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Date: Fri, 20 Jan 2023 13:15:08 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Mateusz Guzik <mjguzik@...il.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
<linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Peter Zijlstra <peterz@...radead.org>, <ying.huang@...el.com>,
<feng.tang@...el.com>, <zhengjun.xing@...ux.intel.com>,
<fengwei.yin@...el.com>
Subject: [linus:master] [lockref] f5fe24ef17:
fxmark.ssd_xfs_MRPH_72_bufferedio.works/sec 164.9% improvement
Greeting,
FYI, we noticed a 164.9% improvement of fxmark.ssd_xfs_MRPH_72_bufferedio.works/sec due to commit:
commit: f5fe24ef17b5fbe6db49534163e77499fb10ae8c ("lockref: stop doing cpu_relax in the cmpxchg loop")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: fxmark
on test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory
with following parameters:
disk: 1SSD
media: ssd
test: MRPH
fstype: xfs
directio: bufferedio
cpufreq_governor: performance
test-description: FxMark is a filesystem benchmark that test multicore scalability.
test-url: https://github.com/sslab-gatech/fxmark
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 73.1% improvement |
| test machine | 104 threads 2 sockets (Skylake) with 192G memory |
| test parameters | cpufreq_governor=performance |
| | mode=process |
| | nr_task=16 |
| | test=open3 |
+------------------+----------------------------------------------------------------+
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
sudo bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
sudo bin/lkp run generated-yaml-file
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
=========================================================================================
compiler/cpufreq_governor/directio/disk/fstype/kconfig/media/rootfs/tbox_group/test/testcase:
gcc-11/performance/bufferedio/1SSD/xfs/x86_64-rhel-8.3/ssd/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp5/MRPH/fxmark
commit:
0bf913e07b ("Merge tag 'efi-fixes-for-v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi")
f5fe24ef17 ("lockref: stop doing cpu_relax in the cmpxchg loop")
0bf913e07b377cfc f5fe24ef17b5fbe6db49534163e
---------------- ---------------------------
%stddev %change %stddev
\ | \
113.20 ± 9% +24.2% 140.63 ± 3% fxmark.ssd_xfs_MRPH_18_bufferedio.user_sec
12.57 ± 9% +24.2% 15.61 ± 3% fxmark.ssd_xfs_MRPH_18_bufferedio.user_util
2.898e+08 ± 9% +23.4% 3.577e+08 ± 2% fxmark.ssd_xfs_MRPH_18_bufferedio.works
5796755 ± 9% +23.4% 7154469 ± 2% fxmark.ssd_xfs_MRPH_18_bufferedio.works/sec
69.00 ± 19% +47.6% 101.84 ± 10% fxmark.ssd_xfs_MRPH_36_bufferedio.user_sec
3.83 ± 19% +47.6% 5.65 ± 10% fxmark.ssd_xfs_MRPH_36_bufferedio.user_util
