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Date: Thu, 8 Apr 2021 16:30:26 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Alexey Gladkov <gladkov.alexey@...il.com>
Cc: 0day robot <lkp@...el.com>, LKML <linux-kernel@...r.kernel.org>,
lkp@...ts.01.org, ying.huang@...el.com, feng.tang@...el.com,
zhengjun.xing@...el.com,
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: 08ed4efad6: stress-ng.sigsegv.ops_per_sec -41.9% regression
Greeting,
FYI, we noticed a -41.9% regression of stress-ng.sigsegv.ops_per_sec due to commit:
commit: 08ed4efad684e20eab719aae9753a0c260ee1a91 ("[PATCH v10 6/9] Reimplement RLIMIT_SIGPENDING on top of ucounts")
url: https://github.com/0day-ci/linux/commits/Alexey-Gladkov/Count-rlimits-in-each-user-namespace/20210408-011035
base: https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git next
in testcase: stress-ng
on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 112G memory
with following parameters:
nr_threads: 100%
disk: 1HDD
testtime: 60s
class: interrupt
test: sigsegv
cpufreq_governor: performance
ucode: 0x42e
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/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
interrupt/gcc-9/performance/1HDD/x86_64-rhel-8.3/100%/debian-10.4-x86_64-20200603.cgz/lkp-ivb-2ep1/sigsegv/stress-ng/60s/0x42e
commit:
8c0a56ae79 ("Reimplement RLIMIT_MSGQUEUE on top of ucounts")
08ed4efad6 ("Reimplement RLIMIT_SIGPENDING on top of ucounts")
8c0a56ae79357988 08ed4efad684e20eab719aae975
---------------- ---------------------------
%stddev %change %stddev
\ | \
4.708e+08 -41.9% 2.734e+08 stress-ng.sigsegv.ops
7846743 -41.9% 4556545 stress-ng.sigsegv.ops_per_sec
1558 +28.2% 1998 stress-ng.time.system_time
1280 -34.3% 840.98 stress-ng.time.user_time
168046 ± 9% -33.0% 112621 ± 46% cpuidle.C1E.usage
85539 ± 7% +10.6% 94580 ± 5% numa-meminfo.node0.Slab
9344 +1.9% 9518 proc-vmstat.nr_mapped
51.31 +27.2% 65.25 iostat.cpu.system
41.49 -34.2% 27.29 iostat.cpu.user
224.39 ± 7% -17.2% 185.78 ± 8% sched_debug.cfs_rq:/.runnable_avg.stddev
194.64 ± 7% -15.6% 164.25 ± 11% sched_debug.cfs_rq:/.util_avg.stddev
50.83 +27.5% 64.83 vmstat.cpu.sy
41.00 -34.6% 26.83 vmstat.cpu.us
0.01 ± 34% -0.0 0.00 ± 43% mpstat.cpu.all.iowait%
46.55 +12.7 59.24 mpstat.cpu.all.sys%
38.56 -13.3 25.27 mpstat.cpu.all.usr%
544.67 ± 95% -73.0% 147.00 ±102% interrupts.36:PCI-MSI.2621442-edge.eth0-TxRx-1
46207 -3.8% 44436 interrupts.CAL:Function_call_interrupts
5481 ± 34% +23.5% 6771 ± 27% interrupts.CPU12.NMI:Non-maskable_interrupts
5481 ± 34% +23.5% 6771 ± 27% interrupts.CPU12.PMI:Performance_monitoring_interrupts
5518 ± 35% +22.9% 6783 ± 27% interrupts.CPU23.NMI:Non-maskable_interrupts
5518 ± 35% +22.9% 6783 ± 27% interrupts.CPU23.PMI:Performance_monitoring_interrupts
544.67 ± 95% -73.0% 147.00 ±102% interrupts.CPU27.36:PCI-MSI.2621442-edge.eth0-TxRx-1
8945 ± 11% -19.3% 7221 ± 15% softirqs.CPU1.RCU
7440 ± 18% -24.0% 5657 ± 8% softirqs.CPU15.RCU
9143 ± 11% -28.3% 6556 ± 7% softirqs.CPU17.RCU
8842 ± 15% -31.5% 6054 ± 9% softirqs.CPU18.RCU
