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Message-ID: <20210301073255.GC12822@xsang-OptiPlex-9020>
Date: Mon, 1 Mar 2021 15:32:55 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Alexey Gladkov <gladkov.alexey@...il.com>
Cc: 0day robot <lkp@...el.com>,
kernel test robot <oliver.sang@...el.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
ying.huang@...el.com, feng.tang@...el.com, zhengjun.xing@...el.com,
io-uring@...r.kernel.org,
Kernel Hardening <kernel-hardening@...ts.openwall.com>,
Linux Containers <containers@...ts.linux-foundation.org>,
linux-mm@...ck.org, Alexey Gladkov <legion@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Christian Brauner <christian.brauner@...ntu.com>,
"Eric W . Biederman" <ebiederm@...ssion.com>,
Jann Horn <jannh@...gle.com>, Jens Axboe <axboe@...nel.dk>,
Kees Cook <keescook@...omium.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Oleg Nesterov <oleg@...hat.com>
Subject: e1e57d56fe: stress-ng.access.ops_per_sec -41.6% regression
Greeting,
FYI, we noticed a -41.6% regression of stress-ng.access.ops_per_sec due to commit:
commit: e1e57d56fef0dd06daf3743f0948da86dfaf2f6f ("[PATCH v7 2/7] Add a reference to ucounts for each cred")
url: https://github.com/0day-ci/linux/commits/Alexey-Gladkov/Count-rlimits-in-each-user-namespace/20210222-175836
base: https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git next
in testcase: stress-ng
on test machine: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory
with following parameters:
nr_threads: 10%
disk: 1HDD
testtime: 60s
fs: ext4
class: filesystem
test: access
cpufreq_governor: performance
ucode: 0x5003006
In addition to that, the commit also has significant impact on the following tests:
+------------------+----------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.access.ops_per_sec -42.3% regression |
| test machine | 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory |
| test parameters | class=filesystem |
| | cpufreq_governor=performance |
| | disk=1HDD |
| | fs=xfs |
| | nr_threads=10% |
| | test=access |
| | testtime=60s |
| | ucode=0x5003006 |
+------------------+----------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.access.ops_per_sec -44.5% regression |
| test machine | 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory |
| test parameters | class=filesystem |
| | cpufreq_governor=performance |
| | disk=1HDD |
| | fs=f2fs |
| | nr_threads=10% |
| | test=access |
| | testtime=60s |
| | ucode=0x5003006 |
+------------------+----------------------------------------------------------------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml
bin/lkp run compatible-job.yaml
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
filesystem/gcc-9/performance/1HDD/ext4/x86_64-rhel-8.3/10%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp7/access/stress-ng/60s/0x5003006
commit:
a88f997967 ("Increase size of ucounts to atomic_long_t")
e1e57d56fe ("Add a reference to ucounts for each cred")
a88f9979677c6f55 e1e57d56fef0dd06daf3743f094
---------------- ---------------------------
%stddev %change %stddev
\ | \
2158451 -41.6% 1260149 ± 3% stress-ng.access.ops
35974 -41.6% 21002 ± 3% stress-ng.access.ops_per_sec
10.85 ± 10% -46.4% 5.82 stress-ng.time.user_time
0.21 ± 8% -0.1 0.12 mpstat.cpu.all.usr%
0.16 ± 4% -18.5% 0.13 ± 12% sched_debug.cfs_rq:/.nr_running.avg
884086 ± 13% -22.7% 683381 ± 8% sched_debug.cpu.max_idle_balance_cost.max
46438 ± 21% -55.1% 20855 ± 32% sched_debug.cpu.max_idle_balance_cost.stddev
81265 +4.1% 84595 ± 2% interrupts.CAL:Function_call_interrupts
83.33 ± 34% +4735.4% 4029 ± 96% interrupts.CPU42.NMI:Non-maskable_interrupts
83.33 ± 34% +4735.4% 4029 ± 96% interrupts.CPU42.PMI:Performance_monitoring_interrupts
93.17 ± 26% +4031.1% 3848 ± 96% interrupts.CPU43.NMI:Non-maskable_interrupts
93.17 ± 26% +4031.1% 3848 ± 96% interrupts.CPU43.PMI:Performance_monitoring_interrupts
93.33 ± 27% +2585.9% 2506 ±133% interrupts.CPU44.NMI:Non-maskable_interrupts
93.33 ± 27% +2585.9% 2506 ±133% interrupts.CPU44.PMI:Performance_monitoring_interrupts
93.33 ± 26% +2141.6% 2092 ±126% interrupts.CPU45.NMI:Non-maskable_interrupts
93.33 ± 26% +2141.6% 2092 ±126% interrupts.CPU45.PMI:Performance_monitoring_interrupts
106.00 ± 23% +2191.5% 2429 ±132% interrupts.CPU46.NMI:Non-maskable_interrupts
106.00 ± 23% +2191.5% 2429 ±132% interrupts.CPU46.PMI:Performance_monitoring_interrupts
115.33 ± 23% +1392.6% 1721 ±144% interrupts.CPU47.NMI:Non-maskable_interrupts
115.33 ± 23% +1392.6% 1721 ±144% interrupts.CPU47.PMI:Performance_monitoring_interrupts
1585 ±133% +201.4% 4778 ± 69% interrupts.CPU48.NMI:Non-maskable_interrupts
1585 ±133% +201.4% 4778 ± 69% interrupts.CPU48.PMI:Performance_monitoring_interrupts
101.17 ± 18% +53.7% 155.50 ± 6% interrupts.CPU51.NMI:Non-maskable_interrupts
101.17 ± 18% +53.7% 155.50 ± 6% interrupts.CPU51.PMI:Performance_monitoring_interrupts
112.83 ± 6% +883.3% 1109 ±193% interrupts.CPU54.NMI:Non-maskable_interrupts
112.83 ± 6% +883.3% 1109 ±193% interrupts.CPU54.PMI:Performance_monitoring_interrupts
101.00 ± 22% +1390.3% 1505 ±139% interrupts.CPU79.NMI:Non-maskable_interrupts
101.00 ± 22% +1390.3% 1505 ±139% interrupts.CPU79.PMI:Performance_monitoring_interrupts
111.00 ± 25% +344.6% 493.50 ±155% interrupts.CPU80.NMI:Non-maskable_interrupts
111.00 ± 25% +344.6% 493.50 ±155% interrupts.CPU80.PMI:Performance_monitoring_interrupts
8.32 ± 7% +54.7% 12.88 perf-stat.i.MPKI
2.865e+09 -30.8% 1.984e+09 ± 2% perf-stat.i.branch-instructions
0.76 ± 2% +0.1 0.84 perf-stat.i.branch-miss-rate%
20772880 -21.8% 16252845 perf-stat.i.branch-misses
1.85 ± 2% +52.3% 2.81 ± 2% perf-stat.i.cpi
2.734e+10 +3.6% 2.832e+10 perf-stat.i.cpu-cycles
4.122e+09 -33.7% 2.733e+09 perf-stat.i.dTLB-loads
2.299e+09 -36.4% 1.463e+09 ± 2% perf-stat.i.dTLB-stores
86.57 -5.3 81.28 perf-stat.i.iTLB-load-miss-rate%
15778062 ± 3% -39.1% 9607502 ± 3% perf-stat.i.iTLB-load-misses
1.479e+10 -32.4% 9.991e+09 ± 2% perf-stat.i.instructions
977.00 ± 2% +9.0% 1064 ± 3% perf-stat.i.instructions-per-iTLB-miss
0.55 ± 2% -33.4% 0.36 ± 2% perf-stat.i.ipc
0.28 +3.6% 0.29 perf-stat.i.metric.GHz
0.41 ± 42% -28.7% 0.29 ± 2% perf-stat.i.metric.K/sec
98.22 -32.9% 65.92 ± 2% perf-stat.i.metric.M/sec
88.10 ± 2% +7.9 96.03 perf-stat.i.node-load-miss-rate%
3379054 ± 14% +82.1% 6154210 ± 7% perf-stat.i.node-load-misses
441950 ± 29% -54.3% 202107 ± 15% perf-stat.i.node-loads
12643063 ± 9% -23.6% 9657658 ± 7% perf-stat.i.node-store-misses
8.36 ± 7% +55.9% 13.04 perf-stat.overall.MPKI
0.73 +0.1 0.82 perf-stat.overall.branch-miss-rate%
1.85 ± 2% +53.3% 2.84 ± 2% perf-stat.overall.cpi
87.69 -5.6 82.07 perf-stat.overall.iTLB-load-miss-rate%
937.91 ± 2% +11.0% 1041 ± 3% perf-stat.overall.instructions-per-iTLB-miss
0.54 ± 2% -34.8% 0.35 ± 2% perf-stat.overall.ipc
88.63 ± 2% +8.2 96.83 perf-stat.overall.node-load-miss-rate%
2.819e+09 -30.8% 1.952e+09 ± 2% perf-stat.ps.branch-instructions
20439060 -21.8% 15990109 perf-stat.ps.branch-misses
2.69e+10 +3.6% 2.786e+10 perf-stat.ps.cpu-cycles
4.057e+09 -33.7% 2.689e+09 perf-stat.ps.dTLB-loads
2.263e+09 -36.4% 1.439e+09 ± 2% perf-stat.ps.dTLB-stores
15526322 ± 3% -39.1% 9453069 ± 3% perf-stat.ps.iTLB-load-misses
1.455e+10 -32.4% 9.83e+09 ± 2% perf-stat.ps.instructions
3325252 ± 14% +82.1% 6055830 ± 7% perf-stat.ps.node-load-misses
434905 ± 29% -54.3% 198876 ± 15% perf-stat.ps.node-loads
12441875 ± 9% -23.6% 9503199 ± 7% perf-stat.ps.node-store-misses
9.193e+11 -32.7% 6.187e+11 ± 2% perf-stat.total.instructions
6.30 ± 10% -5.6 0.74 ± 12% perf-profile.calltrace.cycles-pp.free_uid.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
6.25 ± 10% -5.5 0.71 ± 13% perf-profile.calltrace.cycles-pp.refcount_dec_and_lock_irqsave.free_uid.put_cred_rcu.do_faccessat.do_syscall_64
6.23 ± 10% -5.5 0.71 ± 13% perf-profile.calltrace.cycles-pp.refcount_dec_not_one.refcount_dec_and_lock_irqsave.free_uid.put_cred_rcu.do_faccessat
5.64 ± 12% -4.1 1.52 ± 11% perf-profile.calltrace.cycles-pp.key_put.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
6.59 ± 19% -3.7 2.89 ± 12% perf-profile.calltrace.cycles-pp.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
6.50 ± 19% -3.7 2.84 ± 12% perf-profile.calltrace.cycles-pp.chmod_common.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.83 ± 20% -3.3 2.50 ± 13% perf-profile.calltrace.cycles-pp.notify_change.chmod_common.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.63 ± 21% -3.2 2.38 ± 13% perf-profile.calltrace.cycles-pp.ext4_setattr.notify_change.chmod_common.__x64_sys_fchmod.do_syscall_64
5.39 ± 19% -3.1 2.29 ± 13% perf-profile.calltrace.cycles-pp.__mark_inode_dirty.ext4_setattr.notify_change.chmod_common.__x64_sys_fchmod
4.48 ± 21% -2.6 1.87 ± 13% perf-profile.calltrace.cycles-pp.ext4_dirty_inode.__mark_inode_dirty.ext4_setattr.notify_change.chmod_common