1.759e+08 ± 18% +42.2% 2.502e+08 ± 11% fxmark.ssd_xfs_MRPH_36_bufferedio.works
3518906 ± 18% +42.2% 5004235 ± 11% fxmark.ssd_xfs_MRPH_36_bufferedio.works/sec
67.29 ± 33% +74.4% 117.34 ± 12% fxmark.ssd_xfs_MRPH_54_bufferedio.user_sec
2.49 ± 33% +74.4% 4.34 ± 12% fxmark.ssd_xfs_MRPH_54_bufferedio.user_util
1.677e+08 ± 34% +74.8% 2.932e+08 ± 12% fxmark.ssd_xfs_MRPH_54_bufferedio.works
3354868 ± 34% +74.8% 5864422 ± 12% fxmark.ssd_xfs_MRPH_54_bufferedio.works/sec
19.26 ± 2% -12.0% 16.95 ± 6% fxmark.ssd_xfs_MRPH_72_bufferedio.irq_sec
0.53 ± 2% -12.0% 0.47 ± 6% fxmark.ssd_xfs_MRPH_72_bufferedio.irq_util
41.56 ± 2% +159.7% 107.93 ± 33% fxmark.ssd_xfs_MRPH_72_bufferedio.user_sec
1.15 ± 2% +159.7% 3.00 ± 33% fxmark.ssd_xfs_MRPH_72_bufferedio.user_util
92456310 ± 2% +164.9% 2.449e+08 ± 34% fxmark.ssd_xfs_MRPH_72_bufferedio.works
1849128 ± 2% +164.9% 4897580 ± 34% fxmark.ssd_xfs_MRPH_72_bufferedio.works/sec
0.72 ± 2% +6.5% 0.77 ± 2% perf-stat.ps.major-faults
151.91 ± 10% +23.4% 187.41 ± 16% sched_debug.cfs_rq:/.util_est_enqueued.avg
13144 ± 28% -41.2% 7729 ± 56% proc-vmstat.numa_pages_migrated
13144 ± 28% -41.2% 7729 ± 56% proc-vmstat.pgmigrate_success
***************************************************************************************************
lkp-skl-fpga01: 104 threads 2 sockets (Skylake) with 192G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-11/performance/x86_64-rhel-8.3/process/16/debian-11.1-x86_64-20220510.cgz/lkp-skl-fpga01/open3/will-it-scale
commit:
0bf913e07b ("Merge tag 'efi-fixes-for-v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi")
f5fe24ef17 ("lockref: stop doing cpu_relax in the cmpxchg loop")
0bf913e07b377cfc f5fe24ef17b5fbe6db49534163e
---------------- ---------------------------
%stddev %change %stddev
\ | \
1073256 ± 3% +73.1% 1857962 ± 6% will-it-scale.16.processes
67078 ± 3% +73.1% 116122 ± 6% will-it-scale.per_process_ops
1073256 ± 3% +73.1% 1857962 ± 6% will-it-scale.workload
11873 ±127% -92.2% 929.17 ± 37% numa-meminfo.node1.Mapped
9042529 ± 3% +66.5% 15055720 ± 6% numa-numastat.node0.local_node
9082850 ± 3% +66.1% 15090608 ± 6% numa-numastat.node0.numa_hit
0.05 ± 10% +60.7% 0.08 ± 6% turbostat.IPC
220.56 +3.1% 227.36 turbostat.PkgWatt
1.68 ± 10% -0.3 1.40 ± 2% mpstat.cpu.all.irq%
0.18 ± 4% +0.1 0.26 ± 8% mpstat.cpu.all.soft%
1.19 ± 15% +0.7 1.87 ± 2% mpstat.cpu.all.usr%
9082921 ± 3% +66.1% 15090591 ± 6% numa-vmstat.node0.numa_hit
9042600 ± 3% +66.5% 15055704 ± 6% numa-vmstat.node0.numa_local
2967 ±127% -91.9% 240.17 ± 34% numa-vmstat.node1.nr_mapped
9679445 ± 2% +62.2% 15697699 ± 5% proc-vmstat.numa_hit
9584229 ± 2% +62.8% 15603315 ± 5% proc-vmstat.numa_local
18656711 ± 3% +64.6% 30700650 ± 5% proc-vmstat.pgalloc_normal
18625336 ± 3% +64.7% 30666686 ± 5% proc-vmstat.pgfree