8278 ± 17% -24.5% 6251 ± 7% softirqs.CPU19.RCU
10071 ± 16% -33.9% 6653 ± 7% softirqs.CPU2.RCU
8077 ± 12% -22.4% 6271 ± 9% softirqs.CPU21.RCU
8065 ± 14% -22.8% 6229 ± 10% softirqs.CPU29.RCU
8389 ± 11% -17.9% 6885 ± 12% softirqs.CPU36.RCU
8782 ± 15% -26.7% 6439 ± 16% softirqs.CPU39.RCU
8523 ± 13% -19.3% 6879 ± 9% softirqs.CPU4.RCU
8864 ± 15% -24.8% 6664 ± 9% softirqs.CPU40.RCU
9099 ± 13% -26.5% 6686 ± 10% softirqs.CPU41.RCU
8909 ± 22% -25.6% 6632 ± 10% softirqs.CPU43.RCU
8204 ± 14% -24.4% 6205 ± 9% softirqs.CPU44.RCU
8419 ± 14% -19.3% 6793 ± 8% softirqs.CPU5.RCU
8593 ± 12% -20.3% 6845 ± 8% softirqs.CPU6.RCU
8297 ± 11% -26.3% 6114 ± 12% softirqs.CPU7.RCU
394778 ± 13% -20.8% 312750 ± 7% softirqs.RCU
0.76 ± 5% +189.5% 2.20 perf-stat.i.MPKI
8.024e+09 -39.9% 4.822e+09 perf-stat.i.branch-instructions
0.88 ± 2% +0.1 0.95 ± 5% perf-stat.i.branch-miss-rate%
54200970 -31.8% 36988412 ± 6% perf-stat.i.branch-misses
27.02 ± 2% +8.7 35.70 perf-stat.i.cache-miss-rate%
5961544 +190.4% 17314361 perf-stat.i.cache-misses
22107466 +119.2% 48457656 perf-stat.i.cache-references
3.39 +66.6% 5.65 perf-stat.i.cpi
23809 -67.4% 7762 perf-stat.i.cycles-between-cache-misses
1.604e+08 ± 5% -40.1% 96053796 ± 10% perf-stat.i.dTLB-load-misses
1.15e+10 -40.4% 6.852e+09 perf-stat.i.dTLB-loads
1.384e+08 -41.4% 81063645 perf-stat.i.dTLB-store-misses
1.063e+10 -41.0% 6.27e+09 perf-stat.i.dTLB-stores
3.926e+10 -40.1% 2.352e+10 perf-stat.i.instructions
1519 -30.9% 1049 ± 14% perf-stat.i.instructions-per-iTLB-miss
0.31 -36.0% 0.20 perf-stat.i.ipc
631.97 -40.3% 377.29 perf-stat.i.metric.M/sec
44.56 +1.7 46.21 perf-stat.i.node-load-miss-rate%
163292 ± 3% +4582.0% 7645410 perf-stat.i.node-load-misses
227388 ± 2% +3708.8% 8660824 perf-stat.i.node-loads
48.55 -1.3 47.24 perf-stat.i.node-store-miss-rate%
5127160 +49.6% 7668899 perf-stat.i.node-store-misses
5273474 +57.0% 8281652 perf-stat.i.node-stores
7317392 -41.9% 4247879 perf-stat.i.page-faults
0.56 +265.7% 2.06 perf-stat.overall.MPKI
0.68 +0.1 0.77 ± 7% perf-stat.overall.branch-miss-rate%
26.98 ± 2% +8.8 35.73 perf-stat.overall.cache-miss-rate%
3.47 +66.8% 5.79 perf-stat.overall.cpi
22849 -65.6% 7866 perf-stat.overall.cycles-between-cache-misses
1342 -37.7% 836.47 ± 19% perf-stat.overall.instructions-per-iTLB-miss
0.29 -40.0% 0.17 perf-stat.overall.ipc
41.78 +5.1 46.89 perf-stat.overall.node-load-miss-rate%
49.29 -1.2 48.08 perf-stat.overall.node-store-miss-rate%
7.893e+09 -39.9% 4.744e+09 perf-stat.ps.branch-instructions
53337110 -31.7% 36421215 ± 6% perf-stat.ps.branch-misses
5867618 +190.4% 17037777 perf-stat.ps.cache-misses
21758871 +119.2% 47685960 perf-stat.ps.cache-references
1.578e+08 ± 5% -40.1% 94495593 ± 10% perf-stat.ps.dTLB-load-misses
1.131e+10 -40.4% 6.741e+09 perf-stat.ps.dTLB-loads
1.361e+08 -41.4% 79747745 perf-stat.ps.dTLB-store-misses
1.046e+10 -41.0% 6.169e+09 perf-stat.ps.dTLB-stores
3.862e+10 -40.1% 2.314e+10 perf-stat.ps.instructions
160758 ± 3% +4578.7% 7521403 perf-stat.ps.node-load-misses
224053 ± 2% +3702.9% 8520470 perf-stat.ps.node-loads