4.53 ± 18% -2.4 2.09 ± 10% perf-profile.calltrace.cycles-pp.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.98 ± 22% -1.8 1.22 ± 9% perf-profile.calltrace.cycles-pp.apparmor_cred_prepare.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64
2.65 ± 17% -1.6 1.05 ± 14% perf-profile.calltrace.cycles-pp.__ext4_journal_start_sb.ext4_dirty_inode.__mark_inode_dirty.ext4_setattr.notify_change
3.02 ± 12% -1.5 1.50 ± 8% perf-profile.calltrace.cycles-pp.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.19 ± 14% -1.3 0.85 ± 13% perf-profile.calltrace.cycles-pp.jbd2__journal_start.__ext4_journal_start_sb.ext4_dirty_inode.__mark_inode_dirty.ext4_setattr
2.03 ± 15% -1.3 0.76 ± 13% perf-profile.calltrace.cycles-pp.start_this_handle.jbd2__journal_start.__ext4_journal_start_sb.ext4_dirty_inode.__mark_inode_dirty
2.77 ± 11% -1.2 1.57 ± 8% perf-profile.calltrace.cycles-pp.filename_lookup.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.38 ± 11% -1.1 1.29 ± 7% perf-profile.calltrace.cycles-pp.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.44 ± 11% -1.1 1.39 ± 8% perf-profile.calltrace.cycles-pp.path_lookupat.filename_lookup.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.01 ± 14% -1.0 0.96 ± 6% perf-profile.calltrace.cycles-pp.apparmor_cred_free.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64
1.78 ± 31% -1.0 0.78 ± 12% perf-profile.calltrace.cycles-pp.__ext4_mark_inode_dirty.ext4_dirty_inode.__mark_inode_dirty.ext4_setattr.notify_change
2.08 ± 12% -1.0 1.12 ± 7% perf-profile.calltrace.cycles-pp.vfs_statx.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.55 ± 11% -0.7 0.88 ± 11% perf-profile.calltrace.cycles-pp.user_path_at_empty.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.52 ± 11% -0.7 0.87 ± 11% perf-profile.calltrace.cycles-pp.getname_flags.user_path_at_empty.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.94 ± 9% -0.7 0.29 ±100% perf-profile.calltrace.cycles-pp.kfree.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64
1.43 ± 10% -0.6 0.80 ± 11% perf-profile.calltrace.cycles-pp.kmem_cache_alloc.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.44 ± 9% -0.6 0.81 ± 13% perf-profile.calltrace.cycles-pp.__kmalloc.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64
0.88 ± 9% -0.6 0.27 ±100% perf-profile.calltrace.cycles-pp.kmem_cache_free.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.33 ± 10% -0.6 0.74 ± 10% perf-profile.calltrace.cycles-pp.link_path_walk.path_lookupat.filename_lookup.do_faccessat.do_syscall_64
1.20 ± 11% -0.5 0.66 ± 12% perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.user_path_at_empty.do_faccessat.do_syscall_64
1.33 ± 27% +1.3 2.65 ± 12% perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
0.00 +1.4 1.38 ± 10% perf-profile.calltrace.cycles-pp.override_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
20.13 ± 10% +3.3 23.38 ± 9% perf-profile.calltrace.cycles-pp.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
19.93 ± 11% +3.7 23.61 ± 9% perf-profile.calltrace.cycles-pp.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +14.5 14.53 ± 8% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.get_ucounts.prepare_creds.do_faccessat
0.00 +15.0 15.01 ± 8% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.put_ucounts.put_cred_rcu.do_faccessat
0.00 +16.1 16.09 ± 8% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.get_ucounts.prepare_creds.do_faccessat.do_syscall_64
0.00 +16.4 16.42 ± 8% perf-profile.calltrace.cycles-pp.get_ucounts.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +16.5 16.55 ± 8% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.put_ucounts.put_cred_rcu.do_faccessat.do_syscall_64
0.00 +16.9 16.88 ± 8% perf-profile.calltrace.cycles-pp.put_ucounts.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
6.30 ± 10% -5.6 0.74 ± 12% perf-profile.children.cycles-pp.free_uid
6.26 ± 10% -5.5 0.72 ± 13% perf-profile.children.cycles-pp.refcount_dec_and_lock_irqsave
6.23 ± 10% -5.5 0.71 ± 13% perf-profile.children.cycles-pp.refcount_dec_not_one
5.66 ± 12% -4.1 1.54 ± 11% perf-profile.children.cycles-pp.key_put
6.59 ± 19% -3.7 2.89 ± 12% perf-profile.children.cycles-pp.__x64_sys_fchmod
6.50 ± 19% -3.7 2.84 ± 12% perf-profile.children.cycles-pp.chmod_common
5.83 ± 20% -3.3 2.50 ± 12% perf-profile.children.cycles-pp.notify_change
5.64 ± 21% -3.3 2.38 ± 13% perf-profile.children.cycles-pp.ext4_setattr
5.39 ± 19% -3.1 2.29 ± 13% perf-profile.children.cycles-pp.__mark_inode_dirty
4.48 ± 21% -2.6 1.87 ± 13% perf-profile.children.cycles-pp.ext4_dirty_inode
4.54 ± 18% -2.4 2.09 ± 10% perf-profile.children.cycles-pp.security_prepare_creds
2.98 ± 22% -1.8 1.22 ± 9% perf-profile.children.cycles-pp.apparmor_cred_prepare
2.65 ± 17% -1.6 1.05 ± 14% perf-profile.children.cycles-pp.__ext4_journal_start_sb
3.64 ± 11% -1.6 2.05 ± 8% perf-profile.children.cycles-pp.filename_lookup
3.02 ± 12% -1.5 1.50 ± 8% perf-profile.children.cycles-pp.security_cred_free
3.24 ± 11% -1.4 1.83 ± 8% perf-profile.children.cycles-pp.path_lookupat
2.19 ± 14% -1.3 0.85 ± 13% perf-profile.children.cycles-pp.jbd2__journal_start
2.04 ± 15% -1.3 0.77 ± 14% perf-profile.children.cycles-pp.start_this_handle
2.38 ± 11% -1.1 1.29 ± 6% perf-profile.children.cycles-pp.__do_sys_newfstatat
2.04 ± 14% -1.1 0.96 ± 6% perf-profile.children.cycles-pp.apparmor_cred_free
1.79 ± 31% -1.0 0.78 ± 13% perf-profile.children.cycles-pp.__ext4_mark_inode_dirty
2.08 ± 12% -1.0 1.12 ± 8% perf-profile.children.cycles-pp.vfs_statx
2.02 ± 12% -0.9 1.14 ± 10% perf-profile.children.cycles-pp.user_path_at_empty
1.98 ± 12% -0.9 1.12 ± 10% perf-profile.children.cycles-pp.getname_flags
1.89 ± 10% -0.8 1.08 ± 11% perf-profile.children.cycles-pp.kmem_cache_alloc
1.79 ± 10% -0.8 1.00 ± 10% perf-profile.children.cycles-pp.link_path_walk
1.53 ± 11% -0.7 0.85 ± 11% perf-profile.children.cycles-pp.strncpy_from_user
1.49 ± 9% -0.7 0.83 ± 12% perf-profile.children.cycles-pp.__kmalloc
1.05 ± 26% -0.6 0.48 ± 13% perf-profile.children.cycles-pp.ext4_mark_iloc_dirty
1.19 ± 10% -0.5 0.67 ± 8% perf-profile.children.cycles-pp.kmem_cache_free
0.90 ± 23% -0.5 0.42 ± 12% perf-profile.children.cycles-pp.ext4_do_update_inode
0.86 ± 13% -0.5 0.40 ± 14% perf-profile.children.cycles-pp.__ext4_journal_stop
0.76 ± 14% -0.4 0.34 ± 15% perf-profile.children.cycles-pp.jbd2_journal_stop
0.95 ± 9% -0.4 0.54 ± 12% perf-profile.children.cycles-pp.kfree
0.84 ± 12% -0.4 0.43 ± 12% perf-profile.children.cycles-pp.common_perm_cond
0.68 ± 37% -0.4 0.29 ± 13% perf-profile.children.cycles-pp.ext4_reserve_inode_write
0.74 ± 15% -0.4 0.35 ± 11% perf-profile.children.cycles-pp._raw_read_lock
0.79 ± 12% -0.4 0.40 ± 12% perf-profile.children.cycles-pp.common_perm
0.77 ± 12% -0.4 0.39 ± 11% perf-profile.children.cycles-pp.inode_permission
0.83 ± 12% -0.4 0.48 ± 10% perf-profile.children.cycles-pp.walk_component
0.45 ± 15% -0.3 0.13 ± 20% perf-profile.children.cycles-pp.add_transaction_credits
0.58 ± 12% -0.3 0.27 ± 8% perf-profile.children.cycles-pp.generic_permission
0.67 ± 11% -0.3 0.37 ± 12% perf-profile.children.cycles-pp.__check_object_size
0.59 ± 13% -0.3 0.34 ± 10% perf-profile.children.cycles-pp.complete_walk
0.56 ± 9% -0.2 0.31 ± 11% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.50 ± 10% -0.2 0.26 ± 9% perf-profile.children.cycles-pp.vfs_getattr
0.47 ± 12% -0.2 0.23 ± 15% perf-profile.children.cycles-pp.stop_this_handle
0.56 ± 13% -0.2 0.32 ± 10% perf-profile.children.cycles-pp.unlazy_walk
0.49 ± 11% -0.2 0.25 ± 9% perf-profile.children.cycles-pp.security_inode_getattr
0.42 ± 28% -0.2 0.19 ± 18% perf-profile.children.cycles-pp.ext4_journal_check_start
0.43 ± 12% -0.2 0.22 ± 14% perf-profile.children.cycles-pp.security_path_chmod
0.45 ± 10% -0.2 0.24 ± 13% perf-profile.children.cycles-pp.obj_cgroup_charge
0.38 ± 36% -0.2 0.17 ± 10% perf-profile.children.cycles-pp.ext4_get_inode_loc
0.44 ± 6% -0.2 0.24 ± 16% perf-profile.children.cycles-pp.refill_obj_stock
0.42 ± 10% -0.2 0.22 ± 9% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.37 ± 36% -0.2 0.17 ± 12% perf-profile.children.cycles-pp.__ext4_get_inode_loc
0.46 ± 10% -0.2 0.27 ± 10% perf-profile.children.cycles-pp.lookup_fast
0.44 ± 13% -0.2 0.25 ± 13% perf-profile.children.cycles-pp.__legitimize_path
0.41 ± 11% -0.2 0.24 ± 17% perf-profile.children.cycles-pp.___might_sleep
0.41 ± 9% -0.2 0.23 ± 6% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.26 ± 57% -0.2 0.09 ± 9% perf-profile.children.cycles-pp.ext4_inode_csum_set
0.27 ± 17% -0.2 0.10 ± 6% perf-profile.children.cycles-pp.capable_wrt_inode_uidgid
0.32 ± 36% -0.2 0.16 ± 12% perf-profile.children.cycles-pp.revert_creds
0.27 ± 33% -0.2 0.10 ± 14% perf-profile.children.cycles-pp.__ext4_journal_get_write_access
0.43 ± 10% -0.2 0.27 ± 12% perf-profile.children.cycles-pp.crc32c_pcl_intel_update
0.26 ± 17% -0.2 0.10 ± 6% perf-profile.children.cycles-pp.ns_capable_common
0.26 ± 16% -0.2 0.10 ± 6% perf-profile.children.cycles-pp.security_capable
0.23 ± 18% -0.2 0.08 ± 8% perf-profile.children.cycles-pp.apparmor_capable