1.465e+09 ± 2% +60.9% 2.356e+09 ± 5% perf-stat.i.branch-instructions
1.80 ± 11% -0.4 1.36 perf-stat.i.branch-miss-rate%
26733272 ± 10% +21.2% 32400604 ± 4% perf-stat.i.branch-misses
1.713e+08 ± 12% +46.9% 2.516e+08 ± 9% perf-stat.i.cache-references
6.38 ± 3% -39.4% 3.87 ± 5% perf-stat.i.cpi
4.787e+10 -2.0% 4.693e+10 perf-stat.i.cpu-cycles
3361695 ± 13% +19.0% 4002066 ± 5% perf-stat.i.dTLB-load-misses
2.136e+09 ± 2% +63.8% 3.5e+09 ± 5% perf-stat.i.dTLB-loads
0.01 ± 39% -0.0 0.00 ± 14% perf-stat.i.dTLB-store-miss-rate%
1.196e+09 ± 2% +64.2% 1.964e+09 ± 5% perf-stat.i.dTLB-stores
2959344 ± 2% +65.7% 4904453 ± 4% perf-stat.i.iTLB-load-misses
4632906 ± 13% +65.6% 7672899 ± 13% perf-stat.i.iTLB-loads
7.574e+09 ± 2% +61.3% 1.222e+10 ± 5% perf-stat.i.instructions
0.16 ± 3% +64.6% 0.26 ± 5% perf-stat.i.ipc
0.46 -2.0% 0.45 perf-stat.i.metric.GHz
53.96 ± 13% +58.4% 85.45 ± 12% perf-stat.i.metric.K/sec
47.77 ± 2% +62.5% 77.61 ± 5% perf-stat.i.metric.M/sec
24.18 ± 24% -9.3 14.93 ± 20% perf-stat.i.node-load-miss-rate%
83431 ± 8% +21.0% 100988 ± 3% perf-stat.i.node-load-misses
291228 ± 27% +110.6% 613461 ± 23% perf-stat.i.node-loads
7.86 ± 28% -3.4 4.50 ± 20% perf-stat.i.node-store-miss-rate%
242828 ± 23% +93.7% 470348 ± 22% perf-stat.i.node-stores
1.83 ± 10% -0.4 1.38 perf-stat.overall.branch-miss-rate%
6.32 ± 3% -39.1% 3.85 ± 5% perf-stat.overall.cpi
0.01 ± 38% -0.0 0.00 ± 14% perf-stat.overall.dTLB-store-miss-rate%
0.16 ± 3% +64.6% 0.26 ± 5% perf-stat.overall.ipc
23.33 ± 23% -8.6 14.70 ± 19% perf-stat.overall.node-load-miss-rate%
7.90 ± 27% -3.4 4.51 ± 18% perf-stat.overall.node-store-miss-rate%
2131429 -6.7% 1987757 perf-stat.overall.path-length
1.46e+09 ± 2% +60.9% 2.35e+09 ± 5% perf-stat.ps.branch-instructions
26658961 ± 10% +21.4% 32361331 ± 4% perf-stat.ps.branch-misses
1.707e+08 ± 12% +46.9% 2.507e+08 ± 9% perf-stat.ps.cache-references
4.771e+10 -2.0% 4.678e+10 perf-stat.ps.cpu-cycles
110.34 +0.9% 111.38 perf-stat.ps.cpu-migrations
3350393 ± 13% +19.1% 3988846 ± 5% perf-stat.ps.dTLB-load-misses
2.129e+09 ± 2% +63.9% 3.489e+09 ± 5% perf-stat.ps.dTLB-loads
1.192e+09 ± 2% +64.2% 1.958e+09 ± 5% perf-stat.ps.dTLB-stores
2949621 ± 2% +65.7% 4888216 ± 4% perf-stat.ps.iTLB-load-misses
4617332 ± 13% +65.6% 7647709 ± 13% perf-stat.ps.iTLB-loads
7.55e+09 ± 2% +61.4% 1.219e+10 ± 5% perf-stat.ps.instructions
83148 ± 8% +21.2% 100761 ± 3% perf-stat.ps.node-load-misses
290435 ± 27% +110.8% 612364 ± 23% perf-stat.ps.node-loads
19456 ± 3% +9.4% 21281 ± 4% perf-stat.ps.node-store-misses
242169 ± 23% +94.0% 469843 ± 22% perf-stat.ps.node-stores
2.287e+12 ± 2% +61.5% 3.692e+12 ± 5% perf-stat.total.instructions
18.81 ± 59% -18.8 0.00 perf-profile.calltrace.cycles-pp.intel_idle_ibrs.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
