_not_dead
      0.81 ± 10%      -0.4        0.37 ± 84%  perf-profile.children.cycles-pp.perf_mmap__push
      0.78 ± 10%      -0.4        0.35 ± 85%  perf-profile.children.cycles-pp.writen
      0.77 ± 10%      -0.4        0.35 ± 84%  perf-profile.children.cycles-pp.record__pushfn
      1.31 ±  5%      -0.3        0.98 ±  9%  perf-profile.children.cycles-pp.__legitimize_path
      1.40 ±  4%      -0.3        1.08 ±  8%  perf-profile.children.cycles-pp.try_to_unlazy
      1.44 ±  4%      -0.3        1.15 ±  8%  perf-profile.children.cycles-pp.complete_walk
      0.46 ±  9%      -0.3        0.20 ± 78%  perf-profile.children.cycles-pp.ksys_write
      0.38 ±  5%      -0.2        0.16 ± 10%  perf-profile.children.cycles-pp.mnt_get_write_access
      0.42 ± 10%      -0.2        0.19 ± 78%  perf-profile.children.cycles-pp.vfs_write
      0.33 ±  9%      -0.2        0.12 ± 86%  perf-profile.children.cycles-pp.shmem_file_write_iter
      0.29 ± 10%      -0.2        0.10 ± 81%  perf-profile.children.cycles-pp.generic_perform_write
      0.32 ± 11%      -0.1        0.25 ±  3%  perf-profile.children.cycles-pp._raw_spin_lock
      0.24            +0.0        0.26 ±  5%  perf-profile.children.cycles-pp.__hrtimer_run_queues
      0.16 ±  8%      +0.0        0.18 ±  4%  perf-profile.children.cycles-pp.update_process_times
      0.18 ±  8%      +0.0        0.21 ±  4%  perf-profile.children.cycles-pp.tick_nohz_handler
      0.08 ±  4%      +0.0        0.11        perf-profile.children.cycles-pp.ima_file_free
      0.13 ±  2%      +0.0        0.17 ±  5%  perf-profile.children.cycles-pp.fd_install
      0.31 ±  4%      +0.0        0.35 ±  2%  perf-profile.children.cycles-pp.alloc_fd
      0.08 ±  6%      +0.0        0.12 ±  4%  perf-profile.children.cycles-pp.set_root
      0.07 ±  9%      +0.0        0.11 ±  6%  perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
      0.11 ±  6%      +0.0        0.16 ±  3%  perf-profile.children.cycles-pp.nd_jump_root
      0.05            +0.0        0.09 ±  5%  perf-profile.children.cycles-pp.security_inode_permission
      0.06 ±  7%      +0.0        0.11 ±  3%  perf-profile.children.cycles-pp.rcu_all_qs
      0.18 ±  5%      +0.0        0.22 ±  4%  perf-profile.children.cycles-pp.path_init
      0.09 ±  9%      +0.0        0.14 ±  8%  perf-profile.children.cycles-pp.mntput_no_expire
      0.06            +0.1        0.11        perf-profile.children.cycles-pp.x64_sys_call
      0.00            +0.1        0.05        perf-profile.children.cycles-pp._find_next_zero_bit
      0.00            +0.1        0.05        perf-profile.children.cycles-pp.dnotify_flush
      0.00            +0.1        0.06 ±  9%  perf-profile.children.cycles-pp.get_unused_fd_flags
      0.00            +0.1        0.06 ±  9%  perf-profile.children.cycles-pp.locks_remove_file
      0.40 ±  4%      +0.1        0.46 ±  7%  perf-profile.children.cycles-pp.__fsnotify_parent
      0.00            +0.1        0.06 ±  6%  perf-profile.children.cycles-pp.check_stack_object
      0.00            +0.1        0.06 ±  9%  perf-profile.children.cycles-pp.path_get
      0.00            +0.1        0.06        perf-profile.children.cycles-pp.should_failslab
      0.07 ±  9%      +0.1        0.13 ± 10%  perf-profile.children.cycles-pp.obj_cgroup_charge
      0.00            +0.1        0.06 ±  7%  perf-profile.children.cycles-pp.make_vfsuid
      0.00            +0.1        0.07 ±  7%  perf-profile.children.cycles-pp.file_ra_state_init
      0.00            +0.1        0.07 ±  7%  perf-profile.children.cycles-pp.getname
      0.02 ±141%      +0.1        0.08 ±  5%  perf-profile.children.cycles-pp.file_close_fd_locked
      0.20 ±  9%      +0.1        0.27 ±  5%  perf-profile.children.cycles-pp.file_close_fd
