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Date: Mon, 18 Feb 2019 09:36:02 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Bob Moore <robert.moore@...el.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Erik Schmauss <erik.schmauss@...el.com>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: [LKP] [ACPICA] 4c1379d7bb: reaim.jobs_per_min -2.8% regression
Greeting,
FYI, we noticed a -2.8% regression of reaim.jobs_per_min due to commit:
commit: 4c1379d7bb42fa664e0784539208ed74108c53f1 ("ACPICA: Debug output: Add option to display method/object evaluation")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: ftq
on test machine: 256 threads Phi with 96G memory
with following parameters:
nr_task: 100%
samples: 6000ss
test: cache
freq: 20
cpufreq_governor: performance
test-description: The FTQ benchmarks measure hardware and software interference or 'noise' on a node from the applications perspective.
test-url: https://github.com/rminnich/ftq
In addition to that, the commit also has significant impact on the following tests:
+------------------+---------------------------------------------------------------------------+
| testcase: change | perf_test: perf_test.msr_test.round1.cpu_util_zero.pass -100.0% undefined |
| test machine | 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory |
| test parameters | type=lkp |
| | ucode=0x3d |
+------------------+---------------------------------------------------------------------------+
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 run job.yaml
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_job/nr_task/rootfs/runtime/tbox_group/test/testcase/ucode:
gcc-7/performance/x86_64-rhel-7.2/1500/100%/debian-x86_64-2018-04-03.cgz/300s/lkp-hsw-ep2/all_utime/reaim/0x3d
commit:
73a049a90f ("ACPICA: disassembler: disassemble OEMx tables as AML")
4c1379d7bb ("ACPICA: Debug output: Add option to display method/object evaluation")
73a049a90fb241af 4c1379d7bb42fa664e07845392
---------------- --------------------------
%stddev %change %stddev
\ | \
0.07 ± 3% +20.2% 0.09 ± 12% reaim.child_systime
308866 -2.8% 300200 reaim.jobs_per_min
4289 -2.8% 4169 reaim.jobs_per_min_child
314258 -2.7% 305679 reaim.max_jobs_per_min
20.93 +2.9% 21.53 reaim.parent_time
0.44 ± 9% +84.5% 0.82 ± 6% reaim.std_dev_percent
0.09 ± 9% +83.7% 0.17 ± 6% reaim.std_dev_time
321.38 -4.7% 306.29 reaim.time.elapsed_time
321.38 -4.7% 306.29 reaim.time.elapsed_time.max
127264 ± 2% +40.6% 178887 reaim.time.involuntary_context_switches
93024 ± 2% -8.4% 85173 reaim.time.minor_page_faults
6448 -2.6% 6282 reaim.time.percent_of_cpu_this_job_got
20724 -7.2% 19241 reaim.time.user_time
4929 -6.9% 4591 reaim.time.voluntary_context_switches
1512000 -7.1% 1404000 reaim.workload
442.00 ±158% -100.0% 0.00 meminfo.Mlocked
0.03 ± 2% +0.1 0.11 mpstat.cpu.sys%
1231 +56.9% 1932 ± 3% vmstat.system.cs
63.75 ±158% -100.0% 0.00 numa-vmstat.node0.nr_mlock
46.25 ±159% -100.0% 0.00 numa-vmstat.node1.nr_mlock
1.50 ± 15% -0.3 1.24 ± 15% perf-stat.overall.cache-miss-rate%
50.13 ± 3% +6.4 56.58 ± 5% perf-stat.overall.iTLB-load-miss-rate%
566199 ± 6% -23.7% 432237 ± 7% perf-stat.overall.instructions-per-iTLB-miss
59.86 ± 3% -23.1 36.79 ± 10% perf-stat.overall.node-store-miss-rate%
6653969 ± 8% +25.4% 8340919 ± 14% perf-stat.ps.cache-references
1202 +56.7% 1884 ± 4% perf-stat.ps.context-switches
185718 ± 5% +28.9% 239386 ± 7% perf-stat.ps.iTLB-load-misses
2755 -1.5% 2713 perf-stat.ps.minor-faults
22055 ± 22% -41.6% 12879 ± 11% perf-stat.ps.node-store-misses
14552 ± 12% +53.3% 22311 ± 14% perf-stat.ps.node-stores
2755 -1.5% 2713 perf-stat.ps.page-faults
3.414e+13 -7.1% 3.172e+13 perf-stat.total.instructions
69181 -1.7% 67973 proc-vmstat.nr_active_anon
6177 +4.6% 6461 proc-vmstat.nr_mapped
109.50 ±159% -100.0% 0.00 proc-vmstat.nr_mlock
69181 -1.7% 67973 proc-vmstat.nr_zone_active_anon
17125 ± 10% -55.2% 7668 ± 20% proc-vmstat.numa_hint_faults
4847 ± 80% -81.0% 920.75 ± 85% proc-vmstat.numa_hint_faults_local
799546 -5.8% 753399 proc-vmstat.numa_hit
785482 -5.9% 739309 proc-vmstat.numa_local
63641 ± 34% -57.8% 26863 ± 93% proc-vmstat.numa_pte_updates
861155 -5.6% 812594 proc-vmstat.pgalloc_normal
922986 -6.5% 863086 proc-vmstat.pgfault
833697 -5.8% 785608 proc-vmstat.pgfree
17.88 ± 5% -4.2 13.72 ± 21% perf-profile.calltrace.cycles-pp.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues
8.65 ± 10% -2.8 5.83 ± 26% perf-profile.calltrace.cycles-pp.clockevents_program_event.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