18.70 ± 59% -18.7 0.00 perf-profile.calltrace.cycles-pp.mwait_idle_with_hints.intel_idle_ibrs.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
9.85 ± 8% -4.6 5.23 ± 10% perf-profile.calltrace.cycles-pp.lockref_get_not_dead.__legitimize_path.try_to_unlazy.complete_walk.do_open
10.79 ± 10% -4.6 6.22 ± 9% perf-profile.calltrace.cycles-pp.lockref_get.do_dentry_open.do_open.path_openat.do_filp_open
10.70 ± 11% -4.5 6.22 ± 12% perf-profile.calltrace.cycles-pp.lockref_put_or_lock.dput.terminate_walk.path_openat.do_filp_open
10.96 ± 10% -4.3 6.65 ± 10% perf-profile.calltrace.cycles-pp.dput.terminate_walk.path_openat.do_filp_open.do_sys_openat2
11.02 ± 10% -4.3 6.73 ± 10% perf-profile.calltrace.cycles-pp.terminate_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
11.86 ± 7% -4.2 7.67 ± 11% perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.complete_walk.do_open.path_openat
11.89 ± 7% -4.2 7.72 ± 11% perf-profile.calltrace.cycles-pp.try_to_unlazy.complete_walk.do_open.path_openat.do_filp_open
11.91 ± 7% -4.2 7.75 ± 11% perf-profile.calltrace.cycles-pp.complete_walk.do_open.path_openat.do_filp_open.do_sys_openat2
10.92 ± 10% -4.2 6.76 ± 12% perf-profile.calltrace.cycles-pp.lockref_put_or_lock.dput.__fput.task_work_run.exit_to_user_mode_loop
11.20 ± 8% -3.9 7.26 ± 11% perf-profile.calltrace.cycles-pp.dput.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare
12.49 ± 6% -2.2 10.27 ± 11% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.61 ± 5% +0.4 1.04 ± 10% perf-profile.calltrace.cycles-pp.kmem_cache_alloc.__alloc_file.alloc_empty_file.path_openat.do_filp_open
0.66 ± 6% +0.5 1.13 ± 11% perf-profile.calltrace.cycles-pp.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.55 ± 11% +0.6 3.16 ± 12% perf-profile.calltrace.cycles-pp.__d_lookup_rcu.lookup_fast.open_last_lookups.path_openat.do_filp_open
1.02 ± 6% +0.7 1.70 ± 11% perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.open64
1.02 ± 5% +0.7 1.70 ± 11% perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__close
0.00 +0.7 0.72 ± 11% perf-profile.calltrace.cycles-pp.__entry_text_start.__close
0.48 ± 44% +0.7 1.20 ± 11% perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.00 +0.7 0.73 ± 11% perf-profile.calltrace.cycles-pp.__entry_text_start.open64
0.00 +0.8 0.75 ± 11% perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64
0.00 +0.8 0.82 ± 11% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.00 +0.9 0.88 ± 13% perf-profile.calltrace.cycles-pp.apparmor_file_free_security.security_file_free.__fput.task_work_run.exit_to_user_mode_loop
0.74 ± 6% +0.9 1.63 ± 13% perf-profile.calltrace.cycles-pp.security_file_alloc.__alloc_file.alloc_empty_file.path_openat.do_filp_open
