Hello,
kernel test robot noticed a 86.8% improvement of will-it-scale.per_process_ops
on:
commit: f4fee216df7d28b87d1c9cc60bcebfecb51c1a05 ("apparmor: try to avoid
refing the label in apparmor_file_open")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
testcase: will-it-scale
test machine: 104 threads 2 sockets (Skylake) with 192G memory
parameters:
nr_task: 100%
mode: process
test: open1
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 89.9%
improvement |
| test machine | 104 threads 2 sockets (Skylake) with 192G memory
|
| test parameters | cpufreq_governor=performance
|
| | mode=process
|
| | nr_task=100%
|
| | test=open2
|
+------------------+----------------------------------------------------------------+
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240806/202408061645.8512e812-oliver.s...@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/open1/will-it-scale
commit:
4b954a0255 ("apparmor: test: add MODULE_DESCRIPTION()")
f4fee216df ("apparmor: try to avoid refing the label in apparmor_file_open")
4b954a025591a1c7 f4fee216df7d28b87d1c9cc60bc
---------------- ---------------------------
%stddev %change %stddev
\ | \
49428 ± 2% -9.4% 44773 ± 2% meminfo.Mapped
2267 ± 12% +30.8% 2964 ± 13% perf-c2c.DRAM.remote
1799 -3.4% 1738 vmstat.system.cs
0.01 ± 2% -0.0 0.01 ± 4% mpstat.cpu.all.soft%
19.91 ± 2% +3.6 23.53 mpstat.cpu.all.usr%
12598 ± 2% -8.3% 11556 ± 2% proc-vmstat.nr_mapped
942044 +2.1% 961357 proc-vmstat.pgfault
44166 ± 4% +5.9% 46785 ± 2% proc-vmstat.pgreuse
4223977 +86.8% 7890649 ± 2% will-it-scale.104.processes
40614 +86.8% 75871 ± 2% will-it-scale.per_process_ops
4223977 +86.8% 7890649 ± 2% will-it-scale.workload
664.33 ± 8% +15.3% 765.83 ± 4% sched_debug.cfs_rq:/.util_avg.min
26.25 ± 13% -54.7% 11.90 ± 9% sched_debug.cpu.clock.stddev
6473 ± 13% +15.7% 7491 sched_debug.cpu.curr->pid.max
2733 ± 3% -9.9% 2464 ± 6% sched_debug.cpu.curr->pid.min
15464 ± 6% +21.8% 18838 ± 15% sched_debug.cpu.nr_switches.max
1.15 ± 15% -53.2% 0.54 ± 25% perf-stat.i.MPKI
4.422e+09 +81.8% 8.04e+09 ± 2% perf-stat.i.branch-instructions
1.37 -0.2 1.21 perf-stat.i.branch-miss-rate%
60833526 +59.7% 97142743 perf-stat.i.branch-misses
1735 -2.5% 1692 perf-stat.i.context-switches
12.32 -45.3% 6.74 ± 2% perf-stat.i.cpi
147.73 +9.5% 161.82 perf-stat.i.cpu-migrations
2.352e+10 +82.6% 4.294e+10 ± 2% perf-stat.i.instructions
0.08 +81.1% 0.15 ± 2% perf-stat.i.ipc
2911 +2.4% 2980 perf-stat.i.minor-faults
2911 +2.4% 2980 perf-stat.i.page-faults
1.15 ± 15% -53.3% 0.54 ± 25% perf-stat.overall.MPKI
1.37 -0.2 1.21
perf-stat.overall.branch-miss-rate%
12.31 -45.2% 6.75 ± 2% perf-stat.overall.cpi
0.08 +82.5% 0.15 ± 2% perf-stat.overall.ipc
1678007 -2.3% 1640017 perf-stat.overall.path-length
4.406e+09 +81.8% 8.011e+09 ± 2% perf-stat.ps.branch-instructions
60541777 +59.8% 96742204 ± 2% perf-stat.ps.branch-misses
1728 -2.5% 1684 perf-stat.ps.context-switches
146.56 +9.9% 161.12 perf-stat.ps.cpu-migrations
2.344e+10 +82.5% 4.278e+10 ± 2% perf-stat.ps.instructions
2908 +2.1% 2968 perf-stat.ps.minor-faults
2908 +2.1% 2968 perf-stat.ps.page-faults
7.088e+12 +82.6% 1.294e+13 ± 2% perf-stat.total.instructions
27.50 -22.0 5.50 ± 8%
perf-profile.calltrace.cycles-pp.security_file_open.do_dentry_open.do_open.path_openat.do_filp_open
27.44 -22.0 5.45 ± 8%
perf-profile.calltrace.cycles-pp.apparmor_file_open.security_file_open.do_dentry_open.do_open.path_openat
29.31 -21.9 7.44 ± 5%
perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
34.77 -19.0 15.76 ± 4%
perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
57.64 -10.0 47.68
perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
57.75 -9.9 47.86
perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
58.02 -9.7 48.28
perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
59.64 -9.6 50.01
perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64
53.06 -8.6 44.46
perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64
73.77 -8.6 65.21
perf-profile.calltrace.cycles-pp.open64
53.26 -8.5 44.81
perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.79 ± 2% -0.4 0.36 ± 70%
perf-profile.calltrace.cycles-pp.terminate_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.61 +0.3 0.95 ± 2%
perf-profile.calltrace.cycles-pp.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
0.44 ± 45% +0.3 0.79 ± 19%
perf-profile.calltrace.cycles-pp.__legitimize_mnt.__legitimize_path.try_to_unlazy.complete_walk.do_open
0.54 +0.4 0.90 ± 2%
perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64
0.00 +0.5 0.55 ± 2%
perf-profile.calltrace.cycles-pp.kmem_cache_free.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.76 +0.6 1.33 ± 3%
perf-profile.calltrace.cycles-pp.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.6 0.58 ± 3%