0.36 ± 11% -0.2 0.21 ± 9% perf-profile.children.cycles-pp.path_put
0.32 ± 14% -0.1 0.17 ± 9% perf-profile.children.cycles-pp.__check_heap_object
0.35 ± 12% -0.1 0.21 ± 9% perf-profile.children.cycles-pp.dput
0.34 ± 11% -0.1 0.19 ± 9% perf-profile.children.cycles-pp.__entry_text_start
0.32 ± 10% -0.1 0.18 ± 12% perf-profile.children.cycles-pp.__d_lookup_rcu
0.19 ± 14% -0.1 0.07 ± 11% perf-profile.children.cycles-pp.__ext4_handle_dirty_metadata
0.30 ± 10% -0.1 0.18 ± 7% perf-profile.children.cycles-pp.path_init
0.28 ± 13% -0.1 0.16 ± 6% perf-profile.children.cycles-pp.cp_new_stat
0.27 ± 11% -0.1 0.16 ± 15% perf-profile.children.cycles-pp.__might_sleep
0.19 ± 34% -0.1 0.08 ± 10% perf-profile.children.cycles-pp.ext4_inode_csum
0.26 ± 27% -0.1 0.16 ± 17% perf-profile.children.cycles-pp.map_id_up
0.22 ± 14% -0.1 0.12 ± 14% perf-profile.children.cycles-pp._cond_resched
0.15 ± 17% -0.1 0.05 ± 45% perf-profile.children.cycles-pp.jbd2_journal_get_write_access
0.22 ± 15% -0.1 0.13 ± 15% perf-profile.children.cycles-pp.__legitimize_mnt
0.22 ± 11% -0.1 0.13 ± 14% perf-profile.children.cycles-pp.__wake_up_common_lock
0.19 ± 13% -0.1 0.10 ± 13% perf-profile.children.cycles-pp.__mod_memcg_state
0.17 ± 12% -0.1 0.09 ± 13% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.18 ± 11% -0.1 0.10 ± 15% perf-profile.children.cycles-pp.step_into
0.17 ± 13% -0.1 0.09 ± 10% perf-profile.children.cycles-pp.rcu_read_unlock_strict
0.17 ± 11% -0.1 0.10 ± 16% perf-profile.children.cycles-pp.lockref_get_not_dead
0.17 ± 13% -0.1 0.10 ± 17% perf-profile.children.cycles-pp.memset_erms
0.15 ± 15% -0.1 0.08 ± 13% perf-profile.children.cycles-pp._copy_to_user
0.16 ± 12% -0.1 0.10 ± 15% perf-profile.children.cycles-pp.__might_fault
0.10 ± 16% -0.1 0.05 ± 47% perf-profile.children.cycles-pp.__put_cred
0.13 ± 17% -0.1 0.08 ± 9% perf-profile.children.cycles-pp.lockref_put_return
0.08 ± 13% -0.1 0.03 ± 99% perf-profile.children.cycles-pp.__find_get_block
0.12 ± 14% -0.1 0.06 ± 14% perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
0.11 ± 16% -0.1 0.06 ± 11% perf-profile.children.cycles-pp.rcu_all_qs
0.28 ± 7% -0.1 0.23 ± 5% perf-profile.children.cycles-pp.scheduler_tick
0.09 ± 19% -0.0 0.05 ± 45% perf-profile.children.cycles-pp.security_inode_permission
0.07 ± 9% -0.0 0.03 ± 99% perf-profile.children.cycles-pp.terminate_walk
0.11 ± 12% -0.0 0.06 ± 11% perf-profile.children.cycles-pp.__virt_addr_valid
0.11 ± 9% -0.0 0.07 ± 18% perf-profile.children.cycles-pp.__getblk_gfp
0.10 ± 13% -0.0 0.06 ± 13% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.11 ± 9% -0.0 0.08 ± 9% perf-profile.children.cycles-pp.calc_global_load_tick
0.09 ± 12% -0.0 0.06 ± 13% perf-profile.children.cycles-pp.__fget_light
0.08 ± 8% +0.3 0.39 ± 9% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
0.14 ± 12% +1.2 1.39 ± 10% perf-profile.children.cycles-pp.override_creds
1.34 ± 27% +1.3 2.66 ± 12% perf-profile.children.cycles-pp.menu_select
20.16 ± 10% +3.2 23.40 ± 9% perf-profile.children.cycles-pp.put_cred_rcu
19.94 ± 11% +3.7 23.62 ± 9% perf-profile.children.cycles-pp.prepare_creds
0.00 +16.4 16.43 ± 8% perf-profile.children.cycles-pp.get_ucounts
0.00 +16.9 16.88 ± 8% perf-profile.children.cycles-pp.put_ucounts
0.00 +29.5 29.55 ± 8% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
0.22 ± 8% +32.6 32.80 ± 8% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
13.87 ± 11% -9.6 4.27 ± 13% perf-profile.self.cycles-pp.prepare_creds
6.20 ± 10% -5.5 0.70 ± 13% perf-profile.self.cycles-pp.refcount_dec_not_one
5.62 ± 12% -4.1 1.52 ± 11% perf-profile.self.cycles-pp.key_put
5.18 ± 9% -2.4 2.73 ± 10% perf-profile.self.cycles-pp.put_cred_rcu
2.96 ± 22% -1.7 1.22 ± 10% perf-profile.self.cycles-pp.apparmor_cred_prepare
2.02 ± 15% -1.1 0.96 ± 6% perf-profile.self.cycles-pp.apparmor_cred_free
0.85 ± 16% -0.6 0.28 ± 18% perf-profile.self.cycles-pp.start_this_handle
0.96 ± 9% -0.4 0.51 ± 9% perf-profile.self.cycles-pp.link_path_walk
0.96 ± 10% -0.4 0.57 ± 12% perf-profile.self.cycles-pp.kmem_cache_alloc
0.78 ± 12% -0.4 0.40 ± 12% perf-profile.self.cycles-pp.common_perm
0.73 ± 15% -0.4 0.35 ± 11% perf-profile.self.cycles-pp._raw_read_lock
0.83 ± 10% -0.4 0.48 ± 8% perf-profile.self.cycles-pp.kmem_cache_free
0.45 ± 15% -0.3 0.13 ± 18% perf-profile.self.cycles-pp.add_transaction_credits
0.71 ± 11% -0.3 0.39 ± 8% perf-profile.self.cycles-pp.strncpy_from_user
0.73 ± 11% -0.3 0.43 ± 14% perf-profile.self.cycles-pp.__kmalloc
0.62 ± 11% -0.3 0.36 ± 14% perf-profile.self.cycles-pp.kfree
0.56 ± 9% -0.2 0.31 ± 11% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.38 ± 30% -0.2 0.17 ± 19% perf-profile.self.cycles-pp.ext4_journal_check_start
0.44 ± 11% -0.2 0.23 ± 14% perf-profile.self.cycles-pp.obj_cgroup_charge
0.43 ± 6% -0.2 0.23 ± 14% perf-profile.self.cycles-pp.refill_obj_stock
0.41 ± 11% -0.2 0.23 ± 17% perf-profile.self.cycles-pp.___might_sleep
0.36 ± 8% -0.2 0.19 ± 8% perf-profile.self.cycles-pp.get_obj_cgroup_from_current
0.32 ± 36% -0.2 0.15 ± 11% perf-profile.self.cycles-pp.revert_creds
0.24 ± 18% -0.2 0.07 ± 18% perf-profile.self.cycles-pp.jbd2_journal_stop
0.42 ± 11% -0.2 0.26 ± 12% perf-profile.self.cycles-pp.crc32c_pcl_intel_update
0.39 ± 13% -0.2 0.23 ± 12% perf-profile.self.cycles-pp.do_faccessat
0.23 ± 18% -0.2 0.08 ± 8% perf-profile.self.cycles-pp.apparmor_capable
0.25 ± 16% -0.2 0.10 ± 23% perf-profile.self.cycles-pp.stop_this_handle
0.31 ± 14% -0.1 0.16 ± 10% perf-profile.self.cycles-pp.__check_heap_object
0.34 ± 11% -0.1 0.19 ± 10% perf-profile.self.cycles-pp.__entry_text_start
0.31 ± 9% -0.1 0.18 ± 12% perf-profile.self.cycles-pp.__d_lookup_rcu
0.28 ± 9% -0.1 0.15 ± 11% perf-profile.self.cycles-pp.generic_permission
0.26 ± 11% -0.1 0.15 ± 9% perf-profile.self.cycles-pp.path_init
0.24 ± 13% -0.1 0.13 ± 16% perf-profile.self.cycles-pp.__check_object_size
0.22 ± 21% -0.1 0.12 ± 19% perf-profile.self.cycles-pp.ext4_do_update_inode
0.19 ± 39% -0.1 0.09 ± 13% perf-profile.self.cycles-pp.__ext4_get_inode_loc
0.26 ± 29% -0.1 0.16 ± 18% perf-profile.self.cycles-pp.map_id_up
0.25 ± 11% -0.1 0.15 ± 14% perf-profile.self.cycles-pp.__might_sleep
0.22 ± 14% -0.1 0.13 ± 15% perf-profile.self.cycles-pp.__legitimize_mnt
0.20 ± 15% -0.1 0.12 ± 18% perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.19 ± 13% -0.1 0.10 ± 13% perf-profile.self.cycles-pp.__mod_memcg_state
0.19 ± 16% -0.1 0.11 ± 12% perf-profile.self.cycles-pp.walk_component
0.20 ± 7% -0.1 0.12 ± 14% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.21 ± 13% -0.1 0.13 ± 23% perf-profile.self.cycles-pp.inode_permission
0.17 ± 11% -0.1 0.10 ± 16% perf-profile.self.cycles-pp.step_into
0.17 ± 11% -0.1 0.10 ± 16% perf-profile.self.cycles-pp.lockref_get_not_dead
0.14 ± 17% -0.1 0.08 ± 14% perf-profile.self.cycles-pp.lookup_fast
0.16 ± 14% -0.1 0.09 ± 19% perf-profile.self.cycles-pp.memset_erms
0.11 ± 12% -0.1 0.05 ± 70% perf-profile.self.cycles-pp._cond_resched
0.10 ± 19% -0.1 0.04 ± 72% perf-profile.self.cycles-pp.__put_cred
0.13 ± 16% -0.1 0.07 ± 6% perf-profile.self.cycles-pp.getname_flags
0.13 ± 19% -0.1 0.08 ± 22% perf-profile.self.cycles-pp.filename_lookup
0.12 ± 12% -0.1 0.07 ± 14% perf-profile.self.cycles-pp.rcu_read_unlock_strict
0.12 ± 14% -0.1 0.06 ± 14% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
0.12 ± 18% -0.1 0.07 ± 5% perf-profile.self.cycles-pp.lockref_put_return
0.10 ± 10% -0.0 0.05 ± 46% perf-profile.self.cycles-pp.__virt_addr_valid
0.09 ± 19% -0.0 0.05 ± 45% perf-profile.self.cycles-pp.security_inode_permission
0.08 ± 13% -0.0 0.04 ± 73% perf-profile.self.cycles-pp.__fget_light
0.10 ± 18% -0.0 0.06 ± 18% perf-profile.self.cycles-pp.notify_change
0.10 ± 13% -0.0 0.06 ± 13% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.10 ± 18% -0.0 0.06 ± 11% perf-profile.self.cycles-pp.path_lookupat
0.11 ± 9% -0.0 0.08 ± 9% perf-profile.self.cycles-pp.calc_global_load_tick
0.07 ± 10% +0.2 0.23 ± 11% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.00 +0.2 0.18 ± 16% perf-profile.self.cycles-pp.get_ucounts
0.00 +0.2 0.18 ± 16% perf-profile.self.cycles-pp.put_ucounts
0.65 ± 23% +0.8 1.48 ± 14% perf-profile.self.cycles-pp.cpuidle_enter_state
0.13 ± 11% +1.2 1.38 ± 10% perf-profile.self.cycles-pp.override_creds
0.79 ± 43% +1.3 2.12 ± 16% perf-profile.self.cycles-pp.menu_select
0.22 ± 7% +3.0 3.25 ± 10% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.00 +29.5 29.55 ± 8% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
stress-ng.access.ops
2.6e+06 +-----------------------------------------------------------------+
| +. |
2.4e+06 |-+ : ++. +. +.++.+ .+ |
| + : ++.+ .+.+ + + +.++. .++. +. |
2.2e+06 |.++.++. :+: + + + ++. +.++.++.++.|
2e+06 |-+ + + + |
| |
1.8e+06 |-+ |
| |
1.6e+06 |-+ |
1.4e+06 |-+ |
| O O O O OO |
1.2e+06 |-OO O O OO OO OO OO OO OO O OO OO OO O O |
| |
1e+06 +-----------------------------------------------------------------+
stress-ng.access.ops_per_sec