5043253 +49.6% 7544873 perf-stat.ps.node-store-misses
5187483 +57.1% 8148130 perf-stat.ps.node-stores
7197269 -41.9% 4178914 perf-stat.ps.page-faults
2.443e+12 -40.0% 1.465e+12 perf-stat.total.instructions
34.97 -12.5 22.49 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
19.95 -6.3 13.66 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.entry_SYSCALL_64_after_hwframe
13.13 -5.7 7.46 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret
12.64 -5.3 7.36 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.09 -3.7 4.43 perf-profile.calltrace.cycles-pp.__entry_text_start
5.60 -2.9 2.74 perf-profile.calltrace.cycles-pp.__setup_rt_frame.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
6.25 -2.7 3.52 ± 2% perf-profile.calltrace.cycles-pp.__x64_sys_rt_sigaction.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.19 -2.5 2.68 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_safe_stack
3.00 -1.6 1.41 ± 2% perf-profile.calltrace.cycles-pp.copy_fpstate_to_sigframe.__setup_rt_frame.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode
3.71 -1.5 2.26 ± 2% perf-profile.calltrace.cycles-pp.__x64_sys_rt_sigprocmask.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.22 ± 2% -1.0 1.20 ± 3% perf-profile.calltrace.cycles-pp._copy_from_user.__x64_sys_rt_sigaction.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.28 -0.9 1.35 perf-profile.calltrace.cycles-pp.__irqentry_text_end
2.10 ± 2% -0.9 1.19 perf-profile.calltrace.cycles-pp.do_sigaction.__x64_sys_rt_sigaction.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.34 ± 2% -0.6 0.69 ± 2% perf-profile.calltrace.cycles-pp.copy_siginfo_to_user.__setup_rt_frame.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode
1.19 ± 2% -0.5 0.71 ± 6% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.entry_SYSCALL_64_after_hwframe
0.92 ± 2% -0.5 0.45 ± 45% perf-profile.calltrace.cycles-pp.__might_fault._copy_from_user.__x64_sys_rt_sigaction.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.35 ± 5% -0.3 1.05 ± 4% perf-profile.calltrace.cycles-pp.__x86_indirect_thunk_rax.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.09 ± 2% -0.3 0.83 ± 4% perf-profile.calltrace.cycles-pp.signal_setup_done.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
1.07 -0.2 0.83 ± 2% perf-profile.calltrace.cycles-pp.fpu__clear.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
0.94 ± 2% -0.2 0.75 ± 5% perf-profile.calltrace.cycles-pp.__set_current_blocked.signal_setup_done.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode
0.97 ± 2% -0.1 0.86 ± 3% perf-profile.calltrace.cycles-pp.sigprocmask.__x64_sys_rt_sigprocmask.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.86 -0.1 0.79 ± 3% perf-profile.calltrace.cycles-pp.__set_current_blocked.sigprocmask.__x64_sys_rt_sigprocmask.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.61 ± 2% +0.3 0.96 perf-profile.calltrace.cycles-pp.signal_wake_up_state.__send_signal.force_sig_info_to_task.force_sig_fault.__bad_area_nosemaphore
0.00 +0.6 0.55 ± 3% perf-profile.calltrace.cycles-pp.__sigqueue_alloc.__send_signal.force_sig_info_to_task.force_sig.exc_general_protection