perf-profile.calltrace.cycles-pp.__check_object_size.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat
0.92 +0.6 1.55 ± 2%
perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.36 ± 70% +0.8 1.13 ± 12%
perf-profile.calltrace.cycles-pp.dput.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.8 0.79 ± 2%
perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.open64
0.00 +0.8 0.84 ± 3%
perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.__close
8.20 +0.9 9.10 ± 3%
perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.open64
0.09 ±223% +1.0 1.09 ± 13%
perf-profile.calltrace.cycles-pp.lockref_put_return.dput.__fput.__x64_sys_close.do_syscall_64
2.10 ± 3% +1.9 4.03 ± 4%
perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__close
3.34 ± 6% +2.6 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
3.36 ± 6% +2.6 5.98 ± 6%
perf-profile.calltrace.cycles-pp.security_current_getsecid_subj.ima_file_check.security_file_post_open.do_open.path_openat
3.68 ± 5% +2.7 6.35 ± 6%
perf-profile.calltrace.cycles-pp.ima_file_check.security_file_post_open.do_open.path_openat.do_filp_open
3.72 ± 5% +2.7 6.44 ± 6%
perf-profile.calltrace.cycles-pp.security_file_post_open.do_open.path_openat.do_filp_open.do_sys_openat2
12.08 +4.1 16.20 ± 3%
perf-profile.calltrace.cycles-pp.security_file_free.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
12.04 +4.1 16.16 ± 3%
perf-profile.calltrace.cycles-pp.apparmor_file_free_security.security_file_free.__fput.__x64_sys_close.do_syscall_64
15.12 ± 2% +5.5 20.61 ± 2%
perf-profile.calltrace.cycles-pp.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
18.55 +5.8 24.32
perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
16.03 +6.0 22.03 ± 2%
perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
16.49 +6.1 22.56 ± 2%
perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
25.42 +8.4 33.82
perf-profile.calltrace.cycles-pp.__close
15.22 +9.3 24.54
perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
14.20 +9.7 23.86
perf-profile.calltrace.cycles-pp.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file.path_openat
16.01 +9.8 25.77
perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
14.48 +9.8 24.32
perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open
27.46 -22.0 5.45 ± 8%
perf-profile.children.cycles-pp.apparmor_file_open
27.50 -22.0 5.51 ± 8%
perf-profile.children.cycles-pp.security_file_open
29.32 -21.9 7.46 ± 5%
perf-profile.children.cycles-pp.do_dentry_open
34.79 -19.0 15.79 ± 4%
perf-profile.children.cycles-pp.do_open
57.70 -10.0 47.75
perf-profile.children.cycles-pp.do_sys_openat2
57.78 -9.9 47.89
perf-profile.children.cycles-pp.__x64_sys_openat
53.11 -8.6 44.52
perf-profile.children.cycles-pp.path_openat
53.29 -8.5 44.83
perf-profile.children.cycles-pp.do_filp_open
73.40 -8.1 65.34
perf-profile.children.cycles-pp.open64
78.94 -4.1 74.80
perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
75.12 -3.9 71.21
perf-profile.children.cycles-pp.do_syscall_64
2.63 ± 11% -2.2 0.44 ± 18%
perf-profile.children.cycles-pp.putname
0.56 ± 11% -0.4 0.14 ± 8%
perf-profile.children.cycles-pp.lockref_get_not_dead
0.48 ± 17% -0.4 0.12 ± 5%
perf-profile.children.cycles-pp.mnt_get_write_access
0.80 ± 2% -0.3 0.53 ± 5%
perf-profile.children.cycles-pp.terminate_walk
0.35 ± 5% -0.2 0.17 ± 60%
perf-profile.children.cycles-pp.shmem_file_write_iter
0.30 ± 6% -0.2 0.14 ± 70%
perf-profile.children.cycles-pp.generic_perform_write
0.15 ± 8% -0.1 0.06 ±102%
perf-profile.children.cycles-pp.shmem_get_folio_gfp
0.15 ± 8% -0.1 0.06 ±102%
perf-profile.children.cycles-pp.shmem_write_begin
0.10 ± 5% -0.0 0.08 ± 4%
perf-profile.children.cycles-pp.lockref_get
0.29 ± 2% +0.0 0.30
perf-profile.children.cycles-pp.hrtimer_interrupt
0.24 ± 2% +0.0 0.26 ± 2%
perf-profile.children.cycles-pp.__hrtimer_run_queues
0.18 ± 2% +0.0 0.20 ± 2%
perf-profile.children.cycles-pp.tick_nohz_handler
0.08 ± 5% +0.0 0.11 ± 4%
perf-profile.children.cycles-pp.ima_file_free
0.09 ± 7% +0.0 0.12 ± 9%
perf-profile.children.cycles-pp.obj_cgroup_charge
0.09 ± 7% +0.0 0.12 ± 4%
perf-profile.children.cycles-pp.set_root
0.03 ± 70% +0.0 0.07 ± 12%
perf-profile.children.cycles-pp.make_vfsuid
0.04 ± 44% +0.0 0.08
perf-profile.children.cycles-pp.rcu_all_qs
0.12 ± 4% +0.0 0.16 ± 4%
perf-profile.children.cycles-pp.nd_jump_root
0.05 ± 7% +0.0 0.09 ± 5%
perf-profile.children.cycles-pp.security_inode_permission
0.03 ± 70% +0.0 0.08
perf-profile.children.cycles-pp.file_ra_state_init
0.10 ± 6% +0.0 0.15 ± 2%
perf-profile.children.cycles-pp.__lookup_mnt
0.14 ± 6% +0.0 0.18 ± 5%
perf-profile.children.cycles-pp.fd_install
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.expand_files
0.00 +0.1 0.06 ± 9%
perf-profile.children.cycles-pp.path_get
0.06 ± 7% +0.1 0.12 ± 7%
perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
0.00 +0.1 0.06 ± 6%
perf-profile.children.cycles-pp.current_obj_cgroup
0.00 +0.1 0.06
perf-profile.children.cycles-pp.get_unused_fd_flags
0.00 +0.1 0.06
perf-profile.children.cycles-pp.locks_remove_file
0.18 ± 3% +0.1 0.25 ± 2%
perf-profile.children.cycles-pp.file_close_fd
0.00 +0.1 0.07 ± 7%
perf-profile.children.cycles-pp.getname
0.10 ± 5% +0.1 0.16 ± 2%
perf-profile.children.cycles-pp.mod_objcg_state
0.08 ± 4% +0.1 0.15 ± 3%
perf-profile.children.cycles-pp.__check_heap_object
0.00 +0.1 0.07 ± 10%
perf-profile.children.cycles-pp.refill_obj_stock
0.16 ± 2% +0.1 0.23 ± 5%
perf-profile.children.cycles-pp.path_init
0.00 +0.1 0.07
perf-profile.children.cycles-pp.dnotify_flush
0.00 +0.1 0.07 ± 5%
perf-profile.children.cycles-pp.file_close_fd_locked
0.17 ± 3% +0.1 0.24 ± 3%
perf-profile.children.cycles-pp.__virt_addr_valid
0.80 ± 4% +0.1 0.88 ± 2%
perf-profile.children.cycles-pp.kmem_cache_free
0.10 ± 4% +0.1 0.18 ± 2%
perf-profile.children.cycles-pp.memset_orig
0.00 +0.1 0.08
perf-profile.children.cycles-pp.should_failslab
0.16 ± 2% +0.1 0.26 ± 4%
perf-profile.children.cycles-pp.walk_component
0.10 ± 3% +0.1 0.20 ± 2%
perf-profile.children.cycles-pp.locks_remove_posix
0.26 +0.1 0.36 ± 2%
perf-profile.children.cycles-pp.alloc_fd
0.25 ± 5% +0.1 0.35 ± 4%
perf-profile.children.cycles-pp.__d_lookup_rcu
0.08 ± 4% +0.1 0.18 ± 2%
perf-profile.children.cycles-pp.build_open_flags
0.24 ± 3% +0.1 0.36 ± 2%
perf-profile.children.cycles-pp.check_heap_object
0.29 ± 4% +0.1 0.41 ± 3%
perf-profile.children.cycles-pp.lookup_fast
0.17 +0.1 0.30 ± 2%
perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
0.18 ± 5% +0.1 0.31 ± 2%
perf-profile.children.cycles-pp.__cond_resched
0.30 ± 4% +0.1 0.44
perf-profile.children.cycles-pp.open_last_lookups
0.24 ± 5% +0.2 0.39 ± 6%
perf-profile.children.cycles-pp.__memcg_slab_free_hook
0.22 ± 4% +0.2 0.37 ± 5%
perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.25 +0.2 0.41 ± 2%
perf-profile.children.cycles-pp.step_into
0.18 ± 17% +0.2 0.34 ± 14%
perf-profile.children.cycles-pp.testcase
0.21 ± 2% +0.2 0.38 ± 4%
perf-profile.children.cycles-pp.generic_permission
0.17 ± 2% +0.2 0.33 ± 3%
perf-profile.children.cycles-pp.filp_flush
0.33 ± 2% +0.2 0.53 ± 3%
perf-profile.children.cycles-pp.may_open
0.39 +0.2 0.62 ± 2%
perf-profile.children.cycles-pp.__check_object_size
0.53 ± 5% +0.3 0.79 ± 19%
perf-profile.children.cycles-pp.__legitimize_mnt
0.44 ± 2% +0.3 0.71 ± 4%
perf-profile.children.cycles-pp.inode_permission
1.06 ± 9% +0.3 1.36 ± 9%
perf-profile.children.cycles-pp.lockref_put_return
1.18 ± 8% +0.3 1.53 ± 8%
perf-profile.children.cycles-pp.dput
0.54 +0.4 0.91 ± 2%
perf-profile.children.cycles-pp.strncpy_from_user
0.76 +0.6 1.34 ± 3%
perf-profile.children.cycles-pp.getname_flags
0.93 +0.6 1.56 ± 3%
perf-profile.children.cycles-pp.link_path_walk
1.01 +0.7 1.68
perf-profile.children.cycles-pp.kmem_cache_alloc
1.36 ± 2% +0.7 2.03 ± 2%
perf-profile.children.cycles-pp.entry_SYSCALL_64
5.83 ± 4% +2.1 7.96 ± 3%
perf-profile.children.cycles-pp.syscall_return_via_sysret
3.35 ± 6% +2.6 5.96 ± 6%
perf-profile.children.cycles-pp.apparmor_current_getsecid_subj
3.37 ± 6% +2.6 5.98 ± 6%
perf-profile.children.cycles-pp.security_current_getsecid_subj
3.69 ± 5% +2.7 6.36 ± 6%
perf-profile.children.cycles-pp.ima_file_check
3.73 ± 5% +2.7 6.45 ± 6%
perf-profile.children.cycles-pp.security_file_post_open
12.09 +4.1 16.21 ± 3%
perf-profile.children.cycles-pp.security_file_free
12.06 +4.1 16.18 ± 3%
perf-profile.children.cycles-pp.apparmor_file_free_security
15.16 ± 2% +5.5 20.67 ± 2%
perf-profile.children.cycles-pp.__fput
16.04 +6.0 22.04 ± 2%
perf-profile.children.cycles-pp.__x64_sys_close
25.52 +8.5 34.00
perf-profile.children.cycles-pp.__close
15.24 +9.3 24.58
perf-profile.children.cycles-pp.init_file
14.22 +9.7 23.88
perf-profile.children.cycles-pp.apparmor_file_alloc_security
16.03 +9.8 25.80
perf-profile.children.cycles-pp.alloc_empty_file
14.48 +9.8 24.33
perf-profile.children.cycles-pp.security_file_alloc
27.37 -21.9 5.43 ± 8%
perf-profile.self.cycles-pp.apparmor_file_open
2.62 ± 11% -2.2 0.44 ± 18%
perf-profile.self.cycles-pp.putname
0.74 ± 20% -0.5 0.22 ± 34%
perf-profile.self.cycles-pp.init_file
0.56 ± 11% -0.4 0.13 ± 8%
perf-profile.self.cycles-pp.lockref_get_not_dead
0.48 ± 17% -0.4 0.12 ± 5%
perf-profile.self.cycles-pp.mnt_get_write_access
3.89 ± 2% -0.2 3.64
perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.56 ± 5% -0.1 0.49 ± 3%
perf-profile.self.cycles-pp.kmem_cache_free
0.25 -0.0 0.23 ± 3%
perf-profile.self.cycles-pp._raw_spin_lock
0.10 ± 5% -0.0 0.08 ± 4%
perf-profile.self.cycles-pp.lockref_get
0.06 ± 13% +0.0 0.08 ± 6% perf-profile.self.cycles-pp.dput
0.05 +0.0 0.07 ± 8%
perf-profile.self.cycles-pp.path_init