45000 +-------------------------------------------------------------------+
| |
40000 |-+ ++.+ |
| : : .++.++.+.++.++.+.++. .+ |
|.+ +. +. : +.+.++ ++ +.+.++.+ .+.++. .++.|
35000 |-++.+ + + + ++ |
| |
30000 |-+ |
| |
25000 |-+ |
| |
| OO OO OO O OO OO O O O O O OO OO OO |
20000 |-+ O O OO O OO O O |
| |
15000 +-------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
***************************************************************************************************
lkp-csl-2sp7: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
filesystem/gcc-9/performance/1HDD/xfs/x86_64-rhel-8.3/10%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp7/access/stress-ng/60s/0x5003006
commit:
a88f997967 ("Increase size of ucounts to atomic_long_t")
e1e57d56fe ("Add a reference to ucounts for each cred")
a88f9979677c6f55 e1e57d56fef0dd06daf3743f094
---------------- ---------------------------
%stddev %change %stddev
\ | \
2101125 -42.3% 1213160 ± 4% stress-ng.access.ops
35018 -42.3% 20219 ± 4% stress-ng.access.ops_per_sec
10.19 -41.9% 5.92 ± 4% stress-ng.time.user_time
0.27 ± 6% -0.1 0.20 ± 2% mpstat.cpu.all.usr%
303.99 -1.3% 300.00 pmeter.Average_Active_Power
1136 ± 10% +35.9% 1545 ± 19% sched_debug.cfs_rq:/.runnable_avg.max
1135 ± 10% +36.0% 1545 ± 19% sched_debug.cfs_rq:/.util_avg.max
31.83 ± 9% -15.7% 26.83 ± 7% sched_debug.cpu.nr_uninterruptible.max
16112 ± 11% +23.7% 19924 ± 10% numa-meminfo.node0.Mapped
2090 ± 19% +38.8% 2900 ± 17% numa-meminfo.node0.PageTables
3068 ± 98% +180.5% 8607 ± 42% numa-meminfo.node0.Shmem
21447 ± 9% -18.2% 17535 ± 11% numa-meminfo.node1.Mapped
16587 ± 20% -33.9% 10971 ± 31% numa-meminfo.node1.Shmem
4093 ± 11% +23.8% 5069 ± 10% numa-vmstat.node0.nr_mapped
521.00 ± 19% +37.5% 716.17 ± 16% numa-vmstat.node0.nr_page_table_pages
766.83 ± 99% +180.5% 2151 ± 42% numa-vmstat.node0.nr_shmem
5432 ± 9% -18.4% 4433 ± 11% numa-vmstat.node1.nr_mapped
4147 ± 20% -33.8% 2744 ± 31% numa-vmstat.node1.nr_shmem
106.33 ± 24% +1398.7% 1593 ±178% interrupts.CPU15.NMI:Non-maskable_interrupts
106.33 ± 24% +1398.7% 1593 ±178% interrupts.CPU15.PMI:Performance_monitoring_interrupts
101.33 ± 32% +1158.9% 1275 ±196% interrupts.CPU16.NMI:Non-maskable_interrupts
101.33 ± 32% +1158.9% 1275 ±196% interrupts.CPU16.PMI:Performance_monitoring_interrupts
105.00 ± 23% +1277.5% 1446 ±199% interrupts.CPU17.NMI:Non-maskable_interrupts
105.00 ± 23% +1277.5% 1446 ±199% interrupts.CPU17.PMI:Performance_monitoring_interrupts
117.33 ± 7% +960.7% 1244 ±195% interrupts.CPU21.NMI:Non-maskable_interrupts
117.33 ± 7% +960.7% 1244 ±195% interrupts.CPU21.PMI:Performance_monitoring_interrupts
114.33 ± 9% +2296.1% 2739 ±133% interrupts.CPU22.NMI:Non-maskable_interrupts
114.33 ± 9% +2296.1% 2739 ±133% interrupts.CPU22.PMI:Performance_monitoring_interrupts
122.33 ± 4% +1530.1% 1994 ±139% interrupts.CPU3.NMI:Non-maskable_interrupts
122.33 ± 4% +1530.1% 1994 ±139% interrupts.CPU3.PMI:Performance_monitoring_interrupts
118.00 ± 9% +1711.9% 2138 ±130% interrupts.CPU46.NMI:Non-maskable_interrupts
118.00 ± 9% +1711.9% 2138 ±130% interrupts.CPU46.PMI:Performance_monitoring_interrupts
120.17 ± 23% +964.5% 1279 ±182% interrupts.CPU52.NMI:Non-maskable_interrupts
120.17 ± 23% +964.5% 1279 ±182% interrupts.CPU52.PMI:Performance_monitoring_interrupts
86.50 ± 36% +1641.4% 1506 ±190% interrupts.CPU58.NMI:Non-maskable_interrupts
86.50 ± 36% +1641.4% 1506 ±190% interrupts.CPU58.PMI:Performance_monitoring_interrupts
109.83 ± 21% +873.1% 1068 ±191% interrupts.CPU69.NMI:Non-maskable_interrupts
109.83 ± 21% +873.1% 1068 ±191% interrupts.CPU69.PMI:Performance_monitoring_interrupts
103.33 ± 22% +490.3% 610.00 ±164% interrupts.CPU87.NMI:Non-maskable_interrupts
103.33 ± 22% +490.3% 610.00 ±164% interrupts.CPU87.PMI:Performance_monitoring_interrupts
109.17 ± 27% +1859.8% 2139 ±139% interrupts.CPU94.NMI:Non-maskable_interrupts
109.17 ± 27% +1859.8% 2139 ±139% interrupts.CPU94.PMI:Performance_monitoring_interrupts
8.31 ± 7% +53.2% 12.74 ± 2% perf-stat.i.MPKI
2.845e+09 -30.2% 1.985e+09 ± 2% perf-stat.i.branch-instructions
0.84 ± 3% +0.1 0.95 perf-stat.i.branch-miss-rate%
22369243 ± 4% -16.3% 18726571 ± 2% perf-stat.i.branch-misses
1.86 +53.6% 2.86 ± 3% perf-stat.i.cpi
2.766e+10 +3.9% 2.873e+10 perf-stat.i.cpu-cycles
4.076e+09 ± 2% -33.0% 2.732e+09 ± 4% perf-stat.i.dTLB-loads
2.322e+09 -36.8% 1.467e+09 ± 3% perf-stat.i.dTLB-stores
83.49 -7.8 75.66 perf-stat.i.iTLB-load-miss-rate%
14193692 -41.6% 8290248 ± 2% perf-stat.i.iTLB-load-misses
1.479e+10 -32.0% 1.005e+10 ± 2% perf-stat.i.instructions
1146 +12.8% 1293 perf-stat.i.instructions-per-iTLB-miss
0.55 -33.1% 0.37 ± 3% perf-stat.i.ipc
0.29 +3.9% 0.30 perf-stat.i.metric.GHz
97.79 -32.5% 65.96 ± 3% perf-stat.i.metric.M/sec
93.66 +3.2 96.82 perf-stat.i.node-load-miss-rate%
5224551 ± 8% +42.9% 7464161 ± 5% perf-stat.i.node-load-misses
319707 ± 17% -42.2% 184671 ± 9% perf-stat.i.node-loads
13233767 ± 9% -23.4% 10143303 ± 8% perf-stat.i.node-store-misses
8.40 ± 7% +52.0% 12.77 ± 2% perf-stat.overall.MPKI
0.79 ± 3% +0.2 0.94 perf-stat.overall.branch-miss-rate%
1.87 +52.9% 2.86 ± 3% perf-stat.overall.cpi
0.00 ± 41% +0.0 0.00 ± 30% perf-stat.overall.dTLB-load-miss-rate%
0.00 ± 12% +0.0 0.00 ± 16% perf-stat.overall.dTLB-store-miss-rate%
84.65 -8.3 76.34 perf-stat.overall.iTLB-load-miss-rate%
1041 +16.4% 1212 perf-stat.overall.instructions-per-iTLB-miss
0.53 -34.5% 0.35 ± 3% perf-stat.overall.ipc
94.24 +3.3 97.58 perf-stat.overall.node-load-miss-rate%
2.8e+09 -30.2% 1.953e+09 ± 2% perf-stat.ps.branch-instructions
21989609 ± 4% -16.2% 18425367 ± 2% perf-stat.ps.branch-misses
2.722e+10 +3.8% 2.827e+10 perf-stat.ps.cpu-cycles
4.01e+09 ± 2% -33.0% 2.688e+09 ± 4% perf-stat.ps.dTLB-loads
2.285e+09 -36.8% 1.443e+09 ± 3% perf-stat.ps.dTLB-stores
13967002 -41.6% 8156895 ± 2% perf-stat.ps.iTLB-load-misses
1.455e+10 -32.0% 9.888e+09 ± 2% perf-stat.ps.instructions
5142072 ± 8% +42.8% 7344021 ± 5% perf-stat.ps.node-load-misses
314656 ± 17% -42.2% 181724 ± 9% perf-stat.ps.node-loads
13025851 ± 9% -23.4% 9980421 ± 8% perf-stat.ps.node-store-misses
9.19e+11 -32.1% 6.244e+11 ± 3% perf-stat.total.instructions
5.77 ± 6% -5.0 0.73 ± 10% perf-profile.calltrace.cycles-pp.free_uid.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.73 ± 6% -5.0 0.71 ± 10% perf-profile.calltrace.cycles-pp.refcount_dec_and_lock_irqsave.free_uid.put_cred_rcu.do_faccessat.do_syscall_64
5.71 ± 6% -5.0 0.70 ± 10% perf-profile.calltrace.cycles-pp.refcount_dec_not_one.refcount_dec_and_lock_irqsave.free_uid.put_cred_rcu.do_faccessat
8.88 ± 11% -4.7 4.16 ± 8% perf-profile.calltrace.cycles-pp.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.78 ± 11% -4.7 4.10 ± 8% perf-profile.calltrace.cycles-pp.chmod_common.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.05 ± 11% -4.3 3.74 ± 8% perf-profile.calltrace.cycles-pp.notify_change.chmod_common.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
7.84 ± 11% -4.2 3.60 ± 8% perf-profile.calltrace.cycles-pp.xfs_vn_setattr.notify_change.chmod_common.__x64_sys_fchmod.do_syscall_64
7.77 ± 11% -4.2 3.56 ± 8% perf-profile.calltrace.cycles-pp.xfs_setattr_nonsize.xfs_vn_setattr.notify_change.chmod_common.__x64_sys_fchmod
5.72 ± 11% -4.2 1.56 ± 12% perf-profile.calltrace.cycles-pp.key_put.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.83 ± 13% -2.8 1.99 ± 10% perf-profile.calltrace.cycles-pp.__xfs_trans_commit.xfs_setattr_nonsize.xfs_vn_setattr.notify_change.chmod_common
4.70 ± 13% -2.8 1.92 ± 10% perf-profile.calltrace.cycles-pp.xfs_log_commit_cil.__xfs_trans_commit.xfs_setattr_nonsize.xfs_vn_setattr.notify_change
4.90 ± 14% -2.7 2.19 ± 9% perf-profile.calltrace.cycles-pp.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.29 ± 16% -2.0 1.32 ± 10% perf-profile.calltrace.cycles-pp.apparmor_cred_prepare.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64
3.16 ± 9% -1.5 1.62 ± 10% perf-profile.calltrace.cycles-pp.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.14 ± 12% -1.3 0.82 ± 11% perf-profile.calltrace.cycles-pp.xlog_cil_insert_items.xfs_log_commit_cil.__xfs_trans_commit.xfs_setattr_nonsize.xfs_vn_setattr
2.85 ± 10% -1.3 1.59 ± 8% perf-profile.calltrace.cycles-pp.filename_lookup.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.46 ± 8% -1.2 1.30 ± 10% perf-profile.calltrace.cycles-pp.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.53 ± 10% -1.1 1.40 ± 8% perf-profile.calltrace.cycles-pp.path_lookupat.filename_lookup.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.14 ± 8% -1.1 1.09 ± 11% perf-profile.calltrace.cycles-pp.apparmor_cred_free.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64
2.17 ± 9% -1.0 1.13 ± 10% perf-profile.calltrace.cycles-pp.vfs_statx.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.66 ± 13% -0.8 0.84 ± 6% perf-profile.calltrace.cycles-pp.xfs_trans_alloc.xfs_setattr_nonsize.xfs_vn_setattr.notify_change.chmod_common