      0.09 ±  5%      +0.1        0.16 ±  3%  perf-profile.children.cycles-pp.mod_objcg_state
      0.00            +0.1        0.07 ± 10%  perf-profile.children.cycles-pp.refill_obj_stock
      0.10 ±  3%      +0.1        0.17 ±  4%  perf-profile.children.cycles-pp.__lookup_mnt
      0.10 ±  6%      +0.1        0.19 ±  2%  perf-profile.children.cycles-pp.__check_heap_object
      0.15 ±  3%      +0.1        0.24 ±  3%  perf-profile.children.cycles-pp.walk_component
      0.10            +0.1        0.20 ±  2%  perf-profile.children.cycles-pp.locks_remove_posix
      0.12 ±  3%      +0.1        0.22 ±  5%  perf-profile.children.cycles-pp.memset_orig
      0.23 ±  4%      +0.1        0.33        perf-profile.children.cycles-pp.__d_lookup_rcu
      0.19 ±  3%      +0.1        0.30        perf-profile.children.cycles-pp.__virt_addr_valid
      0.24 ±  5%      +0.1        0.34 ± 14%  perf-profile.children.cycles-pp.syscall_exit_to_user_mode
      0.16 ±  3%      +0.1        0.28 ±  3%  perf-profile.children.cycles-pp.__cond_resched
      0.08 ±  6%      +0.1        0.19 ±  4%  perf-profile.children.cycles-pp.build_open_flags
      0.11 ± 19%      +0.1        0.24 ± 11%  perf-profile.children.cycles-pp.testcase
      0.26 ±  3%      +0.1        0.40        perf-profile.children.cycles-pp.lookup_fast
      0.17 ±  6%      +0.2        0.32 ±  3%  perf-profile.children.cycles-pp.generic_permission
      0.22 ±  6%      +0.2        0.38 ±  6%  perf-profile.children.cycles-pp.__memcg_slab_free_hook
      0.30 ±  2%      +0.2        0.46 ±  2%  perf-profile.children.cycles-pp.check_heap_object
      0.17 ±  2%      +0.2        0.33        perf-profile.children.cycles-pp.filp_flush
      0.57 ±  8%      +0.2        0.73 ±  6%  perf-profile.children.cycles-pp.__legitimize_mnt
      0.34 ±  2%      +0.2        0.50 ±  2%  perf-profile.children.cycles-pp.may_open
      0.28 ±  4%      +0.2        0.46 ±  3%  perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
      0.28 ±  2%      +0.2        0.46 ±  2%  perf-profile.children.cycles-pp.step_into
      0.30 ±  2%      +0.2        0.50 ±  2%  perf-profile.children.cycles-pp.open_last_lookups
      0.42            +0.2        0.64        perf-profile.children.cycles-pp.inode_permission
      0.48 ±  2%      +0.3        0.80 ±  2%  perf-profile.children.cycles-pp.__check_object_size
      0.63 ±  2%      +0.5        1.10        perf-profile.children.cycles-pp.strncpy_from_user
      1.41            +0.6        2.01 ±  2%  perf-profile.children.cycles-pp.entry_SYSCALL_64
      0.85 ±  2%      +0.6        1.49        perf-profile.children.cycles-pp.getname_flags
      0.88            +0.7        1.55        perf-profile.children.cycles-pp.link_path_walk
      0.95 ±  2%      +0.7        1.62 ±  2%  perf-profile.children.cycles-pp.kmem_cache_alloc_noprof
      5.56 ±  2%      +2.3        7.82 ±  5%  perf-profile.children.cycles-pp.syscall_return_via_sysret
      3.17 ±  4%      +2.5        5.66 ±  9%  perf-profile.children.cycles-pp.apparmor_current_getsecid_subj
      3.20 ±  4%      +2.5        5.72 ±  9%  perf-profile.children.cycles-pp.security_current_getsecid_subj
      3.53 ±  3%      +2.6        6.12 ±  8%  perf-profile.children.cycles-pp.ima_file_check
      3.56 ±  3%      +2.6        6.16 ±  8%  perf-profile.children.cycles-pp.security_file_post_open
     12.07            +4.9       16.94 ±  4%  perf-profile.children.cycles-pp.apparmor_file_free_security
     12.10            +4.9       16.98 ±  4%  perf-profile.children.cycles-pp.security_file_free
     14.93            +5.7       20.62 ±  2%  perf-profile.children.cycles-pp.__fput
     15.88            +6.1       22.02 ±  2%  perf-profile.children.cycles-pp.__x64_sys_close
     25.75            +8.5       34.26        perf-profile.children.cycles-pp.__close