0.08 ± 5% +0.0 0.10 ± 4%
perf-profile.self.cycles-pp.ima_file_free
0.13 ± 8% +0.0 0.15
perf-profile.self.cycles-pp.do_sys_openat2
0.07 ± 5% +0.0 0.09 ± 7%
perf-profile.self.cycles-pp.obj_cgroup_charge
0.08 ± 8% +0.0 0.12 ± 6%
perf-profile.self.cycles-pp.set_root
0.09 ± 6% +0.0 0.12 ± 4%
perf-profile.self.cycles-pp.security_file_release
0.06 ± 7% +0.0 0.10 ± 5%
perf-profile.self.cycles-pp.check_heap_object
0.06 ± 6% +0.0 0.10 ± 5%
perf-profile.self.cycles-pp.security_file_alloc
0.05 +0.0 0.09 ± 6%
perf-profile.self.cycles-pp.security_inode_permission
0.13 ± 6% +0.0 0.17 ± 5%
perf-profile.self.cycles-pp.fd_install
0.10 ± 6% +0.0 0.14 ± 2%
perf-profile.self.cycles-pp.__lookup_mnt
0.08 ± 6% +0.0 0.12 ± 3%
perf-profile.self.cycles-pp.open_last_lookups
0.00 +0.1 0.05
perf-profile.self.cycles-pp.current_obj_cgroup
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_file_open
0.08 ± 6% +0.1 0.13 ± 2%
perf-profile.self.cycles-pp.ima_file_check
0.06 +0.1 0.11 ± 8%
perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare
0.00 +0.1 0.06 ± 9%
perf-profile.self.cycles-pp.get_unused_fd_flags
0.01 ±223% +0.1 0.06 ± 7%
perf-profile.self.cycles-pp.lookup_fast
0.00 +0.1 0.06 ± 8%
perf-profile.self.cycles-pp.try_to_unlazy
0.08 ± 4% +0.1 0.14 ± 4%
perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.06 ± 8% +0.1 0.12 ± 4%
perf-profile.self.cycles-pp.getname_flags
0.08 ± 4% +0.1 0.14 ± 4%
perf-profile.self.cycles-pp.__x64_sys_openat
0.19 ± 3% +0.1 0.25
perf-profile.self.cycles-pp.do_open
0.00 +0.1 0.06 ± 6%
perf-profile.self.cycles-pp.terminate_walk
0.08 ± 4% +0.1 0.14 ± 4%
perf-profile.self.cycles-pp.__x64_sys_close
0.02 ± 99% +0.1 0.09 ± 6%
perf-profile.self.cycles-pp.__check_object_size
0.00 +0.1 0.06 ± 11%
perf-profile.self.cycles-pp.make_vfsuid
0.10 ± 5% +0.1 0.16 ± 2%
perf-profile.self.cycles-pp.mod_objcg_state
0.00 +0.1 0.07 ± 7%
perf-profile.self.cycles-pp.alloc_empty_file
0.00 +0.1 0.07 ± 7%
perf-profile.self.cycles-pp.dnotify_flush
0.00 +0.1 0.07 ± 7%
perf-profile.self.cycles-pp.rcu_all_qs
0.00 +0.1 0.07 ± 7%
perf-profile.self.cycles-pp.refill_obj_stock
0.16 ± 3% +0.1 0.22 ± 3%
perf-profile.self.cycles-pp.__virt_addr_valid
0.08 +0.1 0.15 ± 4%
perf-profile.self.cycles-pp.__check_heap_object
0.00 +0.1 0.07
perf-profile.self.cycles-pp.file_close_fd_locked
0.00 +0.1 0.07 ± 5%
perf-profile.self.cycles-pp.filp_flush
0.45 ± 7% +0.1 0.52 ± 4%
perf-profile.self.cycles-pp.do_syscall_64
0.11 ± 11% +0.1 0.18 ± 7%
perf-profile.self.cycles-pp.__memcg_slab_free_hook
0.10 ± 4% +0.1 0.18 ± 2%
perf-profile.self.cycles-pp.memset_orig
0.09 ± 5% +0.1 0.16 ± 4%
perf-profile.self.cycles-pp.may_open
0.12 ± 4% +0.1 0.20 ± 2%
perf-profile.self.cycles-pp.path_openat
0.09 ± 4% +0.1 0.17 ± 4%
perf-profile.self.cycles-pp.alloc_fd
0.00 +0.1 0.08 ± 13%
perf-profile.self.cycles-pp.security_file_post_open
0.20 ± 3% +0.1 0.29 ± 3%
perf-profile.self.cycles-pp.inode_permission
0.10 +0.1 0.19 ± 4%
perf-profile.self.cycles-pp.locks_remove_posix
0.12 ± 7% +0.1 0.21 ± 6%
perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.24 ± 5% +0.1 0.34 ± 4%
perf-profile.self.cycles-pp.__d_lookup_rcu
0.13 ± 2% +0.1 0.23
perf-profile.self.cycles-pp.__memcg_slab_post_alloc_hook
0.08 ± 4% +0.1 0.18 ± 3%
perf-profile.self.cycles-pp.build_open_flags
0.12 ± 5% +0.1 0.23 ± 2%
perf-profile.self.cycles-pp.__cond_resched
0.15 +0.1 0.26
perf-profile.self.cycles-pp.step_into
0.14 ± 18% +0.1 0.28 ± 15%
perf-profile.self.cycles-pp.testcase
0.17 ± 2% +0.1 0.31 ± 3%
perf-profile.self.cycles-pp.do_filp_open
0.16 ± 3% +0.1 0.29 ± 3%
perf-profile.self.cycles-pp.strncpy_from_user
0.18 ± 2% +0.1 0.32 ± 4%
perf-profile.self.cycles-pp.generic_permission
0.32 ± 2% +0.2 0.55 ± 2%
perf-profile.self.cycles-pp.link_path_walk
0.53 ± 5% +0.2 0.78 ± 19%
perf-profile.self.cycles-pp.__legitimize_mnt
0.83 ± 3% +0.3 1.12 ± 6%
perf-profile.self.cycles-pp.do_dentry_open
1.04 ± 9% +0.3 1.33 ± 9%
perf-profile.self.cycles-pp.lockref_put_return
0.31 ± 4% +0.3 0.62 ± 6%
perf-profile.self.cycles-pp.__close
0.55 ± 3% +0.3 0.88 ± 2%
perf-profile.self.cycles-pp.kmem_cache_alloc
1.26 ± 13% +0.5 1.79 ± 8% perf-profile.self.cycles-pp.__fput
1.22 ± 2% +0.6 1.79 ± 2%
perf-profile.self.cycles-pp.entry_SYSCALL_64
0.54 ± 2% +0.6 1.14 ± 3% perf-profile.self.cycles-pp.open64
5.82 ± 4% +2.1 7.95 ± 3%
perf-profile.self.cycles-pp.syscall_return_via_sysret
3.34 ± 6% +2.6 5.93 ± 6%
perf-profile.self.cycles-pp.apparmor_current_getsecid_subj
12.02 +4.1 16.12 ± 3%
perf-profile.self.cycles-pp.apparmor_file_free_security
14.16 +9.6 23.77
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/open2/will-it-scale
commit:
4b954a0255 ("apparmor: test: add MODULE_DESCRIPTION()")
f4fee216df ("apparmor: try to avoid refing the label in apparmor_file_open")