0.00 +0.9 0.90 ± 12% perf-profile.calltrace.cycles-pp.security_file_free.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare
0.00 +1.0 0.96 ± 11% perf-profile.calltrace.cycles-pp.filp_close.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.26 ±100% +1.0 1.24 ± 13% perf-profile.calltrace.cycles-pp.apparmor_file_alloc_security.security_file_alloc.__alloc_file.alloc_empty_file.path_openat
1.50 ± 5% +1.4 2.93 ± 12% perf-profile.calltrace.cycles-pp.__alloc_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
1.54 ± 5% +1.5 2.99 ± 12% perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
2.55 ± 6% +1.5 4.07 ± 11% perf-profile.calltrace.cycles-pp.apparmor_file_open.security_file_open.do_dentry_open.do_open.path_openat
2.56 ± 6% +1.5 4.09 ± 11% perf-profile.calltrace.cycles-pp.security_file_open.do_dentry_open.do_open.path_openat.do_filp_open
21.63 ± 10% -8.6 12.99 ± 12% perf-profile.children.cycles-pp.lockref_put_or_lock
22.16 ± 9% -8.2 13.92 ± 10% perf-profile.children.cycles-pp.dput
9.86 ± 8% -4.6 5.23 ± 10% perf-profile.children.cycles-pp.lockref_get_not_dead
10.82 ± 10% -4.6 6.25 ± 10% perf-profile.children.cycles-pp.lockref_get
11.02 ± 10% -4.3 6.74 ± 10% perf-profile.children.cycles-pp.terminate_walk
11.86 ± 7% -4.2 7.67 ± 11% perf-profile.children.cycles-pp.__legitimize_path
11.89 ± 7% -4.2 7.73 ± 11% perf-profile.children.cycles-pp.try_to_unlazy
11.91 ± 7% -4.2 7.75 ± 11% perf-profile.children.cycles-pp.complete_walk
12.51 ± 6% -2.2 10.30 ± 11% perf-profile.children.cycles-pp.__fput
0.06 ± 15% +0.0 0.09 ± 15% perf-profile.children.cycles-pp._raw_spin_lock_irq
0.05 ± 8% +0.0 0.09 ± 16% perf-profile.children.cycles-pp.build_open_flags
0.06 ± 13% +0.0 0.09 ± 10% perf-profile.children.cycles-pp.should_failslab
0.05 ± 8% +0.0 0.09 ± 15% perf-profile.children.cycles-pp.path_init
0.06 ± 14% +0.0 0.11 ± 14% perf-profile.children.cycles-pp.__lookup_mnt
0.04 ± 71% +0.0 0.08 ± 19% perf-profile.children.cycles-pp.__might_fault
0.02 ±141% +0.0 0.06 ± 14% perf-profile.children.cycles-pp.rcu_segcblist_enqueue
0.06 ± 11% +0.0 0.11 ± 12% perf-profile.children.cycles-pp.generic_permission
0.09 ± 7% +0.1 0.14 ± 10% perf-profile.children.cycles-pp.walk_component
0.08 ± 13% +0.1 0.13 ± 13% perf-profile.children.cycles-pp.__get_obj_cgroup_from_memcg
0.07 ± 7% +0.1 0.12 ± 12% perf-profile.children.cycles-pp.__check_heap_object
0.08 ± 25% +0.1 0.13 ± 20% perf-profile.children.cycles-pp.rcu_cblist_dequeue
0.02 ±141% +0.1 0.07 ± 10% perf-profile.children.cycles-pp.testcase
0.13 ± 5% +0.1 0.18 ± 9% perf-profile.children.cycles-pp._raw_spin_lock
0.02 ±141% +0.1 0.07 ± 18% perf-profile.children.cycles-pp.obj_cgroup_charge
0.06 ± 7% +0.1 0.12 ± 8% perf-profile.children.cycles-pp.__might_sleep