1.43 ± 13% -0.7 0.71 ± 7% perf-profile.calltrace.cycles-pp.xfs_trans_reserve.xfs_trans_alloc.xfs_setattr_nonsize.xfs_vn_setattr.notify_change
1.39 ± 14% -0.7 0.69 ± 7% perf-profile.calltrace.cycles-pp.xfs_log_reserve.xfs_trans_reserve.xfs_trans_alloc.xfs_setattr_nonsize.xfs_vn_setattr
1.50 ± 10% -0.7 0.81 ± 10% perf-profile.calltrace.cycles-pp.__kmalloc.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64
1.46 ± 10% -0.7 0.80 ± 10% perf-profile.calltrace.cycles-pp.kmem_cache_alloc.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.92 ± 10% -0.7 0.26 ±100% perf-profile.calltrace.cycles-pp.filename_lookup.vfs_statx.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.55 ± 10% -0.6 0.91 ± 8% perf-profile.calltrace.cycles-pp.user_path_at_empty.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.52 ± 10% -0.6 0.89 ± 8% perf-profile.calltrace.cycles-pp.getname_flags.user_path_at_empty.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.38 ± 9% -0.6 0.75 ± 9% perf-profile.calltrace.cycles-pp.link_path_walk.path_lookupat.filename_lookup.do_faccessat.do_syscall_64
0.96 ± 12% -0.6 0.37 ± 70% perf-profile.calltrace.cycles-pp.kfree.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64
0.89 ± 9% -0.5 0.36 ± 70% perf-profile.calltrace.cycles-pp.kmem_cache_free.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.18 ± 10% -0.5 0.67 ± 9% perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.user_path_at_empty.do_faccessat.do_syscall_64
0.00 +1.5 1.52 ± 17% perf-profile.calltrace.cycles-pp.override_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.47 ± 38% +2.4 3.89 ± 57% perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
0.00 +15.2 15.20 ± 12% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.get_ucounts.prepare_creds.do_faccessat
0.00 +15.6 15.63 ± 12% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.put_ucounts.put_cred_rcu.do_faccessat
0.00 +16.8 16.78 ± 12% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.get_ucounts.prepare_creds.do_faccessat.do_syscall_64
0.00 +17.1 17.12 ± 12% perf-profile.calltrace.cycles-pp.get_ucounts.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +17.2 17.23 ± 12% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.put_ucounts.put_cred_rcu.do_faccessat.do_syscall_64
0.00 +17.6 17.57 ± 12% perf-profile.calltrace.cycles-pp.put_ucounts.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.77 ± 6% -5.0 0.73 ± 10% perf-profile.children.cycles-pp.free_uid
5.74 ± 6% -5.0 0.72 ± 9% perf-profile.children.cycles-pp.refcount_dec_and_lock_irqsave
5.71 ± 6% -5.0 0.70 ± 10% perf-profile.children.cycles-pp.refcount_dec_not_one
8.88 ± 11% -4.7 4.16 ± 8% perf-profile.children.cycles-pp.__x64_sys_fchmod
8.78 ± 11% -4.7 4.10 ± 8% perf-profile.children.cycles-pp.chmod_common
8.05 ± 11% -4.3 3.74 ± 8% perf-profile.children.cycles-pp.notify_change
7.85 ± 11% -4.2 3.60 ± 8% perf-profile.children.cycles-pp.xfs_vn_setattr
7.78 ± 11% -4.2 3.56 ± 8% perf-profile.children.cycles-pp.xfs_setattr_nonsize
5.74 ± 11% -4.2 1.57 ± 13% perf-profile.children.cycles-pp.key_put
4.83 ± 13% -2.8 1.99 ± 10% perf-profile.children.cycles-pp.__xfs_trans_commit
4.71 ± 13% -2.8 1.92 ± 10% perf-profile.children.cycles-pp.xfs_log_commit_cil
4.90 ± 14% -2.7 2.19 ± 10% perf-profile.children.cycles-pp.security_prepare_creds
3.28 ± 48% -2.6 0.71 ±113% perf-profile.children.cycles-pp.start_kernel
3.29 ± 16% -2.0 1.32 ± 10% perf-profile.children.cycles-pp.apparmor_cred_prepare
3.79 ± 10% -1.7 2.08 ± 8% perf-profile.children.cycles-pp.filename_lookup
3.39 ± 10% -1.5 1.85 ± 9% perf-profile.children.cycles-pp.path_lookupat
3.16 ± 9% -1.5 1.62 ± 10% perf-profile.children.cycles-pp.security_cred_free
2.15 ± 12% -1.3 0.83 ± 10% perf-profile.children.cycles-pp.xlog_cil_insert_items
2.47 ± 8% -1.2 1.30 ± 10% perf-profile.children.cycles-pp.__do_sys_newfstatat
2.16 ± 9% -1.1 1.09 ± 11% perf-profile.children.cycles-pp.apparmor_cred_free
2.17 ± 10% -1.0 1.14 ± 9% perf-profile.children.cycles-pp.vfs_statx
1.62 ± 13% -1.0 0.60 ± 13% perf-profile.children.cycles-pp._raw_spin_lock
2.11 ± 10% -0.9 1.22 ± 10% perf-profile.children.cycles-pp.kmem_cache_alloc
1.87 ± 9% -0.9 1.01 ± 9% perf-profile.children.cycles-pp.link_path_walk
2.02 ± 10% -0.8 1.17 ± 8% perf-profile.children.cycles-pp.user_path_at_empty
1.99 ± 10% -0.8 1.15 ± 7% perf-profile.children.cycles-pp.getname_flags
1.67 ± 13% -0.8 0.84 ± 6% perf-profile.children.cycles-pp.xfs_trans_alloc
1.43 ± 13% -0.7 0.71 ± 7% perf-profile.children.cycles-pp.xfs_trans_reserve
1.40 ± 14% -0.7 0.69 ± 6% perf-profile.children.cycles-pp.xfs_log_reserve
1.54 ± 10% -0.7 0.84 ± 10% perf-profile.children.cycles-pp.__kmalloc
1.52 ± 10% -0.7 0.85 ± 7% perf-profile.children.cycles-pp.strncpy_from_user
1.06 ± 18% -0.6 0.44 ± 12% perf-profile.children.cycles-pp.xfs_log_ticket_ungrant
1.21 ± 9% -0.5 0.69 ± 9% perf-profile.children.cycles-pp.kmem_cache_free
0.94 ± 9% -0.5 0.43 ± 8% perf-profile.children.cycles-pp.common_perm_cond
0.89 ± 10% -0.5 0.39 ± 8% perf-profile.children.cycles-pp.common_perm
0.97 ± 12% -0.4 0.54 ± 11% perf-profile.children.cycles-pp.kfree
0.80 ± 8% -0.4 0.40 ± 10% perf-profile.children.cycles-pp.inode_permission
0.86 ± 8% -0.4 0.48 ± 10% perf-profile.children.cycles-pp.walk_component
0.56 ± 22% -0.3 0.21 ± 10% perf-profile.children.cycles-pp.xlog_grant_add_space
0.61 ± 8% -0.3 0.29 ± 11% perf-profile.children.cycles-pp.generic_permission
0.52 ± 26% -0.3 0.19 ± 48% perf-profile.children.cycles-pp.xfs_trans_ijoin
0.67 ± 9% -0.3 0.37 ± 7% perf-profile.children.cycles-pp.__check_object_size
0.54 ± 10% -0.3 0.25 ± 11% perf-profile.children.cycles-pp.vfs_getattr
0.64 ± 11% -0.3 0.34 ± 12% perf-profile.children.cycles-pp.complete_walk
0.54 ± 9% -0.3 0.24 ± 10% perf-profile.children.cycles-pp.security_inode_getattr
0.61 ± 12% -0.3 0.33 ± 7% perf-profile.children.cycles-pp.down_read
0.59 ± 12% -0.3 0.33 ± 11% perf-profile.children.cycles-pp.unlazy_walk
0.48 ± 9% -0.3 0.22 ± 9% perf-profile.children.cycles-pp.security_path_chmod
0.56 ± 12% -0.2 0.31 ± 7% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.45 ± 14% -0.2 0.23 ± 9% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.45 ± 12% -0.2 0.23 ± 12% perf-profile.children.cycles-pp.obj_cgroup_charge
0.47 ± 7% -0.2 0.26 ± 8% perf-profile.children.cycles-pp.lookup_fast
0.46 ± 10% -0.2 0.26 ± 13% perf-profile.children.cycles-pp.__legitimize_path
0.44 ± 9% -0.2 0.24 ± 8% perf-profile.children.cycles-pp.xlog_grant_push_ail
0.43 ± 9% -0.2 0.24 ± 8% perf-profile.children.cycles-pp.xlog_grant_push_threshold
0.43 ± 9% -0.2 0.24 ± 8% perf-profile.children.cycles-pp.xlog_space_left
0.33 ± 23% -0.2 0.14 ± 13% perf-profile.children.cycles-pp.revert_creds
0.42 ± 7% -0.2 0.24 ± 11% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.29 ± 11% -0.2 0.11 ± 13% perf-profile.children.cycles-pp.capable_wrt_inode_uidgid
0.41 ± 11% -0.2 0.24 ± 8% perf-profile.children.cycles-pp.___might_sleep
0.28 ± 11% -0.2 0.11 ± 10% perf-profile.children.cycles-pp.ns_capable_common
0.28 ± 11% -0.2 0.10 ± 10% perf-profile.children.cycles-pp.security_capable
0.42 ± 13% -0.2 0.25 ± 16% perf-profile.children.cycles-pp.refill_obj_stock
0.26 ± 12% -0.2 0.09 ± 11% perf-profile.children.cycles-pp.apparmor_capable
0.36 ± 10% -0.2 0.20 ± 11% perf-profile.children.cycles-pp.path_put
0.36 ± 9% -0.2 0.20 ± 10% perf-profile.children.cycles-pp.dput
0.34 ± 12% -0.2 0.19 ± 10% perf-profile.children.cycles-pp.__entry_text_start
0.31 ± 11% -0.1 0.17 ± 7% perf-profile.children.cycles-pp.path_init
0.33 ± 7% -0.1 0.18 ± 10% perf-profile.children.cycles-pp.__check_heap_object
0.31 ± 7% -0.1 0.17 ± 7% perf-profile.children.cycles-pp.__d_lookup_rcu
0.28 ± 6% -0.1 0.16 ± 18% perf-profile.children.cycles-pp.xfs_inode_item_format
0.27 ± 10% -0.1 0.16 ± 11% perf-profile.children.cycles-pp.__might_sleep
0.24 ± 13% -0.1 0.13 ± 8% perf-profile.children.cycles-pp.__legitimize_mnt
0.23 ± 11% -0.1 0.11 ± 12% perf-profile.children.cycles-pp._cond_resched
0.27 ± 14% -0.1 0.16 ± 14% perf-profile.children.cycles-pp.cp_new_stat
0.17 ± 20% -0.1 0.06 ± 48% perf-profile.children.cycles-pp.up_read
0.23 ± 17% -0.1 0.13 ± 11% perf-profile.children.cycles-pp.memset_erms
0.20 ± 9% -0.1 0.10 ± 15% perf-profile.children.cycles-pp.__mod_memcg_state
0.27 ± 15% -0.1 0.17 ± 11% perf-profile.children.cycles-pp.xlog_ticket_alloc
0.20 ± 13% -0.1 0.11 ± 14% perf-profile.children.cycles-pp.__list_del_entry_valid
0.12 ± 12% -0.1 0.03 ±101% perf-profile.children.cycles-pp.__list_add_valid
0.19 ± 14% -0.1 0.11 ± 14% perf-profile.children.cycles-pp.step_into
0.17 ± 9% -0.1 0.09 ± 18% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.17 ± 14% -0.1 0.09 ± 18% perf-profile.children.cycles-pp.__might_fault
0.10 ± 10% -0.1 0.03 ±100% perf-profile.children.cycles-pp.security_inode_permission
0.18 ± 10% -0.1 0.10 ± 16% perf-profile.children.cycles-pp.lockref_get_not_dead
0.17 ± 8% -0.1 0.10 ± 6% perf-profile.children.cycles-pp.rcu_read_unlock_strict