4b954a025591a1c7 f4fee216df7d28b87d1c9cc60bc
---------------- ---------------------------
%stddev %change %stddev
\ | \
249.33 ± 6% -17.6% 205.50 ± 5% perf-c2c.DRAM.local
0.01 ± 3% -0.0 0.01 ± 2% mpstat.cpu.all.soft%
20.98 +2.5 23.51 mpstat.cpu.all.usr%
12601 -7.4% 11670 ± 2% proc-vmstat.nr_mapped
942394 +1.1% 952552 proc-vmstat.pgfault
4247367 ± 2% +89.9% 8065531 ± 2% will-it-scale.104.processes
40839 ± 2% +89.9% 77552 ± 2% will-it-scale.per_process_ops
4247367 ± 2% +89.9% 8065531 ± 2% will-it-scale.workload
0.17 ± 7% +14.1% 0.19 ± 5%
sched_debug.cfs_rq:/.h_nr_running.stddev
661.83 ± 6% +17.8% 779.44 ± 5% sched_debug.cfs_rq:/.util_avg.min
83.36 ± 9% -20.2% 66.48 ± 6%
sched_debug.cfs_rq:/.util_avg.stddev
28.08 ± 21% -56.2% 12.28 ± 10% sched_debug.cpu.clock.stddev
6766 ± 7% +10.1% 7453 sched_debug.cpu.curr->pid.max
479.21 ± 8% +18.6% 568.35 ± 4% sched_debug.cpu.curr->pid.stddev
0.16 ± 6% +19.2% 0.19 ± 4% sched_debug.cpu.nr_running.stddev
4.727e+09 +85.0% 8.745e+09 ± 2% perf-stat.i.branch-instructions
1.30 -0.1 1.16 perf-stat.i.branch-miss-rate%
61798172 +63.6% 1.011e+08 perf-stat.i.branch-misses
51989930 ± 3% +36.8% 71137035 ± 16% perf-stat.i.cache-references
1736 -2.5% 1693 perf-stat.i.context-switches
11.45 -46.3% 6.15 ± 2% perf-stat.i.cpi
147.02 +10.4% 162.36 perf-stat.i.cpu-migrations
2.531e+10 +85.8% 4.701e+10 ± 2% perf-stat.i.instructions
0.09 +83.2% 0.17 ± 2% perf-stat.i.ipc
2914 +1.6% 2961 perf-stat.i.minor-faults
2914 +1.6% 2961 perf-stat.i.page-faults
1.31 -0.2 1.16
perf-stat.overall.branch-miss-rate%
11.45 -46.2% 6.16 ± 2% perf-stat.overall.cpi
0.09 +85.8% 0.16 ± 2% perf-stat.overall.ipc
1793538 -2.0% 1757241 perf-stat.overall.path-length
4.708e+09 +85.1% 8.715e+09 ± 2% perf-stat.ps.branch-instructions
61472201 +63.8% 1.007e+08 perf-stat.ps.branch-misses
51839476 ± 3% +36.8% 70941593 ± 16% perf-stat.ps.cache-references
1727 -2.3% 1687 perf-stat.ps.context-switches
146.09 +10.7% 161.70 perf-stat.ps.cpu-migrations
2.521e+10 +85.8% 4.684e+10 ± 2% perf-stat.ps.instructions
2904 +1.5% 2949 perf-stat.ps.minor-faults
2905 +1.5% 2950 perf-stat.ps.page-faults
7.618e+12 +86.1% 1.417e+13 ± 2% perf-stat.total.instructions
27.03 -21.5 5.50 ± 8%
perf-profile.calltrace.cycles-pp.security_file_open.do_dentry_open.do_open.path_openat.do_filp_open
26.97 -21.5 5.45 ± 8%
perf-profile.calltrace.cycles-pp.apparmor_file_open.security_file_open.do_dentry_open.do_open.path_openat
28.84 -21.5 7.36 ± 5%
perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
34.03 -18.5 15.56 ± 4%
perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
56.98 -8.7 48.26
perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
57.10 -8.6 48.46
perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
57.38 -8.5 48.87
perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
58.68 -8.1 50.56
perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64
52.91 -7.8 45.09
perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64
53.11 -7.7 45.46
perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
73.53 -7.5 66.00
perf-profile.calltrace.cycles-pp.open64
4.26 ± 2% -0.6 3.69
perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.open64
1.41 ± 3% -0.5 0.88 ± 9%
perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.complete_walk.do_open.path_openat
1.46 ± 3% -0.5 0.96 ± 8%
perf-profile.calltrace.cycles-pp.try_to_unlazy.complete_walk.do_open.path_openat.do_filp_open
1.48 ± 3% -0.5 1.00 ± 8%
perf-profile.calltrace.cycles-pp.complete_walk.do_open.path_openat.do_filp_open.do_sys_openat2
3.87 -0.3 3.53 ± 2%
perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.__close
0.64 +0.3 0.97 ± 2%
perf-profile.calltrace.cycles-pp.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
0.57 ± 3% +0.4 0.93 ± 2%
perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64
0.18 ±141% +0.5 0.68 ± 7%
perf-profile.calltrace.cycles-pp.security_file_release.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.5 0.52
perf-profile.calltrace.cycles-pp.walk_component.link_path_walk.path_openat.do_filp_open.do_sys_openat2
0.00 +0.5 0.54 ± 3%
perf-profile.calltrace.cycles-pp.may_open.do_open.path_openat.do_filp_open.do_sys_openat2
0.00 +0.6 0.55 ± 3%
perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_openat.do_filp_open.do_sys_openat2
0.00 +0.6 0.55 ± 3%
perf-profile.calltrace.cycles-pp.kmem_cache_free.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.81 ± 3% +0.6 1.38 ± 2%
perf-profile.calltrace.cycles-pp.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.6 0.60 ± 3%
perf-profile.calltrace.cycles-pp.__check_object_size.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat
1.57 +0.8 2.37 ± 2%
perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.00 +0.8 0.82 ± 2%
perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.open64