0.59 +0.6 1.15 ± 2% perf-profile.calltrace.cycles-pp.asm_exc_general_protection
0.58 ± 2% +0.6 1.14 ± 2% perf-profile.calltrace.cycles-pp.exc_general_protection.asm_exc_general_protection
0.00 +0.6 0.59 ± 3% perf-profile.calltrace.cycles-pp.__send_signal.force_sig_info_to_task.force_sig.exc_general_protection.asm_exc_general_protection
0.00 +0.6 0.61 ± 3% perf-profile.calltrace.cycles-pp.force_sig_info_to_task.force_sig.exc_general_protection.asm_exc_general_protection
0.00 +0.6 0.61 ± 3% perf-profile.calltrace.cycles-pp.force_sig.exc_general_protection.asm_exc_general_protection
0.00 +4.5 4.46 perf-profile.calltrace.cycles-pp.put_ucounts.__sigqueue_free.get_signal.arch_do_signal_or_restart.exit_to_user_mode_prepare
18.71 +6.1 24.85 perf-profile.calltrace.cycles-pp.irqentry_exit_to_user_mode.asm_exc_page_fault
14.80 +6.9 21.71 perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
14.33 +7.1 21.42 perf-profile.calltrace.cycles-pp.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
0.00 +8.8 8.81 perf-profile.calltrace.cycles-pp.get_ucounts.__sigqueue_alloc.__send_signal.force_sig_info_to_task.force_sig_fault
6.07 +10.7 16.73 perf-profile.calltrace.cycles-pp.get_signal.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
0.00 +10.8 10.82 perf-profile.calltrace.cycles-pp.dec_rlimit_ucounts.__sigqueue_free.get_signal.arch_do_signal_or_restart.exit_to_user_mode_prepare
3.82 +11.5 15.29 perf-profile.calltrace.cycles-pp.__sigqueue_free.get_signal.arch_do_signal_or_restart.exit_to_user_mode_prepare.irqentry_exit_to_user_mode
0.00 +13.8 13.76 perf-profile.calltrace.cycles-pp.inc_rlimit_ucounts.inc_rlimit_ucounts_and_test.__sigqueue_alloc.__send_signal.force_sig_info_to_task
0.00 +18.0 18.03 perf-profile.calltrace.cycles-pp.inc_rlimit_ucounts_and_test.__sigqueue_alloc.__send_signal.force_sig_info_to_task.force_sig_fault
10.89 +21.3 32.16 perf-profile.calltrace.cycles-pp.exc_page_fault.asm_exc_page_fault
10.54 +21.4 31.96 perf-profile.calltrace.cycles-pp.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
7.98 +22.2 30.18 perf-profile.calltrace.cycles-pp.__bad_area_nosemaphore.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
7.54 +22.3 29.88 perf-profile.calltrace.cycles-pp.force_sig_fault.__bad_area_nosemaphore.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
7.45 +22.4 29.83 perf-profile.calltrace.cycles-pp.force_sig_info_to_task.force_sig_fault.__bad_area_nosemaphore.do_user_addr_fault.exc_page_fault
6.62 +22.5 29.09 perf-profile.calltrace.cycles-pp.__send_signal.force_sig_info_to_task.force_sig_fault.__bad_area_nosemaphore.do_user_addr_fault
4.50 +22.9 27.38 perf-profile.calltrace.cycles-pp.__sigqueue_alloc.__send_signal.force_sig_info_to_task.force_sig_fault.__bad_area_nosemaphore
30.83 +26.8 57.65 perf-profile.calltrace.cycles-pp.asm_exc_page_fault
35.13 -12.5 22.61 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
20.04 -6.3 13.72 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