0.06 ± 13% +0.1 0.12 ± 13% perf-profile.children.cycles-pp.__mnt_want_write
0.10 ± 6% +0.1 0.16 ± 10% perf-profile.children.cycles-pp.close_fd
0.10 ± 7% +0.1 0.17 ± 11% perf-profile.children.cycles-pp.__cond_resched
0.09 ± 9% +0.1 0.16 ± 10% perf-profile.children.cycles-pp.task_work_add
0.09 ± 10% +0.1 0.15 ± 14% perf-profile.children.cycles-pp.memset_erms
0.10 ± 14% +0.1 0.17 ± 10% perf-profile.children.cycles-pp.___slab_alloc
0.10 ± 7% +0.1 0.18 ± 13% perf-profile.children.cycles-pp.mod_objcg_state
0.10 ± 10% +0.1 0.17 ± 12% perf-profile.children.cycles-pp.__virt_addr_valid
0.12 ± 11% +0.1 0.19 ± 12% perf-profile.children.cycles-pp.__slab_free
0.13 ± 11% +0.1 0.21 ± 9% perf-profile.children.cycles-pp.__call_rcu_common
0.14 ± 7% +0.1 0.23 ± 10% perf-profile.children.cycles-pp.fput
0.13 ± 7% +0.1 0.22 ± 16% perf-profile.children.cycles-pp.alloc_fd
0.15 ± 8% +0.1 0.24 ± 12% perf-profile.children.cycles-pp.step_into
0.03 ±100% +0.1 0.12 ± 37% perf-profile.children.cycles-pp.dnotify_flush
0.13 ± 10% +0.1 0.22 ± 14% perf-profile.children.cycles-pp.file_free_rcu
0.14 ± 8% +0.1 0.24 ± 9% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.11 ± 14% +0.1 0.21 ± 13% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.15 ± 11% +0.1 0.26 ± 11% perf-profile.children.cycles-pp.check_heap_object
0.15 ± 7% +0.1 0.25 ± 11% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.16 ± 9% +0.1 0.29 ± 9% perf-profile.children.cycles-pp.__might_resched
0.18 ± 7% +0.1 0.31 ± 8% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.16 ± 8% +0.1 0.29 ± 14% perf-profile.children.cycles-pp.inode_permission
0.19 ± 7% +0.1 0.33 ± 14% perf-profile.children.cycles-pp.memcg_slab_post_alloc_hook
0.27 ± 3% +0.2 0.45 ± 11% perf-profile.children.cycles-pp.kmem_cache_free
0.26 ± 8% +0.2 0.45 ± 9% perf-profile.children.cycles-pp.__check_object_size
0.20 ± 25% +0.2 0.43 ± 14% perf-profile.children.cycles-pp.__fsnotify_parent
0.08 ± 19% +0.3 0.40 ± 14% perf-profile.children.cycles-pp.locks_remove_file
0.44 ± 6% +0.3 0.76 ± 11% perf-profile.children.cycles-pp.strncpy_from_user
0.72 ± 5% +0.4 1.07 ± 12% perf-profile.children.cycles-pp.__irq_exit_rcu
0.50 ± 5% +0.4 0.85 ± 11% perf-profile.children.cycles-pp.link_path_walk
0.68 ± 3% +0.4 1.03 ± 12% perf-profile.children.cycles-pp.__do_softirq
0.23 ± 11% +0.4 0.60 ± 13% perf-profile.children.cycles-pp.locks_remove_posix
0.54 ± 7% +0.4 0.92 ± 12% perf-profile.children.cycles-pp.rcu_do_batch
0.55 ± 6% +0.4 0.93 ± 12% perf-profile.children.cycles-pp.rcu_core
0.66 ± 6% +0.5 1.13 ± 11% perf-profile.children.cycles-pp.getname_flags
0.42 ± 6% +0.5 0.90 ± 12% perf-profile.children.cycles-pp.security_file_free