0.00 +0.9 0.86 ± 2%
perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.__close
0.08 ±223% +0.9 1.00 ± 10%
perf-profile.calltrace.cycles-pp.dput.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.9 0.94 ± 11%
perf-profile.calltrace.cycles-pp.lockref_put_return.dput.__fput.__x64_sys_close.do_syscall_64
8.24 +1.1 9.34 ± 3%
perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.open64
2.09 +1.8 3.88
perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__close
2.83 ± 4% +3.1 5.89 ± 7%
perf-profile.calltrace.cycles-pp.apparmor_current_getsecid_subj.security_current_getsecid_subj.ima_file_check.security_file_post_open.do_open
2.85 ± 4% +3.1 5.92 ± 7%
perf-profile.calltrace.cycles-pp.security_current_getsecid_subj.ima_file_check.security_file_post_open.do_open.path_openat
3.16 ± 3% +3.1 6.30 ± 6%
perf-profile.calltrace.cycles-pp.ima_file_check.security_file_post_open.do_open.path_openat.do_filp_open
3.21 ± 3% +3.2 6.38 ± 6%
perf-profile.calltrace.cycles-pp.security_file_post_open.do_open.path_openat.do_filp_open.do_sys_openat2
12.29 +3.9 16.23 ± 2%
perf-profile.calltrace.cycles-pp.apparmor_file_free_security.security_file_free.__fput.__x64_sys_close.do_syscall_64
12.33 +3.9 16.28
perf-profile.calltrace.cycles-pp.security_file_free.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
14.97 +5.1 20.09 ± 2%
perf-profile.calltrace.cycles-pp.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
18.63 +5.2 23.85 ± 2%
perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
15.87 +5.7 21.59 ± 2%
perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
16.37 +5.7 22.09 ± 2%
perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
25.79 +7.4 33.19
perf-profile.calltrace.cycles-pp.__close
15.19 +9.4 24.56
perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
14.22 +9.7 23.89
perf-profile.calltrace.cycles-pp.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file.path_openat
16.02 +9.8 25.81
perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
14.51 +9.9 24.36
perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open
26.99 -21.5 5.45 ± 8%
perf-profile.children.cycles-pp.apparmor_file_open
27.04 -21.5 5.50 ± 8%
perf-profile.children.cycles-pp.security_file_open
28.86 -21.5 7.38 ± 5%
perf-profile.children.cycles-pp.do_dentry_open
34.05 -18.5 15.60 ± 4%
perf-profile.children.cycles-pp.do_open
57.04 -8.7 48.33
perf-profile.children.cycles-pp.do_sys_openat2
57.12 -8.6 48.48
perf-profile.children.cycles-pp.__x64_sys_openat
52.96 -7.8 45.15
perf-profile.children.cycles-pp.path_openat
53.13 -7.7 45.48
perf-profile.children.cycles-pp.do_filp_open
73.15 -7.0 66.14
perf-profile.children.cycles-pp.open64
78.00 -3.3 74.75
perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
74.31 -3.1 71.23
perf-profile.children.cycles-pp.do_syscall_64
2.09 ± 4% -1.8 0.28 ± 13%
perf-profile.children.cycles-pp.putname
0.76 ± 11% -0.6 0.12 ± 6%
perf-profile.children.cycles-pp.lockref_get_not_dead
1.42 ± 3% -0.5 0.88 ± 9%
perf-profile.children.cycles-pp.__legitimize_path
1.46 ± 3% -0.5 0.97 ± 8%
perf-profile.children.cycles-pp.try_to_unlazy
1.48 ± 3% -0.5 1.01 ± 8%
perf-profile.children.cycles-pp.complete_walk
0.40 ± 14% -0.3 0.11 ± 3%
perf-profile.children.cycles-pp.mnt_get_write_access
0.77 ± 3% -0.3 0.50 ± 5%
perf-profile.children.cycles-pp.terminate_walk
0.33 ± 8% -0.2 0.11 ± 67%
perf-profile.children.cycles-pp.shmem_file_write_iter
0.29 ± 6% -0.2 0.10 ± 63%
perf-profile.children.cycles-pp.generic_perform_write
0.10 ± 4% -0.0 0.08 ± 4%
perf-profile.children.cycles-pp.lockref_get
0.05 +0.0 0.06 ± 11%
perf-profile.children.cycles-pp.path_get
0.24 +0.0 0.26 ± 2%
perf-profile.children.cycles-pp.__hrtimer_run_queues
0.10 ± 3% +0.0 0.13 ± 3%
perf-profile.children.cycles-pp.security_inode_permission
0.22 ± 7% +0.0 0.25 ± 3%
perf-profile.children.cycles-pp._raw_spin_lock
0.09 ± 4% +0.0 0.12 ± 5%
perf-profile.children.cycles-pp.obj_cgroup_charge
0.08 ± 8% +0.0 0.11 ± 3%
perf-profile.children.cycles-pp.ima_file_free
0.15 ± 5% +0.0 0.18 ± 2%
perf-profile.children.cycles-pp.fd_install
0.06 ± 6% +0.0 0.10 ± 5%
perf-profile.children.cycles-pp.make_vfsuid
0.05 +0.0 0.09 ± 4%
perf-profile.children.cycles-pp.rcu_all_qs
0.60 ± 2% +0.0 0.64
perf-profile.children.cycles-pp.__fsnotify_parent
0.08 ± 5% +0.0 0.13 ± 4%
perf-profile.children.cycles-pp.set_root
0.07 +0.0 0.12 ± 6%
perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
0.10 ± 10% +0.1 0.16 ± 4%
perf-profile.children.cycles-pp.__lookup_mnt
0.08 ± 5% +0.1 0.14 ± 9%
perf-profile.children.cycles-pp.mntput_no_expire
0.12 ± 6% +0.1 0.18 ± 2%
perf-profile.children.cycles-pp.nd_jump_root
0.00 +0.1 0.06 ± 8%
perf-profile.children.cycles-pp.current_obj_cgroup
0.00 +0.1 0.06 ± 8%
perf-profile.children.cycles-pp.get_unused_fd_flags
0.00 +0.1 0.06