0.15 ± 12% -0.1 0.09 ± 12% perf-profile.children.cycles-pp._copy_to_user
0.13 ± 6% -0.1 0.07 ± 15% perf-profile.children.cycles-pp.lockref_put_return
0.11 ± 13% -0.1 0.05 ± 47% perf-profile.children.cycles-pp.rcu_all_qs
0.13 ± 8% -0.1 0.07 ± 19% perf-profile.children.cycles-pp.down_write
0.09 ± 18% -0.1 0.04 ± 72% perf-profile.children.cycles-pp.mnt_want_write
0.11 ± 9% -0.0 0.06 ± 15% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.09 ± 14% -0.0 0.04 ± 72% perf-profile.children.cycles-pp.up_write
0.12 ± 11% -0.0 0.07 ± 11% perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
0.09 ± 18% -0.0 0.05 ± 45% perf-profile.children.cycles-pp.__fget_light
0.10 ± 14% -0.0 0.06 ± 21% perf-profile.children.cycles-pp.__put_cred
0.08 ± 9% -0.0 0.04 ± 72% perf-profile.children.cycles-pp.terminate_walk
0.07 ± 16% -0.0 0.03 ± 70% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.10 ± 12% -0.0 0.06 ± 11% perf-profile.children.cycles-pp.__virt_addr_valid
0.05 ± 45% +0.3 0.40 ± 12% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
0.16 ± 11% +1.4 1.52 ± 17% perf-profile.children.cycles-pp.override_creds
1.48 ± 38% +2.4 3.91 ± 57% perf-profile.children.cycles-pp.menu_select
0.00 +17.1 17.13 ± 12% perf-profile.children.cycles-pp.get_ucounts
0.00 +17.6 17.57 ± 12% perf-profile.children.cycles-pp.put_ucounts
0.76 ± 16% +30.2 30.99 ± 12% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
0.06 ± 13% +34.0 34.08 ± 12% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
13.33 ± 8% -9.2 4.18 ± 10% perf-profile.self.cycles-pp.prepare_creds
5.68 ± 6% -5.0 0.70 ± 10% perf-profile.self.cycles-pp.refcount_dec_not_one
5.70 ± 11% -4.1 1.55 ± 13% perf-profile.self.cycles-pp.key_put
4.91 ± 6% -2.1 2.77 ± 11% perf-profile.self.cycles-pp.put_cred_rcu
3.27 ± 16% -2.0 1.31 ± 10% perf-profile.self.cycles-pp.apparmor_cred_prepare
2.15 ± 9% -1.1 1.08 ± 11% perf-profile.self.cycles-pp.apparmor_cred_free
0.99 ± 17% -0.6 0.42 ± 12% perf-profile.self.cycles-pp.xfs_log_ticket_ungrant
0.88 ± 10% -0.5 0.39 ± 8% perf-profile.self.cycles-pp.common_perm
0.99 ± 10% -0.5 0.54 ± 9% perf-profile.self.cycles-pp.link_path_walk
1.07 ± 9% -0.4 0.63 ± 11% perf-profile.self.cycles-pp.kmem_cache_alloc
0.86 ± 13% -0.4 0.44 ± 7% perf-profile.self.cycles-pp._raw_spin_lock
0.86 ± 8% -0.4 0.48 ± 7% perf-profile.self.cycles-pp.kmem_cache_free
0.55 ± 22% -0.3 0.21 ± 10% perf-profile.self.cycles-pp.xlog_grant_add_space
0.76 ± 9% -0.3 0.43 ± 10% perf-profile.self.cycles-pp.__kmalloc
0.50 ± 16% -0.3 0.17 ± 22% perf-profile.self.cycles-pp.xfs_log_commit_cil
0.65 ± 15% -0.3 0.35 ± 10% perf-profile.self.cycles-pp.kfree
0.69 ± 12% -0.3 0.40 ± 8% perf-profile.self.cycles-pp.strncpy_from_user
0.58 ± 11% -0.3 0.31 ± 7% perf-profile.self.cycles-pp.down_read
0.56 ± 12% -0.2 0.31 ± 8% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.47 ± 9% -0.2 0.24 ± 7% perf-profile.self.cycles-pp.xlog_cil_insert_items
0.43 ± 11% -0.2 0.22 ± 12% perf-profile.self.cycles-pp.obj_cgroup_charge
0.43 ± 9% -0.2 0.23 ± 7% perf-profile.self.cycles-pp.xlog_space_left
0.33 ± 23% -0.2 0.14 ± 13% perf-profile.self.cycles-pp.revert_creds
0.38 ± 15% -0.2 0.19 ± 9% perf-profile.self.cycles-pp.get_obj_cgroup_from_current
0.40 ± 12% -0.2 0.23 ± 9% perf-profile.self.cycles-pp.___might_sleep
0.26 ± 11% -0.2 0.09 ± 11% perf-profile.self.cycles-pp.apparmor_capable
0.41 ± 13% -0.2 0.25 ± 15% perf-profile.self.cycles-pp.refill_obj_stock
0.34 ± 12% -0.2 0.19 ± 10% perf-profile.self.cycles-pp.__entry_text_start
0.40 ± 6% -0.1 0.25 ± 14% perf-profile.self.cycles-pp.do_faccessat
0.22 ± 31% -0.1 0.07 ± 60% perf-profile.self.cycles-pp.xfs_trans_ijoin
0.32 ± 7% -0.1 0.17 ± 10% perf-profile.self.cycles-pp.__check_heap_object
0.31 ± 6% -0.1 0.17 ± 9% perf-profile.self.cycles-pp.__d_lookup_rcu
0.28 ± 12% -0.1 0.15 ± 9% perf-profile.self.cycles-pp.path_init
0.28 ± 11% -0.1 0.16 ± 13% perf-profile.self.cycles-pp.generic_permission
0.24 ± 13% -0.1 0.13 ± 6% perf-profile.self.cycles-pp.__check_object_size
0.17 ± 20% -0.1 0.06 ± 49% perf-profile.self.cycles-pp.up_read
0.23 ± 13% -0.1 0.13 ± 8% perf-profile.self.cycles-pp.__legitimize_mnt
0.25 ± 10% -0.1 0.15 ± 12% perf-profile.self.cycles-pp.__might_sleep
0.22 ± 18% -0.1 0.12 ± 10% perf-profile.self.cycles-pp.memset_erms
0.22 ± 8% -0.1 0.12 ± 20% perf-profile.self.cycles-pp.xfs_inode_item_format
0.20 ± 9% -0.1 0.10 ± 15% perf-profile.self.cycles-pp.__mod_memcg_state
0.22 ± 9% -0.1 0.12 ± 14% perf-profile.self.cycles-pp.inode_permission
0.20 ± 8% -0.1 0.11 ± 19% perf-profile.self.cycles-pp.walk_component
0.21 ± 10% -0.1 0.11 ± 9% perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.20 ± 14% -0.1 0.10 ± 14% perf-profile.self.cycles-pp.__list_del_entry_valid
0.18 ± 12% -0.1 0.10 ± 14% perf-profile.self.cycles-pp.xfs_trans_log_inode
0.11 ± 11% -0.1 0.03 ±101% perf-profile.self.cycles-pp.__list_add_valid
0.18 ± 16% -0.1 0.10 ± 15% perf-profile.self.cycles-pp.step_into
0.20 ± 7% -0.1 0.13 ± 13% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.17 ± 10% -0.1 0.10 ± 18% perf-profile.self.cycles-pp.lockref_get_not_dead
0.10 ± 7% -0.1 0.03 ±100% perf-profile.self.cycles-pp.security_inode_permission
0.15 ± 10% -0.1 0.08 ± 13% perf-profile.self.cycles-pp.lookup_fast
0.14 ± 11% -0.1 0.07 ± 10% perf-profile.self.cycles-pp.getname_flags
0.14 ± 17% -0.1 0.08 ± 12% perf-profile.self.cycles-pp.filename_lookup
0.12 ± 7% -0.1 0.07 ± 16% perf-profile.self.cycles-pp.lockref_put_return
0.08 ± 16% -0.1 0.03 ±102% perf-profile.self.cycles-pp.up_write
0.08 ± 23% -0.1 0.03 ± 99% perf-profile.self.cycles-pp.unlazy_walk
0.11 ± 9% -0.0 0.06 ± 15% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.11 ± 13% -0.0 0.06 ± 15% perf-profile.self.cycles-pp._cond_resched
0.12 ± 7% -0.0 0.07 ± 15% perf-profile.self.cycles-pp.rcu_read_unlock_strict
0.11 ± 9% -0.0 0.07 ± 13% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
0.10 ± 6% -0.0 0.06 ± 6% perf-profile.self.cycles-pp.path_lookupat
0.09 ± 17% -0.0 0.05 ± 45% perf-profile.self.cycles-pp.__fget_light
0.12 ± 12% -0.0 0.07 ± 16% perf-profile.self.cycles-pp.notify_change
0.07 ± 11% -0.0 0.03 ± 99% perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.09 ± 14% -0.0 0.06 ± 8% perf-profile.self.cycles-pp.__virt_addr_valid
0.09 ± 13% -0.0 0.06 ± 16% perf-profile.self.cycles-pp.__put_cred
0.00 +0.2 0.18 ± 15% perf-profile.self.cycles-pp.get_ucounts
0.00 +0.2 0.18 ± 11% perf-profile.self.cycles-pp.put_ucounts
0.05 ± 45% +0.2 0.24 ± 17% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.67 ± 24% +1.3 1.94 ± 39% perf-profile.self.cycles-pp.cpuidle_enter_state
0.15 ± 10% +1.4 1.51 ± 17% perf-profile.self.cycles-pp.override_creds
0.88 ± 42% +2.4 3.25 ± 59% perf-profile.self.cycles-pp.menu_select
0.06 ± 15% +3.2 3.25 ± 9% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.75 ± 16% +30.2 30.98 ± 12% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
***************************************************************************************************
lkp-csl-2sp7: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
filesystem/gcc-9/performance/1HDD/f2fs/x86_64-rhel-8.3/10%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp7/access/stress-ng/60s/0x5003006
commit:
a88f997967 ("Increase size of ucounts to atomic_long_t")
e1e57d56fe ("Add a reference to ucounts for each cred")
a88f9979677c6f55 e1e57d56fef0dd06daf3743f094
---------------- ---------------------------
%stddev %change %stddev
\ | \
2266573 -44.5% 1258748 ± 4% stress-ng.access.ops
37776 -44.5% 20979 ± 4% stress-ng.access.ops_per_sec
10.37 ± 2% -45.1% 5.70 ± 5% stress-ng.time.user_time
0.30 -0.1 0.21 ± 3% mpstat.cpu.all.usr%
304.83 -1.6% 299.99 pmeter.Average_Active_Power
116.83 ± 7% +31.1% 153.17 ± 4% interrupts.CPU37.NMI:Non-maskable_interrupts
116.83 ± 7% +31.1% 153.17 ± 4% interrupts.CPU37.PMI:Performance_monitoring_interrupts
86.50 ± 38% +1387.1% 1286 ±123% interrupts.CPU60.NMI:Non-maskable_interrupts
86.50 ± 38% +1387.1% 1286 ±123% interrupts.CPU60.PMI:Performance_monitoring_interrupts
93.17 ± 38% +62.3% 151.17 ± 2% interrupts.CPU62.NMI:Non-maskable_interrupts
93.17 ± 38% +62.3% 151.17 ± 2% interrupts.CPU62.PMI:Performance_monitoring_interrupts
95.00 ± 32% +1047.9% 1090 ±189% interrupts.CPU77.NMI:Non-maskable_interrupts
95.00 ± 32% +1047.9% 1090 ±189% interrupts.CPU77.PMI:Performance_monitoring_interrupts
113.67 ± 9% +33.1% 151.33 ± 4% interrupts.CPU85.NMI:Non-maskable_interrupts
113.67 ± 9% +33.1% 151.33 ± 4% interrupts.CPU85.PMI:Performance_monitoring_interrupts
104.17 ± 31% +897.1% 1038 ±188% interrupts.CPU88.NMI:Non-maskable_interrupts
104.17 ± 31% +897.1% 1038 ±188% interrupts.CPU88.PMI:Performance_monitoring_interrupts
107.17 ± 33% +45.9% 156.33 ± 4% interrupts.CPU90.NMI:Non-maskable_interrupts
107.17 ± 33% +45.9% 156.33 ± 4% interrupts.CPU90.PMI:Performance_monitoring_interrupts
103.17 ± 35% +1114.1% 1252 ±195% interrupts.CPU91.NMI:Non-maskable_interrupts