0.39 ± 7% +0.5 0.88 ± 13% perf-profile.children.cycles-pp.apparmor_file_free_security
0.42 ± 7% +0.5 0.97 ± 11% perf-profile.children.cycles-pp.filp_close
0.99 ± 6% +0.6 1.63 ± 10% perf-profile.children.cycles-pp.__entry_text_start
0.56 ± 6% +0.6 1.20 ± 11% perf-profile.children.cycles-pp.__x64_sys_close
2.61 ± 10% +0.7 3.27 ± 12% perf-profile.children.cycles-pp.__d_lookup_rcu
1.00 ± 7% +0.7 1.68 ± 11% perf-profile.children.cycles-pp.kmem_cache_alloc
0.50 ± 5% +0.7 1.25 ± 13% perf-profile.children.cycles-pp.apparmor_file_alloc_security
0.74 ± 6% +0.9 1.63 ± 13% perf-profile.children.cycles-pp.security_file_alloc
2.07 ± 5% +1.4 3.45 ± 11% perf-profile.children.cycles-pp.syscall_return_via_sysret
1.51 ± 5% +1.4 2.94 ± 12% perf-profile.children.cycles-pp.__alloc_file
1.54 ± 5% +1.5 3.00 ± 12% perf-profile.children.cycles-pp.alloc_empty_file
2.55 ± 6% +1.5 4.08 ± 11% perf-profile.children.cycles-pp.apparmor_file_open
2.56 ± 6% +1.5 4.09 ± 11% perf-profile.children.cycles-pp.security_file_open
21.33 ± 10% -8.6 12.71 ± 12% perf-profile.self.cycles-pp.lockref_put_or_lock
9.72 ± 8% -4.6 5.13 ± 10% perf-profile.self.cycles-pp.lockref_get_not_dead
10.67 ± 10% -4.6 6.12 ± 10% perf-profile.self.cycles-pp.lockref_get
0.07 ± 14% +0.0 0.10 ± 4% perf-profile.self.cycles-pp.mntput_no_expire
0.06 ± 16% +0.0 0.09 ± 14% perf-profile.self.cycles-pp._raw_spin_lock_irq
0.05 +0.0 0.08 ± 14% perf-profile.self.cycles-pp.build_open_flags
0.05 ± 8% +0.0 0.09 ± 9% perf-profile.self.cycles-pp.exit_to_user_mode_loop
0.06 ± 11% +0.0 0.10 ± 13% perf-profile.self.cycles-pp.__cond_resched
0.06 ± 14% +0.0 0.10 ± 12% perf-profile.self.cycles-pp.__lookup_mnt
0.03 ± 70% +0.0 0.07 ± 12% perf-profile.self.cycles-pp.fput
0.07 ± 10% +0.0 0.11 ± 14% perf-profile.self.cycles-pp.task_work_run
0.06 ± 6% +0.0 0.10 ± 22% perf-profile.self.cycles-pp.alloc_fd
0.07 ± 14% +0.0 0.12 ± 17% perf-profile.self.cycles-pp.do_syscall_64
0.02 ± 99% +0.0 0.07 ± 8% perf-profile.self.cycles-pp.path_openat
0.05 ± 8% +0.0 0.10 ± 10% perf-profile.self.cycles-pp.generic_permission
0.08 ± 10% +0.0 0.13 ± 13% perf-profile.self.cycles-pp.__get_obj_cgroup_from_memcg
0.07 ± 12% +0.0 0.12 ± 10% perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.07 ± 7% +0.0 0.12 ± 13% perf-profile.self.cycles-pp.__check_heap_object
0.06 ± 11% +0.1 0.11 ± 6% perf-profile.self.cycles-pp.get_obj_cgroup_from_current
0.06 ± 6% +0.1 0.11 ± 8% perf-profile.self.cycles-pp.__might_sleep
0.04 ± 45% +0.1 0.10 ± 19% perf-profile.self.cycles-pp.__x64_sys_openat
0.12 ± 7% +0.1 0.18 ± 9% perf-profile.self.cycles-pp._raw_spin_lock
0.08 ± 7% +0.1 0.14 ± 10% perf-profile.self.cycles-pp.step_into
0.01 ±223% +0.1 0.06 ± 11% perf-profile.self.cycles-pp.rcu_segcblist_enqueue
0.06 ± 11% +0.1 0.11 ± 14% perf-profile.self.cycles-pp.__mnt_want_write