perf-profile.children.cycles-pp._find_next_zero_bit
0.00 +0.1 0.06
perf-profile.children.cycles-pp.expand_files
0.00 +0.1 0.06 ± 7%
perf-profile.children.cycles-pp.locks_remove_file
0.00 +0.1 0.06 ± 7%
perf-profile.children.cycles-pp.dnotify_flush
0.00 +0.1 0.07 ± 5%
perf-profile.children.cycles-pp.refill_obj_stock
0.02 ±141% +0.1 0.08 ± 5%
perf-profile.children.cycles-pp.should_failslab
0.10 ± 5% +0.1 0.16 ± 5%
perf-profile.children.cycles-pp.mod_objcg_state
0.08 ± 4% +0.1 0.15 ± 4%
perf-profile.children.cycles-pp.__check_heap_object
0.02 ±141% +0.1 0.09 ± 5%
perf-profile.children.cycles-pp.file_ra_state_init
0.18 ± 9% +0.1 0.25 ± 3%
perf-profile.children.cycles-pp.__virt_addr_valid
0.00 +0.1 0.07 ± 5%
perf-profile.children.cycles-pp.getname
0.00 +0.1 0.08 ± 5%
perf-profile.children.cycles-pp.file_close_fd_locked
0.17 ± 9% +0.1 0.25 ± 6%
perf-profile.children.cycles-pp.percpu_counter_add_batch
0.11 ± 4% +0.1 0.19 ± 3%
perf-profile.children.cycles-pp.memset_orig
0.17 ± 2% +0.1 0.26 ± 2%
perf-profile.children.cycles-pp.path_init
0.10 ± 3% +0.1 0.20 ± 3%
perf-profile.children.cycles-pp.locks_remove_posix
0.26 ± 5% +0.1 0.37 ± 3%
perf-profile.children.cycles-pp.check_heap_object
0.27 ± 3% +0.1 0.38
perf-profile.children.cycles-pp.alloc_fd
0.16 ± 5% +0.1 0.28 ± 4%
perf-profile.children.cycles-pp.file_close_fd
0.09 ± 5% +0.1 0.20 ± 5%
perf-profile.children.cycles-pp.build_open_flags
0.31 ± 12% +0.1 0.43 ± 10%
perf-profile.children.cycles-pp.evm_file_release
0.77 ± 3% +0.1 0.90 ± 2%
perf-profile.children.cycles-pp.kmem_cache_free
0.23 ± 2% +0.1 0.36 ± 2%
perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.17 ± 4% +0.1 0.31 ± 2%
perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
0.18 ± 2% +0.2 0.34 ± 3%
perf-profile.children.cycles-pp.__cond_resched
0.34 ± 5% +0.2 0.50 ± 3%
perf-profile.children.cycles-pp.__d_lookup_rcu
0.32 ± 3% +0.2 0.49 ± 2%
perf-profile.children.cycles-pp.generic_permission
0.24 ± 2% +0.2 0.40 ± 3%
perf-profile.children.cycles-pp.__memcg_slab_free_hook
0.24 ± 4% +0.2 0.42 ± 2%
perf-profile.children.cycles-pp.open_last_lookups
0.17 ± 4% +0.2 0.34 ± 3%
perf-profile.children.cycles-pp.filp_flush
0.49 ± 8% +0.2 0.69 ± 6%
perf-profile.children.cycles-pp.security_file_release
0.34 ± 4% +0.2 0.54 ± 2%
perf-profile.children.cycles-pp.walk_component
0.40 ± 5% +0.2 0.61 ± 3%
perf-profile.children.cycles-pp.lookup_fast
0.35 ± 2% +0.2 0.56 ± 3%
perf-profile.children.cycles-pp.may_open
0.32 ± 2% +0.2 0.53 ± 3%
perf-profile.children.cycles-pp.step_into
0.41 ± 3% +0.2 0.63 ± 2%
perf-profile.children.cycles-pp.__check_object_size
0.66 ± 2% +0.3 0.92 ± 2%
perf-profile.children.cycles-pp.inode_permission
0.58 ± 3% +0.4 0.94 ± 2%
perf-profile.children.cycles-pp.strncpy_from_user
0.81 ± 2% +0.6 1.39 ± 2%
perf-profile.children.cycles-pp.getname_flags
1.39 +0.7 2.06
perf-profile.children.cycles-pp.entry_SYSCALL_64
1.06 +0.7 1.72 ± 2%
perf-profile.children.cycles-pp.kmem_cache_alloc
1.58 +0.8 2.39 ± 2%
perf-profile.children.cycles-pp.link_path_walk
6.45 +1.3 7.71
perf-profile.children.cycles-pp.syscall_return_via_sysret
2.83 ± 4% +3.1 5.90 ± 7%
perf-profile.children.cycles-pp.apparmor_current_getsecid_subj
2.85 ± 4% +3.1 5.92 ± 7%
perf-profile.children.cycles-pp.security_current_getsecid_subj
3.17 ± 3% +3.1 6.31 ± 6%
perf-profile.children.cycles-pp.ima_file_check
3.21 ± 3% +3.2 6.38 ± 6%
perf-profile.children.cycles-pp.security_file_post_open
12.30 +3.9 16.24 ± 2%
perf-profile.children.cycles-pp.apparmor_file_free_security
12.34 +3.9 16.29
perf-profile.children.cycles-pp.security_file_free
15.01 +5.2 20.16 ± 2%
perf-profile.children.cycles-pp.__fput
15.88 +5.7 21.60 ± 2%
perf-profile.children.cycles-pp.__x64_sys_close
25.88 +7.5 33.38
perf-profile.children.cycles-pp.__close
15.20 +9.4 24.57
perf-profile.children.cycles-pp.init_file
14.24 +9.7 23.91
perf-profile.children.cycles-pp.apparmor_file_alloc_security
16.04 +9.8 25.84
perf-profile.children.cycles-pp.alloc_empty_file
14.52 +9.9 24.37
perf-profile.children.cycles-pp.security_file_alloc
26.90 -21.5 5.43 ± 8%
perf-profile.self.cycles-pp.apparmor_file_open
2.08 ± 4% -1.8 0.28 ± 13%
perf-profile.self.cycles-pp.putname
0.75 ± 12% -0.6 0.12 ± 6%
perf-profile.self.cycles-pp.lockref_get_not_dead
0.68 ± 10% -0.5 0.18 ± 4%
perf-profile.self.cycles-pp.init_file
0.40 ± 14% -0.3 0.11 ± 3%
perf-profile.self.cycles-pp.mnt_get_write_access
3.75 -0.2 3.58 ± 2%
perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.53 ± 4% -0.0 0.49 ± 2%
perf-profile.self.cycles-pp.kmem_cache_free
0.10 ± 4% -0.0 0.08 ± 6%
perf-profile.self.cycles-pp.lockref_get
0.08 ± 8% +0.0 0.10 ± 4%
perf-profile.self.cycles-pp.ima_file_free
0.07 ± 5% +0.0 0.09 ± 5%
perf-profile.self.cycles-pp.obj_cgroup_charge
0.06 +0.0 0.08 ± 5% perf-profile.self.cycles-pp.dput