14.40 -6.2 8.17 perf-profile.children.cycles-pp.syscall_return_via_sysret
13.40 -5.4 7.96 perf-profile.children.cycles-pp.do_syscall_64
10.28 -4.7 5.56 perf-profile.children.cycles-pp.__entry_text_start
5.75 -2.9 2.82 perf-profile.children.cycles-pp.__setup_rt_frame
6.43 -2.8 3.63 ± 2% perf-profile.children.cycles-pp.__x64_sys_rt_sigaction
3.16 -1.7 1.49 ± 2% perf-profile.children.cycles-pp.copy_fpstate_to_sigframe
3.25 ± 2% -1.5 1.74 ± 3% perf-profile.children.cycles-pp._copy_from_user
3.75 -1.5 2.28 ± 2% perf-profile.children.cycles-pp.__x64_sys_rt_sigprocmask
3.02 -1.5 1.55 ± 2% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
2.18 -1.3 0.88 ± 2% perf-profile.children.cycles-pp.copy_user_generic_unrolled
2.49 -1.1 1.41 ± 2% perf-profile.children.cycles-pp.__might_fault
2.16 ± 2% -0.9 1.22 perf-profile.children.cycles-pp.do_sigaction
2.29 -0.9 1.35 perf-profile.children.cycles-pp.__irqentry_text_end
2.18 -0.9 1.25 perf-profile.children.cycles-pp.native_irq_return_iret
1.48 -0.8 0.70 ± 2% perf-profile.children.cycles-pp._copy_to_user
1.41 ± 2% -0.7 0.73 ± 2% perf-profile.children.cycles-pp.copy_siginfo_to_user
1.22 -0.6 0.63 ± 2% perf-profile.children.cycles-pp.___might_sleep
0.93 ± 2% -0.5 0.47 ± 3% perf-profile.children.cycles-pp.__might_sleep
1.64 -0.4 1.24 ± 2% perf-profile.children.cycles-pp._raw_spin_lock_irq
0.94 -0.4 0.55 ± 3% perf-profile.children.cycles-pp.__clear_user
0.81 ± 4% -0.3 0.48 ± 4% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.56 -0.3 0.26 ± 6% perf-profile.children.cycles-pp.sync_regs
0.73 ± 2% -0.3 0.44 ± 5% perf-profile.children.cycles-pp.__perf_sw_event
1.84 -0.3 1.56 ± 4% perf-profile.children.cycles-pp.__set_current_blocked
1.12 ± 2% -0.3 0.85 ± 4% perf-profile.children.cycles-pp.signal_setup_done
1.10 -0.2 0.85 perf-profile.children.cycles-pp.fpu__clear
0.42 ± 4% -0.2 0.18 ± 6% perf-profile.children.cycles-pp.complete_signal
0.45 -0.2 0.23 ± 3% perf-profile.children.cycles-pp.fixup_vdso_exception
0.40 ± 4% -0.2 0.19 ± 8% perf-profile.children.cycles-pp.kmem_cache_free
0.37 ± 4% -0.2 0.19 ± 9% perf-profile.children.cycles-pp.prepare_signal
0.72 ± 5% -0.2 0.55 ± 4% perf-profile.children.cycles-pp.__x86_indirect_thunk_rax
1.20 -0.2 1.03 ± 4% perf-profile.children.cycles-pp.recalc_sigpending
0.35 ± 2% -0.1 0.20 ± 5% perf-profile.children.cycles-pp.rcu_nocb_flush_deferred_wakeup
0.39 ± 4% -0.1 0.25 ± 11% perf-profile.children.cycles-pp.___perf_sw_event
0.29 ± 3% -0.1 0.15 ± 3% perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
1.00 ± 2% -0.1 0.87 ± 2% perf-profile.children.cycles-pp.sigprocmask
0.32 ± 4% -0.1 0.20 ± 5% perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
0.29 ± 2% -0.1 0.17 ± 4% perf-profile.children.cycles-pp.__cond_resched
0.24 ± 6% -0.1 0.13 ± 5% perf-profile.children.cycles-pp.find_vma
0.19 ± 4% -0.1 0.08 ± 8% perf-profile.children.cycles-pp.task_curr
0.30 ± 2% -0.1 0.20 ± 4% perf-profile.children.cycles-pp.__x86_retpoline_rax
0.12 ± 4% -0.1 0.03 ± 99% perf-profile.children.cycles-pp.kick_process
0.18 ± 3% -0.1 0.09 ± 10% perf-profile.children.cycles-pp.__get_user_nocheck_4