     15.08            +8.9       24.00        perf-profile.children.cycles-pp.init_file
     14.05            +9.2       23.27        perf-profile.children.cycles-pp.apparmor_file_alloc_security
     14.31            +9.4       23.70        perf-profile.children.cycles-pp.security_file_alloc
     15.80            +9.4       25.19        perf-profile.children.cycles-pp.alloc_empty_file
     27.68           -22.5        5.20 ± 13%  perf-profile.self.cycles-pp.apparmor_file_open
      3.28 ±  5%      -2.3        1.02 ± 18%  perf-profile.self.cycles-pp.putname
      0.72 ±  5%      -0.5        0.22 ± 21%  perf-profile.self.cycles-pp.lockref_get_not_dead
      0.76 ± 10%      -0.5        0.29 ± 21%  perf-profile.self.cycles-pp.init_file
      0.38 ±  5%      -0.2        0.16 ± 10%  perf-profile.self.cycles-pp.mnt_get_write_access
      0.78 ±  9%      -0.2        0.61 ±  7%  perf-profile.self.cycles-pp.kmem_cache_free
      0.32 ± 11%      -0.1        0.24 ±  4%  perf-profile.self.cycles-pp._raw_spin_lock
      0.04 ± 44%      +0.0        0.07 ±  7%  perf-profile.self.cycles-pp.try_to_unlazy
      0.05            +0.0        0.08 ±  6%  perf-profile.self.cycles-pp.dput
      0.08 ±  4%      +0.0        0.11 ±  4%  perf-profile.self.cycles-pp.ima_file_free
      0.10 ±  3%      +0.0        0.13 ±  3%  perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
      0.06 ±  6%      +0.0        0.09 ±  5%  perf-profile.self.cycles-pp.rcu_all_qs
      0.07 ±  7%      +0.0        0.10 ±  7%  perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare
      0.05 ±  8%      +0.0        0.09 ±  5%  perf-profile.self.cycles-pp.security_file_alloc
      0.07 ±  5%      +0.0        0.11 ±  4%  perf-profile.self.cycles-pp.set_root
      0.05            +0.0        0.09 ±  4%  perf-profile.self.cycles-pp.security_inode_permission
      0.06            +0.0        0.10 ±  3%  perf-profile.self.cycles-pp.__x64_sys_openat
      0.10 ±  5%      +0.0        0.14 ±  2%  perf-profile.self.cycles-pp.security_file_release
      0.11 ± 12%      +0.0        0.15 ±  4%  perf-profile.self.cycles-pp.do_sys_openat2
      0.06            +0.0        0.10 ±  4%  perf-profile.self.cycles-pp.check_heap_object
      0.09 ±  9%      +0.0        0.14 ±  7%  perf-profile.self.cycles-pp.mntput_no_expire
      0.06 ±  6%      +0.0        0.10 ±  4%  perf-profile.self.cycles-pp.x64_sys_call
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.dnotify_flush
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.file_close_fd
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.locks_remove_file
      0.23 ±  3%      +0.1        0.28 ±  3%  perf-profile.self.cycles-pp.inode_permission
      0.00            +0.1        0.05 ±  7%  perf-profile.self.cycles-pp.complete_walk
      0.00            +0.1        0.05 ±  7%  perf-profile.self.cycles-pp.get_unused_fd_flags
      0.05 ±  7%      +0.1        0.10 ±  7%  perf-profile.self.cycles-pp.obj_cgroup_charge
      0.00            +0.1        0.05 ±  8%  perf-profile.self.cycles-pp.check_stack_object
      0.40 ±  4%      +0.1        0.45 ±  7%  perf-profile.self.cycles-pp.__fsnotify_parent
      0.00            +0.1        0.06 ±  9%  perf-profile.self.cycles-pp.alloc_empty_file
      0.03 ± 70%      +0.1        0.09 ±  4%  perf-profile.self.cycles-pp.getname_flags
      0.00            +0.1        0.06 ±  9%  perf-profile.self.cycles-pp.security_current_getsecid_subj
      0.08            +0.1        0.14 ±  6%  perf-profile.self.cycles-pp.ima_file_check
      0.02 ± 99%      +0.1        0.08 ±  5%  perf-profile.self.cycles-pp.__x64_sys_close
      0.00            +0.1        0.06        perf-profile.self.cycles-pp.lookup_fast