0.14 ± 4% +0.0 0.17 ± 4%
perf-profile.self.cycles-pp.fd_install
0.10 ± 3% +0.0 0.12 ± 4%
perf-profile.self.cycles-pp.security_inode_permission
0.06 ± 9% +0.0 0.08 ± 4%
perf-profile.self.cycles-pp.make_vfsuid
0.07 +0.0 0.10 ± 7%
perf-profile.self.cycles-pp.check_heap_object
0.12 ± 8% +0.0 0.16 ± 3%
perf-profile.self.cycles-pp.do_sys_openat2
0.06 +0.0 0.10
perf-profile.self.cycles-pp.security_file_alloc
0.60 ± 3% +0.0 0.64
perf-profile.self.cycles-pp.__fsnotify_parent
0.09 ± 4% +0.0 0.13 ± 4%
perf-profile.self.cycles-pp.security_file_release
0.03 ± 70% +0.0 0.08 ± 4%
perf-profile.self.cycles-pp.path_init
0.10 ± 7% +0.0 0.15 ± 7%
perf-profile.self.cycles-pp.__lookup_mnt
0.08 ± 4% +0.0 0.13 ± 3%
perf-profile.self.cycles-pp.set_root
0.06 ± 7% +0.0 0.11 ± 3%
perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare
0.06 +0.1 0.11
perf-profile.self.cycles-pp.lookup_fast
0.00 +0.1 0.05
perf-profile.self.cycles-pp._find_next_zero_bit
0.00 +0.1 0.05
perf-profile.self.cycles-pp.expand_files
0.07 ± 6% +0.1 0.12 ± 4%
perf-profile.self.cycles-pp.open_last_lookups
0.00 +0.1 0.05 ± 7%
perf-profile.self.cycles-pp.current_obj_cgroup
0.08 ± 4% +0.1 0.13 ± 10%
perf-profile.self.cycles-pp.mntput_no_expire
0.00 +0.1 0.05 ± 7%
perf-profile.self.cycles-pp.nd_jump_root
0.00 +0.1 0.05 ± 7%
perf-profile.self.cycles-pp.security_file_open
0.08 ± 6% +0.1 0.13 ± 4%
perf-profile.self.cycles-pp.ima_file_check
0.00 +0.1 0.05 ± 8%
perf-profile.self.cycles-pp.get_unused_fd_flags
0.00 +0.1 0.05 ± 8%
perf-profile.self.cycles-pp.locks_remove_file
0.06 +0.1 0.12 ± 4%
perf-profile.self.cycles-pp.getname_flags
0.05 ± 7% +0.1 0.11 ± 4%
perf-profile.self.cycles-pp.walk_component
0.00 +0.1 0.06 ± 8%
perf-profile.self.cycles-pp.try_to_unlazy
0.03 ± 70% +0.1 0.09 ± 6%
perf-profile.self.cycles-pp.__check_object_size
0.17 ± 9% +0.1 0.22 ± 3%
perf-profile.self.cycles-pp.__virt_addr_valid
0.00 +0.1 0.06 ± 7%
perf-profile.self.cycles-pp.dnotify_flush
0.00 +0.1 0.07 ± 7%
perf-profile.self.cycles-pp.alloc_empty_file
0.08 +0.1 0.15 ± 4%
perf-profile.self.cycles-pp.__x64_sys_openat
0.00 +0.1 0.07 ± 5%
perf-profile.self.cycles-pp.refill_obj_stock
0.08 ± 6% +0.1 0.14 ± 3%
perf-profile.self.cycles-pp.__x64_sys_close
0.08 ± 4% +0.1 0.15 ± 4%
perf-profile.self.cycles-pp.__check_heap_object
0.00 +0.1 0.07
perf-profile.self.cycles-pp.rcu_all_qs
0.09 ± 5% +0.1 0.16 ± 5%
perf-profile.self.cycles-pp.mod_objcg_state
0.12 ± 4% +0.1 0.20 ± 6%
perf-profile.self.cycles-pp.path_openat
0.00 +0.1 0.07 ± 10%
perf-profile.self.cycles-pp.security_file_post_open
0.00 +0.1 0.08 ± 6%
perf-profile.self.cycles-pp.filp_flush
0.00 +0.1 0.08 ± 6%
perf-profile.self.cycles-pp.file_close_fd_locked
0.31 ± 3% +0.1 0.39 ± 4%
perf-profile.self.cycles-pp.inode_permission
0.17 ± 11% +0.1 0.25 ± 6%
perf-profile.self.cycles-pp.percpu_counter_add_batch
0.13 ± 5% +0.1 0.21 ± 3%
perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.10 ± 3% +0.1 0.18 ± 2%
perf-profile.self.cycles-pp.memset_orig
0.09 ± 4% +0.1 0.17 ± 4%
perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.08 ± 5% +0.1 0.17 ± 4%
perf-profile.self.cycles-pp.may_open
0.10 ± 7% +0.1 0.19 ± 4%
perf-profile.self.cycles-pp.__memcg_slab_free_hook
0.09 ± 4% +0.1 0.18 ± 4%
perf-profile.self.cycles-pp.alloc_fd
0.10 ± 3% +0.1 0.20 ± 5%
perf-profile.self.cycles-pp.locks_remove_posix
0.13 ± 2% +0.1 0.24 ± 2%
perf-profile.self.cycles-pp.__memcg_slab_post_alloc_hook
0.12 ± 6% +0.1 0.24 ± 2%
perf-profile.self.cycles-pp.do_open
0.09 ± 5% +0.1 0.20 ± 5%
perf-profile.self.cycles-pp.build_open_flags
0.31 ± 13% +0.1 0.43 ± 10%
perf-profile.self.cycles-pp.evm_file_release
0.13 ± 2% +0.1 0.25 ± 3%
perf-profile.self.cycles-pp.__cond_resched
0.28 ± 2% +0.1 0.42 ± 3%
perf-profile.self.cycles-pp.generic_permission
0.17 ± 4% +0.1 0.30
perf-profile.self.cycles-pp.strncpy_from_user
0.90 ± 4% +0.1 1.03 ± 6%
perf-profile.self.cycles-pp.do_dentry_open
0.17 +0.2 0.32 ± 2%
perf-profile.self.cycles-pp.do_filp_open
0.34 ± 6% +0.2 0.48 ± 3%
perf-profile.self.cycles-pp.__d_lookup_rcu
0.21 ± 3% +0.2 0.37 ± 4%
perf-profile.self.cycles-pp.step_into
0.48 ± 3% +0.3 0.78 ± 3%
perf-profile.self.cycles-pp.link_path_walk
0.58 ± 2% +0.3 0.90 ± 2%
perf-profile.self.cycles-pp.kmem_cache_alloc
0.35 ± 7% +0.3 0.69 ± 12%
perf-profile.self.cycles-pp.__close
1.12 ± 5% +0.4 1.55 ± 9% perf-profile.self.cycles-pp.__fput
1.25 +0.6 1.80
perf-profile.self.cycles-pp.entry_SYSCALL_64
0.53 ± 3% +0.6 1.16 ± 3% perf-profile.self.cycles-pp.open64
6.44 +1.3 7.70
perf-profile.self.cycles-pp.syscall_return_via_sysret
2.82 ± 4% +3.1 5.87 ± 7%
perf-profile.self.cycles-pp.apparmor_current_getsecid_subj
12.26 +3.9 16.18 ± 2%
perf-profile.self.cycles-pp.apparmor_file_free_security
14.17 +9.6 23.80
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