0.18 ± 2% -0.1 0.10 ± 7% perf-profile.children.cycles-pp.send_signal
0.18 ± 6% -0.1 0.10 ± 10% perf-profile.children.cycles-pp.perf_swevent_get_recursion_context
0.16 ± 5% -0.1 0.08 ± 7% perf-profile.children.cycles-pp.__local_bh_enable_ip
0.16 ± 9% -0.1 0.09 ± 4% perf-profile.children.cycles-pp.vmacache_find
0.18 ± 3% -0.1 0.11 ± 8% perf-profile.children.cycles-pp.rcu_all_qs
0.14 ± 7% -0.1 0.08 ± 8% perf-profile.children.cycles-pp.sigaction_compat_abi
0.11 ± 6% -0.1 0.06 ± 6% perf-profile.children.cycles-pp.fpu__alloc_mathframe
0.10 ± 5% -0.0 0.06 ± 11% perf-profile.children.cycles-pp.clear_user
0.18 ± 3% -0.0 0.16 ± 2% perf-profile.children.cycles-pp.down_read_trylock
0.14 ± 12% +0.1 0.21 ± 8% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
0.30 ± 2% +0.1 0.41 ± 6% perf-profile.children.cycles-pp.__bad_area
0.24 ± 3% +0.1 0.38 ± 7% perf-profile.children.cycles-pp.up_read
0.29 ± 3% +0.2 0.45 ± 3% perf-profile.children.cycles-pp.fpregs_mark_activate
0.63 ± 2% +0.4 0.98 perf-profile.children.cycles-pp.signal_wake_up_state
0.17 ± 4% +0.4 0.61 ± 3% perf-profile.children.cycles-pp.force_sig
0.59 +0.6 1.15 ± 2% perf-profile.children.cycles-pp.asm_exc_general_protection
0.58 +0.6 1.14 ± 2% perf-profile.children.cycles-pp.exc_general_protection
0.00 +4.5 4.55 perf-profile.children.cycles-pp.put_ucounts
19.45 +6.2 25.61 perf-profile.children.cycles-pp.irqentry_exit_to_user_mode
16.41 +6.5 22.92 perf-profile.children.cycles-pp.exit_to_user_mode_prepare
14.66 +7.2 21.87 perf-profile.children.cycles-pp.arch_do_signal_or_restart
0.00 +9.0 9.00 perf-profile.children.cycles-pp.get_ucounts
6.25 +10.8 17.09 perf-profile.children.cycles-pp.get_signal
0.00 +11.0 11.04 perf-profile.children.cycles-pp.dec_rlimit_ucounts
3.89 +11.7 15.63 perf-profile.children.cycles-pp.__sigqueue_free
0.00 +14.0 14.03 perf-profile.children.cycles-pp.inc_rlimit_ucounts
0.00 +18.4 18.39 perf-profile.children.cycles-pp.inc_rlimit_ucounts_and_test
10.93 +21.3 32.19 perf-profile.children.cycles-pp.exc_page_fault
10.61 +21.4 32.00 perf-profile.children.cycles-pp.do_user_addr_fault
8.01 +22.2 30.19 perf-profile.children.cycles-pp.__bad_area_nosemaphore
7.55 +22.3 29.88 perf-profile.children.cycles-pp.force_sig_fault
7.64 +22.8 30.46 perf-profile.children.cycles-pp.force_sig_info_to_task
6.83 +22.9 29.71 perf-profile.children.cycles-pp.__send_signal
4.62 +23.3 27.95 perf-profile.children.cycles-pp.__sigqueue_alloc
30.88 +26.8 57.68 perf-profile.children.cycles-pp.asm_exc_page_fault
14.37 -6.2 8.15 perf-profile.self.cycles-pp.syscall_return_via_sysret
18.54 -5.7 12.81 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
10.28 -4.7 5.56 perf-profile.self.cycles-pp.__entry_text_start
4.24 -4.1 0.19 ± 10% perf-profile.self.cycles-pp.__sigqueue_alloc
3.77 -3.7 0.07 ± 14% perf-profile.self.cycles-pp.__sigqueue_free
2.11 -1.3 0.84 ± 2% perf-profile.self.cycles-pp.copy_user_generic_unrolled
2.29 -0.9 1.35 perf-profile.self.cycles-pp.__irqentry_text_end
2.17 -0.9 1.24 perf-profile.self.cycles-pp.native_irq_return_iret