0.07 ± 26% +0.1 0.13 ± 20% perf-profile.self.cycles-pp.rcu_cblist_dequeue
0.07 ± 11% +0.1 0.13 ± 14% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.02 ±141% +0.1 0.07 ± 10% perf-profile.self.cycles-pp.__x64_sys_close
0.08 ± 8% +0.1 0.14 ± 10% perf-profile.self.cycles-pp.task_work_add
0.08 ± 11% +0.1 0.14 ± 15% perf-profile.self.cycles-pp.memset_erms
0.00 +0.1 0.06 ± 11% perf-profile.self.cycles-pp.__check_object_size
0.10 ± 9% +0.1 0.16 ± 12% perf-profile.self.cycles-pp.mod_objcg_state
0.10 ± 13% +0.1 0.16 ± 12% perf-profile.self.cycles-pp.__virt_addr_valid
0.00 +0.1 0.07 ± 11% perf-profile.self.cycles-pp.getname_flags
0.12 ± 9% +0.1 0.19 ± 12% perf-profile.self.cycles-pp.__slab_free
0.09 ± 10% +0.1 0.18 ± 15% perf-profile.self.cycles-pp.inode_permission
0.03 ±100% +0.1 0.12 ± 34% perf-profile.self.cycles-pp.dnotify_flush
0.13 ± 10% +0.1 0.22 ± 16% perf-profile.self.cycles-pp.__alloc_file
0.13 ± 10% +0.1 0.22 ± 14% perf-profile.self.cycles-pp.file_free_rcu
0.13 ± 8% +0.1 0.22 ± 9% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.13 ± 10% +0.1 0.24 ± 13% perf-profile.self.cycles-pp.strncpy_from_user
0.14 ± 7% +0.1 0.25 ± 12% perf-profile.self.cycles-pp.memcg_slab_post_alloc_hook
0.16 ± 4% +0.1 0.28 ± 12% perf-profile.self.cycles-pp.kmem_cache_free
0.11 ± 13% +0.1 0.23 ± 11% perf-profile.self.cycles-pp.__close
0.16 ± 9% +0.1 0.28 ± 9% perf-profile.self.cycles-pp.__might_resched
0.15 ± 7% +0.1 0.27 ± 15% perf-profile.self.cycles-pp.link_path_walk
0.14 ± 7% +0.1 0.27 ± 11% perf-profile.self.cycles-pp.open64
0.30 ± 9% +0.2 0.49 ± 12% perf-profile.self.cycles-pp.kmem_cache_alloc
0.20 ± 26% +0.2 0.42 ± 14% perf-profile.self.cycles-pp.__fsnotify_parent
0.08 ± 19% +0.3 0.39 ± 14% perf-profile.self.cycles-pp.locks_remove_file
0.22 ± 12% +0.4 0.58 ± 13% perf-profile.self.cycles-pp.locks_remove_posix
0.38 ± 8% +0.5 0.86 ± 13% perf-profile.self.cycles-pp.apparmor_file_free_security
0.86 ± 5% +0.6 1.42 ± 10% perf-profile.self.cycles-pp.__entry_text_start
2.57 ± 10% +0.6 3.20 ± 12% perf-profile.self.cycles-pp.__d_lookup_rcu
0.46 ± 5% +0.7 1.16 ± 13% perf-profile.self.cycles-pp.apparmor_file_alloc_security
0.58 ± 49% +0.7 1.33 ± 30% perf-profile.self.cycles-pp.__fput
1.16 ± 6% +0.8 1.98 ± 10% perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
2.29 ± 25% +1.3 3.61 ± 12% perf-profile.self.cycles-pp.syscall_exit_to_user_mode
2.07 ± 5% +1.4 3.44 ± 11% perf-profile.self.cycles-pp.syscall_return_via_sysret
2.51 ± 6% +1.5 4.00 ± 11% perf-profile.self.cycles-pp.apparmor_file_open
2.29 ± 7% +1.7 4.01 ± 12% perf-profile.self.cycles-pp.do_dentry_open
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
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