103.17 ± 35% +1114.1% 1252 ±195% interrupts.CPU91.PMI:Performance_monitoring_interrupts
103.33 ± 33% +650.2% 775.17 ±133% interrupts.CPU92.NMI:Non-maskable_interrupts
103.33 ± 33% +650.2% 775.17 ±133% interrupts.CPU92.PMI:Performance_monitoring_interrupts
109.83 ± 23% +567.4% 733.00 ±176% interrupts.CPU93.NMI:Non-maskable_interrupts
109.83 ± 23% +567.4% 733.00 ±176% interrupts.CPU93.PMI:Performance_monitoring_interrupts
112.83 ± 21% +656.3% 853.33 ±182% interrupts.CPU94.NMI:Non-maskable_interrupts
112.83 ± 21% +656.3% 853.33 ±182% interrupts.CPU94.PMI:Performance_monitoring_interrupts
8.22 ± 5% +57.2% 12.91 perf-stat.i.MPKI
2.751e+09 -31.3% 1.89e+09 ± 3% perf-stat.i.branch-instructions
0.85 +0.1 0.95 perf-stat.i.branch-miss-rate%
22385388 -19.2% 18095507 ± 2% perf-stat.i.branch-misses
1.95 ± 2% +56.0% 3.04 ± 3% perf-stat.i.cpi
2.79e+10 +3.2% 2.88e+10 perf-stat.i.cpu-cycles
3.898e+09 ± 2% -34.1% 2.569e+09 ± 4% perf-stat.i.dTLB-loads
0.00 ± 12% +0.0 0.00 ± 18% perf-stat.i.dTLB-store-miss-rate%
2.176e+09 -38.4% 1.34e+09 ± 4% perf-stat.i.dTLB-stores
83.86 -7.8 76.11 perf-stat.i.iTLB-load-miss-rate%
12992520 ± 4% -43.6% 7326831 ± 3% perf-stat.i.iTLB-load-misses
1.427e+10 -33.3% 9.513e+09 ± 3% perf-stat.i.instructions
1195 ± 3% +14.8% 1372 perf-stat.i.instructions-per-iTLB-miss
0.53 -34.2% 0.35 ± 3% perf-stat.i.ipc
0.29 +3.2% 0.30 perf-stat.i.metric.GHz
93.35 -33.7% 61.88 ± 4% perf-stat.i.metric.M/sec
89.51 ± 2% +6.9 96.40 perf-stat.i.node-load-miss-rate%
2600729 ± 3% +135.6% 6126728 ± 7% perf-stat.i.node-load-misses
292982 ± 19% -38.5% 180109 ± 16% perf-stat.i.node-loads
13416978 ± 7% -27.9% 9679639 ± 9% perf-stat.i.node-store-misses
8.29 ± 5% +55.7% 12.90 perf-stat.overall.MPKI
0.81 +0.1 0.96 perf-stat.overall.branch-miss-rate%
1.96 +54.9% 3.03 ± 3% perf-stat.overall.cpi
0.00 ± 20% +0.0 0.00 ± 18% perf-stat.overall.dTLB-load-miss-rate%
0.00 ± 10% +0.0 0.00 ± 19% perf-stat.overall.dTLB-store-miss-rate%
84.89 -8.2 76.69 perf-stat.overall.iTLB-load-miss-rate%
1099 ± 3% +18.1% 1298 perf-stat.overall.instructions-per-iTLB-miss
0.51 -35.4% 0.33 ± 3% perf-stat.overall.ipc
89.87 ± 2% +7.3 97.15 perf-stat.overall.node-load-miss-rate%
2.707e+09 -31.3% 1.86e+09 ± 3% perf-stat.ps.branch-instructions
22015761 -19.1% 17801305 ± 2% perf-stat.ps.branch-misses
2.745e+10 +3.2% 2.833e+10 perf-stat.ps.cpu-cycles
3.835e+09 ± 2% -34.1% 2.528e+09 ± 4% perf-stat.ps.dTLB-loads
2.141e+09 -38.4% 1.318e+09 ± 4% perf-stat.ps.dTLB-stores
12784377 ± 4% -43.6% 7209165 ± 3% perf-stat.ps.iTLB-load-misses
1.404e+10 -33.3% 9.36e+09 ± 3% perf-stat.ps.instructions
2559028 ± 3% +135.6% 6028475 ± 7% perf-stat.ps.node-load-misses
288289 ± 19% -38.5% 177214 ± 16% perf-stat.ps.node-loads
13202172 ± 7% -27.9% 9524529 ± 9% perf-stat.ps.node-store-misses
8.819e+11 -33.1% 5.9e+11 ± 3% perf-stat.total.instructions
7.41 ± 9% -6.7 0.75 ± 12% perf-profile.calltrace.cycles-pp.free_uid.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
7.36 ± 9% -6.6 0.73 ± 11% perf-profile.calltrace.cycles-pp.refcount_dec_and_lock_irqsave.free_uid.put_cred_rcu.do_faccessat.do_syscall_64
7.33 ± 9% -6.6 0.71 ± 11% perf-profile.calltrace.cycles-pp.refcount_dec_not_one.refcount_dec_and_lock_irqsave.free_uid.put_cred_rcu.do_faccessat
6.89 ± 12% -5.2 1.72 ± 12% perf-profile.calltrace.cycles-pp.key_put.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.28 ± 14% -3.0 2.29 ± 5% perf-profile.calltrace.cycles-pp.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.52 ± 17% -2.2 1.34 ± 5% perf-profile.calltrace.cycles-pp.apparmor_cred_prepare.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64
3.50 ± 9% -1.8 1.68 ± 5% perf-profile.calltrace.cycles-pp.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.20 ± 7% -1.5 1.70 ± 6% perf-profile.calltrace.cycles-pp.filename_lookup.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.73 ± 8% -1.3 1.38 ± 7% perf-profile.calltrace.cycles-pp.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.40 ± 11% -1.3 1.07 ± 6% perf-profile.calltrace.cycles-pp.apparmor_cred_free.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64
2.79 ± 7% -1.3 1.51 ± 6% perf-profile.calltrace.cycles-pp.path_lookupat.filename_lookup.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.44 ± 10% -1.2 1.19 ± 11% perf-profile.calltrace.cycles-pp.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.34 ± 10% -1.2 1.13 ± 10% perf-profile.calltrace.cycles-pp.chmod_common.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.39 ± 9% -1.2 1.22 ± 7% perf-profile.calltrace.cycles-pp.vfs_statx.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.76 ± 7% -0.8 0.97 ± 7% perf-profile.calltrace.cycles-pp.user_path_at_empty.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.64 ± 8% -0.8 0.86 ± 9% perf-profile.calltrace.cycles-pp.kmem_cache_alloc.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.72 ± 7% -0.8 0.95 ± 8% perf-profile.calltrace.cycles-pp.getname_flags.user_path_at_empty.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.53 ± 10% -0.8 0.76 ± 12% perf-profile.calltrace.cycles-pp.notify_change.chmod_common.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.64 ± 10% -0.8 0.88 ± 6% perf-profile.calltrace.cycles-pp.__kmalloc.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64
1.51 ± 6% -0.7 0.81 ± 5% perf-profile.calltrace.cycles-pp.link_path_walk.path_lookupat.filename_lookup.do_faccessat.do_syscall_64
1.35 ± 11% -0.7 0.67 ± 13% perf-profile.calltrace.cycles-pp.f2fs_setattr.notify_change.chmod_common.__x64_sys_fchmod.do_syscall_64
1.00 ± 7% -0.6 0.37 ± 70% perf-profile.calltrace.cycles-pp.kmem_cache_free.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.33 ± 7% -0.6 0.73 ± 9% perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.user_path_at_empty.do_faccessat.do_syscall_64
1.05 ± 7% -0.6 0.49 ± 45% perf-profile.calltrace.cycles-pp.kfree.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64
0.97 ± 9% -0.5 0.45 ± 45% perf-profile.calltrace.cycles-pp.filename_lookup.vfs_statx.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.75 ± 29% +1.3 3.05 ± 8% perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
0.00 +1.6 1.57 ± 11% perf-profile.calltrace.cycles-pp.override_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +17.0 17.03 ± 7% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.get_ucounts.prepare_creds.do_faccessat
0.00 +17.5 17.51 ± 9% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.put_ucounts.put_cred_rcu.do_faccessat
0.00 +18.7 18.69 ± 7% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.get_ucounts.prepare_creds.do_faccessat.do_syscall_64
0.00 +19.0 19.04 ± 7% perf-profile.calltrace.cycles-pp.get_ucounts.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +19.2 19.19 ± 8% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.put_ucounts.put_cred_rcu.do_faccessat.do_syscall_64
0.00 +19.5 19.54 ± 8% perf-profile.calltrace.cycles-pp.put_ucounts.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
7.41 ± 9% -6.7 0.75 ± 11% perf-profile.children.cycles-pp.free_uid
7.37 ± 9% -6.6 0.73 ± 12% perf-profile.children.cycles-pp.refcount_dec_and_lock_irqsave
7.34 ± 9% -6.6 0.72 ± 11% perf-profile.children.cycles-pp.refcount_dec_not_one
6.92 ± 12% -5.2 1.73 ± 12% perf-profile.children.cycles-pp.key_put
5.29 ± 14% -3.0 2.29 ± 5% perf-profile.children.cycles-pp.security_prepare_creds
3.53 ± 17% -2.2 1.34 ± 5% perf-profile.children.cycles-pp.apparmor_cred_prepare
4.19 ± 7% -1.9 2.24 ± 6% perf-profile.children.cycles-pp.filename_lookup
3.50 ± 9% -1.8 1.68 ± 5% perf-profile.children.cycles-pp.security_cred_free
3.69 ± 7% -1.7 1.99 ± 6% perf-profile.children.cycles-pp.path_lookupat
2.73 ± 8% -1.3 1.38 ± 7% perf-profile.children.cycles-pp.__do_sys_newfstatat
2.41 ± 11% -1.3 1.08 ± 5% perf-profile.children.cycles-pp.apparmor_cred_free
2.44 ± 10% -1.2 1.19 ± 11% perf-profile.children.cycles-pp.__x64_sys_fchmod
2.35 ± 10% -1.2 1.14 ± 10% perf-profile.children.cycles-pp.chmod_common
2.40 ± 9% -1.2 1.23 ± 7% perf-profile.children.cycles-pp.vfs_statx
2.28 ± 8% -1.0 1.26 ± 7% perf-profile.children.cycles-pp.user_path_at_empty
2.24 ± 8% -1.0 1.24 ± 8% perf-profile.children.cycles-pp.getname_flags
2.03 ± 7% -0.9 1.09 ± 6% perf-profile.children.cycles-pp.link_path_walk
2.04 ± 8% -0.9 1.10 ± 8% perf-profile.children.cycles-pp.kmem_cache_alloc
1.69 ± 10% -0.8 0.92 ± 6% perf-profile.children.cycles-pp.__kmalloc
1.54 ± 10% -0.8 0.76 ± 11% perf-profile.children.cycles-pp.notify_change
1.71 ± 8% -0.8 0.94 ± 8% perf-profile.children.cycles-pp.strncpy_from_user
1.35 ± 11% -0.7 0.67 ± 13% perf-profile.children.cycles-pp.f2fs_setattr
1.31 ± 8% -0.6 0.68 ± 7% perf-profile.children.cycles-pp.kmem_cache_free
1.09 ± 11% -0.6 0.46 ± 8% perf-profile.children.cycles-pp.common_perm_cond
1.02 ± 11% -0.6 0.42 ± 9% perf-profile.children.cycles-pp.common_perm
0.87 ± 6% -0.5 0.41 ± 10% perf-profile.children.cycles-pp.inode_permission
1.06 ± 7% -0.5 0.59 ± 8% perf-profile.children.cycles-pp.kfree