4.29 -0.8 3.44 ± 2% perf-profile.self.cycles-pp.irqentry_exit_to_user_mode
2.20 ± 2% -0.8 1.40 ± 2% perf-profile.self.cycles-pp.do_syscall_64
1.92 -0.8 1.14 ± 4% perf-profile.self.cycles-pp.__x64_sys_rt_sigaction
1.75 -0.8 0.97 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
1.63 ± 2% -0.8 0.85 ± 3% perf-profile.self.cycles-pp.copy_fpstate_to_sigframe
1.19 -0.6 0.62 ± 2% perf-profile.self.cycles-pp.___might_sleep
1.41 -0.6 0.85 ± 3% perf-profile.self.cycles-pp.exit_to_user_mode_prepare
1.20 ± 3% -0.6 0.65 perf-profile.self.cycles-pp.do_sigaction
1.08 ± 3% -0.5 0.54 ± 4% perf-profile.self.cycles-pp.__setup_rt_frame
0.84 ± 3% -0.5 0.33 ± 5% perf-profile.self.cycles-pp.asm_exc_page_fault
1.05 ± 2% -0.5 0.56 ± 3% perf-profile.self.cycles-pp.__x64_sys_rt_sigprocmask
0.84 ± 2% -0.4 0.42 ± 3% perf-profile.self.cycles-pp.__might_sleep
0.81 -0.4 0.40 ± 2% perf-profile.self.cycles-pp.fpu__clear
0.82 -0.4 0.42 ± 3% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
1.59 -0.4 1.22 ± 3% perf-profile.self.cycles-pp._raw_spin_lock_irq
0.78 ± 3% -0.3 0.44 ± 5% perf-profile.self.cycles-pp.get_signal
0.78 ± 2% -0.3 0.45 ± 3% perf-profile.self.cycles-pp._copy_from_user
0.69 ± 4% -0.3 0.36 ± 6% perf-profile.self.cycles-pp.__send_signal
0.59 ± 2% -0.3 0.28 ± 3% perf-profile.self.cycles-pp.__clear_user
0.72 -0.3 0.42 ± 3% perf-profile.self.cycles-pp.do_user_addr_fault
0.70 ± 3% -0.3 0.43 ± 4% perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.51 -0.3 0.24 ± 7% perf-profile.self.cycles-pp.sync_regs
0.77 ± 3% -0.2 0.52 ± 2% perf-profile.self.cycles-pp.__might_fault
0.40 ± 4% -0.2 0.19 ± 9% perf-profile.self.cycles-pp.kmem_cache_free
0.44 ± 2% -0.2 0.23 ± 3% perf-profile.self.cycles-pp.fixup_vdso_exception
0.34 ± 3% -0.2 0.16 ± 5% perf-profile.self.cycles-pp._copy_to_user
0.35 ± 4% -0.2 0.18 ± 4% perf-profile.self.cycles-pp.__set_current_blocked
0.35 ± 4% -0.2 0.19 ± 9% perf-profile.self.cycles-pp.prepare_signal
0.40 ± 2% -0.2 0.23 ± 4% perf-profile.self.cycles-pp.arch_do_signal_or_restart
0.30 ± 3% -0.1 0.17 ± 5% perf-profile.self.cycles-pp.rcu_nocb_flush_deferred_wakeup
0.22 ± 4% -0.1 0.10 ± 7% perf-profile.self.cycles-pp.complete_signal
0.26 ± 3% -0.1 0.14 ± 2% perf-profile.self.cycles-pp.__bad_area_nosemaphore
0.26 ± 3% -0.1 0.15 ± 4% perf-profile.self.cycles-pp.exc_page_fault
0.18 ± 6% -0.1 0.07 ± 12% perf-profile.self.cycles-pp.task_curr
0.31 ± 8% -0.1 0.20 ± 14% perf-profile.self.cycles-pp.___perf_sw_event
0.29 ± 3% -0.1 0.18 ± 5% perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare
0.20 ± 3% -0.1 0.10 ± 4% perf-profile.self.cycles-pp.force_sig_info_to_task
0.26 ± 3% -0.1 0.18 ± 4% perf-profile.self.cycles-pp.__x86_retpoline_rax
0.17 ± 5% -0.1 0.09 ± 9% perf-profile.self.cycles-pp.__perf_sw_event
0.98 -0.1 0.90 perf-profile.self.cycles-pp.recalc_sigpending
0.16 ± 5% -0.1 0.09 ± 8% perf-profile.self.cycles-pp.sigprocmask
0.16 ± 2% -0.1 0.08 ± 5% perf-profile.self.cycles-pp.__get_user_nocheck_4
0.17 ± 5% -0.1 0.10 ± 8% perf-profile.self.cycles-pp.perf_swevent_get_recursion_context