      0.00            +0.1        0.06        perf-profile.self.cycles-pp.make_vfsuid
      0.10 ±  5%      +0.1        0.16 ±  5%  perf-profile.self.cycles-pp.__cond_resched
      0.10 ±  9%      +0.1        0.17 ±  7%  perf-profile.self.cycles-pp.__memcg_slab_free_hook
      0.13 ±  8%      +0.1        0.19 ± 21%  perf-profile.self.cycles-pp.syscall_exit_to_user_mode
      0.06 ±  6%      +0.1        0.12 ±  4%  perf-profile.self.cycles-pp.__check_object_size
      0.02 ±141%      +0.1        0.08 ±  5%  perf-profile.self.cycles-pp.filp_flush
      0.09 ±  5%      +0.1        0.16 ±  3%  perf-profile.self.cycles-pp.may_open
      0.09 ±  5%      +0.1        0.16 ±  2%  perf-profile.self.cycles-pp.mod_objcg_state
      0.00            +0.1        0.07 ± 10%  perf-profile.self.cycles-pp.refill_obj_stock
      0.09 ±  6%      +0.1        0.16 ±  3%  perf-profile.self.cycles-pp.__lookup_mnt
      0.08 ±  5%      +0.1        0.16 ±  3%  perf-profile.self.cycles-pp.alloc_fd
      0.00            +0.1        0.08 ±  8%  perf-profile.self.cycles-pp.file_close_fd_locked
      0.10 ±  6%      +0.1        0.18 ±  4%  perf-profile.self.cycles-pp.__check_heap_object
      0.09 ±  4%      +0.1        0.18 ±  3%  perf-profile.self.cycles-pp.open_last_lookups
      0.10 ±  4%      +0.1        0.19        perf-profile.self.cycles-pp.locks_remove_posix
      0.17 ±  4%      +0.1        0.26 ±  2%  perf-profile.self.cycles-pp.__memcg_slab_post_alloc_hook
      0.18 ±  5%      +0.1        0.28 ±  3%  perf-profile.self.cycles-pp.do_open
      0.12 ±  4%      +0.1        0.21 ±  5%  perf-profile.self.cycles-pp.memset_orig
      0.22 ±  3%      +0.1        0.32 ±  2%  perf-profile.self.cycles-pp.__d_lookup_rcu
      0.18 ±  3%      +0.1        0.28        perf-profile.self.cycles-pp.__virt_addr_valid
      0.13 ±  4%      +0.1        0.23 ±  6%  perf-profile.self.cycles-pp.path_openat
      0.08 ±  6%      +0.1        0.18 ±  5%  perf-profile.self.cycles-pp.build_open_flags
      0.18 ±  2%      +0.1        0.29        perf-profile.self.cycles-pp.step_into
      0.08 ± 21%      +0.1        0.20 ± 12%  perf-profile.self.cycles-pp.testcase
      0.16 ±  5%      +0.1        0.29 ±  3%  perf-profile.self.cycles-pp.do_filp_open
      0.15 ±  7%      +0.1        0.28 ±  2%  perf-profile.self.cycles-pp.generic_permission
      0.16 ±  4%      +0.1        0.30 ±  3%  perf-profile.self.cycles-pp.strncpy_from_user
      0.56 ±  7%      +0.2        0.72 ±  6%  perf-profile.self.cycles-pp.__legitimize_mnt
      0.30            +0.3        0.55        perf-profile.self.cycles-pp.link_path_walk
      0.43 ±  3%      +0.3        0.73 ± 12%  perf-profile.self.cycles-pp.__close
      0.49            +0.3        0.82 ±  3%  perf-profile.self.cycles-pp.kmem_cache_alloc_noprof
      3.36 ±  3%      +0.3        3.70        perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
      1.23 ±  6%      +0.5        1.70 ±  4%  perf-profile.self.cycles-pp.__fput
      1.28            +0.5        1.77 ±  3%  perf-profile.self.cycles-pp.entry_SYSCALL_64
      0.58 ±  6%      +0.5        1.10 ±  3%  perf-profile.self.cycles-pp.open64
      0.78 ±  5%      +0.6        1.40 ± 10%  perf-profile.self.cycles-pp.do_dentry_open
      5.55 ±  2%      +2.3        7.82 ±  5%  perf-profile.self.cycles-pp.syscall_return_via_sysret
      3.16 ±  4%      +2.5        5.63 ±  9%  perf-profile.self.cycles-pp.apparmor_current_getsecid_subj
     12.02            +4.8       16.87 ±  4%  perf-profile.self.cycles-pp.apparmor_file_free_security
     13.98            +9.2       23.16        perf-profile.self.cycles-pp.apparmor_file_alloc_security





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.


-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki


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