0.94 ± 10% -0.4 0.52 ± 7% perf-profile.children.cycles-pp.walk_component
0.65 ± 8% -0.4 0.29 ± 7% perf-profile.children.cycles-pp.generic_permission
0.63 ± 9% -0.4 0.27 ± 8% perf-profile.children.cycles-pp.vfs_getattr
0.62 ± 9% -0.4 0.27 ± 8% perf-profile.children.cycles-pp.security_inode_getattr
0.75 ± 6% -0.4 0.40 ± 10% perf-profile.children.cycles-pp.__check_object_size
0.55 ± 12% -0.3 0.23 ± 11% perf-profile.children.cycles-pp.security_path_chmod
0.68 ± 10% -0.3 0.36 ± 6% perf-profile.children.cycles-pp.complete_walk
0.65 ± 10% -0.3 0.34 ± 6% perf-profile.children.cycles-pp.unlazy_walk
0.62 ± 9% -0.3 0.33 ± 8% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.46 ± 11% -0.2 0.21 ± 15% perf-profile.children.cycles-pp.f2fs_mark_inode_dirty_sync
0.49 ± 9% -0.2 0.25 ± 8% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.47 ± 15% -0.2 0.24 ± 9% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.50 ± 10% -0.2 0.27 ± 9% perf-profile.children.cycles-pp.__legitimize_path
0.52 ± 11% -0.2 0.29 ± 8% perf-profile.children.cycles-pp.lookup_fast
0.49 ± 9% -0.2 0.27 ± 7% perf-profile.children.cycles-pp.obj_cgroup_charge
0.40 ± 11% -0.2 0.18 ± 15% perf-profile.children.cycles-pp.f2fs_inode_dirtied
0.43 ± 9% -0.2 0.22 ± 10% perf-profile.children.cycles-pp.path_put
0.47 ± 10% -0.2 0.26 ± 11% perf-profile.children.cycles-pp.refill_obj_stock
0.42 ± 9% -0.2 0.21 ± 8% perf-profile.children.cycles-pp.___might_sleep
0.32 ± 13% -0.2 0.11 ± 11% perf-profile.children.cycles-pp.capable_wrt_inode_uidgid
0.31 ± 13% -0.2 0.11 ± 13% perf-profile.children.cycles-pp.ns_capable_common
0.31 ± 13% -0.2 0.11 ± 13% perf-profile.children.cycles-pp.security_capable
0.42 ± 9% -0.2 0.22 ± 11% perf-profile.children.cycles-pp.dput
0.42 ± 11% -0.2 0.21 ± 8% perf-profile.children.cycles-pp._raw_spin_lock
0.29 ± 15% -0.2 0.09 ± 13% perf-profile.children.cycles-pp.apparmor_capable
0.38 ± 7% -0.2 0.20 ± 8% perf-profile.children.cycles-pp.__entry_text_start
0.31 ± 28% -0.2 0.14 ± 18% perf-profile.children.cycles-pp.revert_creds
0.32 ± 10% -0.2 0.14 ± 9% perf-profile.children.cycles-pp.cp_new_stat
0.36 ± 7% -0.2 0.19 ± 8% perf-profile.children.cycles-pp.__check_heap_object
0.35 ± 11% -0.2 0.20 ± 7% perf-profile.children.cycles-pp.__d_lookup_rcu
0.34 ± 9% -0.1 0.20 ± 10% perf-profile.children.cycles-pp.path_init
0.26 ± 16% -0.1 0.12 ± 24% perf-profile.children.cycles-pp.f2fs_balance_fs
0.26 ± 12% -0.1 0.13 ± 7% perf-profile.children.cycles-pp.__legitimize_mnt
0.23 ± 9% -0.1 0.11 ± 10% perf-profile.children.cycles-pp.__mod_memcg_state
0.27 ± 11% -0.1 0.15 ± 8% perf-profile.children.cycles-pp.__might_sleep
0.20 ± 13% -0.1 0.09 ± 7% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.21 ± 11% -0.1 0.11 ± 16% perf-profile.children.cycles-pp.step_into
0.19 ± 11% -0.1 0.10 ± 14% perf-profile.children.cycles-pp._cond_resched
0.18 ± 6% -0.1 0.09 ± 14% perf-profile.children.cycles-pp._copy_to_user
0.20 ± 12% -0.1 0.11 ± 13% perf-profile.children.cycles-pp.__might_fault
0.19 ± 8% -0.1 0.11 ± 10% perf-profile.children.cycles-pp.rcu_read_unlock_strict
0.16 ± 9% -0.1 0.08 ± 13% perf-profile.children.cycles-pp.lockref_put_return
0.19 ± 13% -0.1 0.11 ± 9% perf-profile.children.cycles-pp.lockref_get_not_dead
0.16 ± 18% -0.1 0.08 ± 9% perf-profile.children.cycles-pp.memset_erms
0.14 ± 7% -0.1 0.07 ± 10% perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
0.09 ± 10% -0.1 0.03 ±100% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.09 ± 14% -0.1 0.03 ±100% perf-profile.children.cycles-pp.rcu_all_qs
0.09 ± 10% -0.1 0.03 ±101% perf-profile.children.cycles-pp.terminate_walk
0.12 ± 7% -0.1 0.06 ± 17% perf-profile.children.cycles-pp.__put_cred
0.09 ± 6% -0.1 0.04 ± 71% perf-profile.children.cycles-pp.mnt_want_write
0.10 ± 10% -0.0 0.06 ± 8% perf-profile.children.cycles-pp.security_inode_permission
0.12 ± 13% -0.0 0.07 ± 9% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.09 ± 12% -0.0 0.05 ± 46% perf-profile.children.cycles-pp.__fget_light
0.06 ± 9% +0.3 0.40 ± 9% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
1.76 ± 29% +1.3 3.08 ± 8% perf-profile.children.cycles-pp.menu_select
0.18 ± 8% +1.4 1.57 ± 10% perf-profile.children.cycles-pp.override_creds
0.00 +19.0 19.04 ± 7% perf-profile.children.cycles-pp.get_ucounts
0.00 +19.5 19.54 ± 8% perf-profile.children.cycles-pp.put_ucounts
0.07 ± 11% +34.5 34.55 ± 8% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
0.06 ± 14% +37.9 37.96 ± 8% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
16.68 ± 10% -12.2 4.45 ± 11% perf-profile.self.cycles-pp.prepare_creds
7.30 ± 9% -6.6 0.71 ± 11% perf-profile.self.cycles-pp.refcount_dec_not_one
6.87 ± 12% -5.2 1.71 ± 12% perf-profile.self.cycles-pp.key_put
6.25 ± 8% -3.3 2.90 ± 8% perf-profile.self.cycles-pp.put_cred_rcu
3.50 ± 17% -2.2 1.33 ± 5% perf-profile.self.cycles-pp.apparmor_cred_prepare
2.39 ± 11% -1.3 1.08 ± 5% perf-profile.self.cycles-pp.apparmor_cred_free
1.01 ± 11% -0.6 0.41 ± 8% perf-profile.self.cycles-pp.common_perm
1.08 ± 8% -0.5 0.57 ± 6% perf-profile.self.cycles-pp.link_path_walk
1.03 ± 8% -0.5 0.58 ± 7% perf-profile.self.cycles-pp.kmem_cache_alloc
0.92 ± 8% -0.5 0.46 ± 7% perf-profile.self.cycles-pp.kmem_cache_free
0.84 ± 8% -0.4 0.46 ± 10% perf-profile.self.cycles-pp.__kmalloc
0.78 ± 9% -0.3 0.45 ± 6% perf-profile.self.cycles-pp.strncpy_from_user
0.69 ± 7% -0.3 0.39 ± 8% perf-profile.self.cycles-pp.kfree
0.62 ± 9% -0.3 0.33 ± 8% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.58 ± 11% -0.3 0.30 ± 12% perf-profile.self.cycles-pp.f2fs_setattr
0.47 ± 10% -0.2 0.26 ± 7% perf-profile.self.cycles-pp.obj_cgroup_charge
0.41 ± 9% -0.2 0.21 ± 7% perf-profile.self.cycles-pp.___might_sleep
0.46 ± 11% -0.2 0.25 ± 10% perf-profile.self.cycles-pp.refill_obj_stock
0.29 ± 15% -0.2 0.09 ± 13% perf-profile.self.cycles-pp.apparmor_capable
0.45 ± 7% -0.2 0.26 ± 5% perf-profile.self.cycles-pp.do_faccessat
0.38 ± 7% -0.2 0.20 ± 8% perf-profile.self.cycles-pp.__entry_text_start
0.38 ± 14% -0.2 0.21 ± 10% perf-profile.self.cycles-pp.get_obj_cgroup_from_current
0.31 ± 29% -0.2 0.14 ± 18% perf-profile.self.cycles-pp.revert_creds
0.35 ± 7% -0.2 0.18 ± 8% perf-profile.self.cycles-pp.__check_heap_object
0.35 ± 12% -0.2 0.20 ± 8% perf-profile.self.cycles-pp.__d_lookup_rcu
0.35 ± 12% -0.1 0.20 ± 9% perf-profile.self.cycles-pp._raw_spin_lock
0.31 ± 8% -0.1 0.17 ± 10% perf-profile.self.cycles-pp.path_init
0.29 ± 6% -0.1 0.16 ± 8% perf-profile.self.cycles-pp.generic_permission
0.27 ± 6% -0.1 0.14 ± 16% perf-profile.self.cycles-pp.__check_object_size
0.25 ± 16% -0.1 0.12 ± 25% perf-profile.self.cycles-pp.f2fs_balance_fs
0.25 ± 10% -0.1 0.13 ± 8% perf-profile.self.cycles-pp.__legitimize_mnt
0.23 ± 9% -0.1 0.11 ± 10% perf-profile.self.cycles-pp.__mod_memcg_state
0.25 ± 10% -0.1 0.13 ± 9% perf-profile.self.cycles-pp.__might_sleep
0.24 ± 5% -0.1 0.13 ± 16% perf-profile.self.cycles-pp.inode_permission
0.22 ± 12% -0.1 0.12 ± 4% perf-profile.self.cycles-pp.walk_component
0.20 ± 12% -0.1 0.10 ± 18% perf-profile.self.cycles-pp.step_into
0.22 ± 4% -0.1 0.12 ± 9% perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.23 ± 13% -0.1 0.13 ± 8% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.16 ± 11% -0.1 0.08 ± 12% perf-profile.self.cycles-pp.getname_flags
0.19 ± 13% -0.1 0.11 ± 9% perf-profile.self.cycles-pp.lockref_get_not_dead
0.16 ± 11% -0.1 0.08 ± 12% perf-profile.self.cycles-pp.lockref_put_return
0.15 ± 19% -0.1 0.08 ± 10% perf-profile.self.cycles-pp.memset_erms
0.13 ± 8% -0.1 0.06 ± 11% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
0.16 ± 12% -0.1 0.09 ± 6% perf-profile.self.cycles-pp.filename_lookup
0.12 ± 11% -0.1 0.06 ± 8% perf-profile.self.cycles-pp.path_lookupat
0.15 ± 11% -0.1 0.09 ± 18% perf-profile.self.cycles-pp.lookup_fast
0.15 ± 10% -0.1 0.09 ± 8% perf-profile.self.cycles-pp.rcu_read_unlock_strict
0.11 ± 9% -0.1 0.06 ± 11% perf-profile.self.cycles-pp.__put_cred
0.10 ± 10% -0.0 0.06 ± 8% perf-profile.self.cycles-pp.security_inode_permission
0.12 ± 13% -0.0 0.07 ± 11% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.09 ± 11% -0.0 0.04 ± 45% perf-profile.self.cycles-pp.notify_change
0.10 ± 17% -0.0 0.06 ± 14% perf-profile.self.cycles-pp.__virt_addr_valid
0.09 ± 12% -0.0 0.05 ± 46% perf-profile.self.cycles-pp.__fget_light
0.00 +0.2 0.16 ± 11% perf-profile.self.cycles-pp.put_ucounts
0.00 +0.2 0.17 ± 10% perf-profile.self.cycles-pp.get_ucounts
0.06 ± 11% +0.2 0.23 ± 8% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.84 ± 23% +0.8 1.69 ± 7% perf-profile.self.cycles-pp.cpuidle_enter_state
1.20 ± 31% +1.2 2.44 ± 8% perf-profile.self.cycles-pp.menu_select
0.17 ± 9% +1.4 1.56 ± 10% perf-profile.self.cycles-pp.override_creds
0.06 ± 14% +3.3 3.41 ± 7% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.07 ± 11% +34.5 34.55 ± 8% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Oliver Sang
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