0.14 ± 6% -0.1 0.07 ± 8% perf-profile.self.cycles-pp.__local_bh_enable_ip
0.15 ± 3% -0.1 0.09 ± 5% perf-profile.self.cycles-pp.signal_setup_done
0.13 ± 7% -0.1 0.07 ± 5% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
0.14 ± 11% -0.1 0.08 ± 4% perf-profile.self.cycles-pp.vmacache_find
0.16 ± 5% -0.1 0.10 ± 9% perf-profile.self.cycles-pp.rcu_all_qs
0.12 ± 6% -0.1 0.07 ± 8% perf-profile.self.cycles-pp.__set_task_blocked
0.11 ± 7% -0.1 0.06 ± 6% perf-profile.self.cycles-pp.send_signal
0.10 ± 4% -0.0 0.06 ± 9% perf-profile.self.cycles-pp.__cond_resched
0.10 ± 5% -0.0 0.05 perf-profile.self.cycles-pp.fpu__alloc_mathframe
0.11 ± 6% -0.0 0.07 ± 11% perf-profile.self.cycles-pp.sigaction_compat_abi
0.11 ± 6% -0.0 0.07 ± 11% perf-profile.self.cycles-pp.copy_siginfo_to_user
0.09 ± 8% -0.0 0.06 ± 13% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.23 ± 4% +0.1 0.37 ± 7% perf-profile.self.cycles-pp.up_read
0.28 ± 3% +0.2 0.45 ± 3% perf-profile.self.cycles-pp.fpregs_mark_activate
0.41 ± 3% +0.4 0.77 ± 2% perf-profile.self.cycles-pp.signal_wake_up_state
0.00 +4.4 4.36 perf-profile.self.cycles-pp.inc_rlimit_ucounts_and_test
0.00 +4.5 4.54 perf-profile.self.cycles-pp.put_ucounts
0.00 +9.0 8.99 perf-profile.self.cycles-pp.get_ucounts
0.00 +11.0 11.01 perf-profile.self.cycles-pp.dec_rlimit_ucounts
0.00 +14.0 14.03 perf-profile.self.cycles-pp.inc_rlimit_ucounts
stress-ng.time.user_time
1350 +--------------------------------------------------------------------+
1300 |.+ .+ .+ +.++. |
| ++.++.+.++.++.+ + +.+.++.++.+.++.+.++.++.+.++. +.+.+ +.++.++.|
1250 |-+ + |
1200 |-+ |
1150 |-+ |
1100 |-+ |
| |
1050 |-+ |
1000 |-+ |
950 |-+ |
900 |-+ |
| |
850 |-OO OO O OO OO O OO OO O OO OO O OO O OO |
800 +--------------------------------------------------------------------+
stress-ng.time.system_time
2050 +--------------------------------------------------------------------+
2000 |-OO OO O OO OO O O OO O OO O O OO O OO |
| O O |
1950 |-+ |
1900 |-+ |
1850 |-+ |
1800 |-+ |
| |
1750 |-+ |
1700 |-+ |
1650 |-+ |
1600 |-+ |
|.++.++.+. +. +.+.++.+ .+.++.+.++.++.+.++.++.+.+ +.+ .|
1550 |-+ + ++.+.++.+ + +.++.+.+ + |
1500 +--------------------------------------------------------------------+
stress-ng.sigsegv.ops
5e+08 +-----------------------------------------------------------------+
|.++.++.++.++.++.++.++. |
| +.++.++.++.++.++.++.+.++.++.++.++.++.++.++.|
4.5e+08 |-+ |
| |
| |
4e+08 |-+ |
| |
3.5e+08 |-+ |
| |
| |
3e+08 |-+ |
| OO OO OO O |
| O OO OO OO O OO OO OO OO OO |
2.5e+08 +-----------------------------------------------------------------+
stress-ng.sigsegv.ops_per_sec
8.5e+06 +-----------------------------------------------------------------+
| +. |
8e+06 |.++.++.++.+ ++.++.++.+.++.++.++.++.++.++.+. +. +.++.++.++.++.++.|
7.5e+06 |-+ + + |
| |
7e+06 |-+ |
6.5e+06 |-+ |
| |
6e+06 |-+ |
5.5e+06 |-+ |
| |
5e+06 |-+ |
4.5e+06 |-OO OO OO O O O O O OO OO OO |
| O O O OO OO O |
4e+06 +-----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
Thanks,
Oliver Sang
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