3.81 ± 39% -1.9 1.89 ± 30% perf-profile.calltrace.cycles-pp.ktime_get.clockevents_program_event.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
4.05 ± 6% -1.3 2.72 ± 25% perf-profile.calltrace.cycles-pp.ktime_get_update_offsets_now.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
3.42 ±100% -1.3 2.11 ±173% perf-profile.calltrace.cycles-pp.irq_work_interrupt
3.42 ±100% -1.3 2.11 ±173% perf-profile.calltrace.cycles-pp.smp_irq_work_interrupt.irq_work_interrupt
3.40 ±100% -1.3 2.11 ±173% perf-profile.calltrace.cycles-pp.irq_work_run_list.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt
3.40 ±100% -1.3 2.11 ±173% perf-profile.calltrace.cycles-pp.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt
3.40 ±100% -1.1 2.27 ±173% perf-profile.calltrace.cycles-pp.printk.irq_work_run_list.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt
3.40 ±100% -1.1 2.27 ±173% perf-profile.calltrace.cycles-pp.vprintk_emit.printk.irq_work_run_list.irq_work_run.smp_irq_work_interrupt
3.40 ±100% -1.1 2.27 ±173% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.printk.irq_work_run_list.irq_work_run
3.38 ±100% -1.1 2.30 ±173% perf-profile.calltrace.cycles-pp.secondary_startup_64
3.38 ±100% -1.1 2.30 ±173% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64
3.38 ±100% -1.1 2.30 ±173% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64
3.37 ±100% -1.1 2.30 ±173% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
3.33 ±100% -1.0 2.29 ±173% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
3.29 ±101% -1.0 2.29 ±173% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary
2.59 ± 13% -0.8 1.78 ± 20% perf-profile.calltrace.cycles-pp.__update_load_avg_se.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle
1.37 ± 11% -0.7 0.65 ± 64% perf-profile.calltrace.cycles-pp.timerqueue_del.__remove_hrtimer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt
2.93 ±101% -0.7 2.21 ±173% perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.printk.irq_work_run_list
2.04 ± 13% -0.7 1.35 ± 30% perf-profile.calltrace.cycles-pp.update_curr.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle
0.80 ± 16% -0.5 0.30 ±100% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
0.00 +5.5e+11% 5530 ±110% sched_debug.cfs_rq:/.MIN_vruntime.avg
12338 +45.3% 17924 ± 7% sched_debug.cfs_rq:/.load.avg
39464 ± 43% +709.9% 319609 ± 46% sched_debug.cfs_rq:/.load.max
5132 ± 59% +704.6% 41295 ± 41% sched_debug.cfs_rq:/.load.stddev
299.73 ± 28% +60.1% 479.92 ± 19% sched_debug.cfs_rq:/.load_avg.max
52.90 ± 37% +48.5% 78.55 ± 11% sched_debug.cfs_rq:/.load_avg.stddev
0.00 +5.5e+11% 5530 ±110% sched_debug.cfs_rq:/.max_vruntime.avg
56400 ± 32% +258.5% 202169 ± 5% sched_debug.cfs_rq:/.min_vruntime.stddev
0.08 ± 13% +26.3% 0.10 ± 11% sched_debug.cfs_rq:/.nr_running.stddev
11.16 ± 6% +26.1% 14.08 ± 4% sched_debug.cfs_rq:/.runnable_load_avg.avg
34.70 ± 30% +486.6% 203.54 ± 30% sched_debug.cfs_rq:/.runnable_load_avg.max
3.74 ± 31% +599.1% 26.17 ± 30% sched_debug.cfs_rq:/.runnable_load_avg.stddev
12213 +46.1% 17837 ± 7% sched_debug.cfs_rq:/.runnable_weight.avg
35964 ± 43% +788.0% 319358 ± 46% sched_debug.cfs_rq:/.runnable_weight.max
4732 ± 62% +770.0% 41175 ± 42% sched_debug.cfs_rq:/.runnable_weight.stddev
40678 ±144% +3754.8% 1568088 ± 2% sched_debug.cfs_rq:/.spread0.avg
127330 ± 55% +1238.0% 1703696 ± 3% sched_debug.cfs_rq:/.spread0.max
-87205 -98.1% -1677 sched_debug.cfs_rq:/.spread0.min
56217 ± 32% +259.5% 202080 ± 5% sched_debug.cfs_rq:/.spread0.stddev
698851 ± 8% -16.4% 584422 ± 9% sched_debug.cpu.avg_idle.min
165933 ± 7% +13.4% 188123 sched_debug.cpu.clock.avg
165941 ± 7% +13.4% 188129 sched_debug.cpu.clock.max
165919 ± 7% +13.4% 188115 sched_debug.cpu.clock.min
5.35 ± 23% -32.9% 3.59 ± 7% sched_debug.cpu.clock.stddev
165933 ± 7% +13.4% 188123 sched_debug.cpu.clock_task.avg
165941 ± 7% +13.4% 188129 sched_debug.cpu.clock_task.max
165919 ± 7% +13.4% 188115 sched_debug.cpu.clock_task.min
5.35 ± 23% -32.9% 3.59 ± 7% sched_debug.cpu.clock_task.stddev
11.33 ± 4% +19.3% 13.51 ± 9% sched_debug.cpu.cpu_load[0].avg
38.97 ± 28% +418.2% 201.92 ± 30% sched_debug.cpu.cpu_load[0].max
4.46 ± 41% +443.0% 24.23 ± 33% sched_debug.cpu.cpu_load[0].stddev
11.43 ± 4% +17.6% 13.44 ± 8% sched_debug.cpu.cpu_load[1].avg
37.25 ± 26% +418.9% 193.29 ± 30% sched_debug.cpu.cpu_load[1].max
4.08 ± 36% +463.5% 23.00 ± 35% sched_debug.cpu.cpu_load[1].stddev
11.49 ± 4% +16.2% 13.34 ± 7% sched_debug.cpu.cpu_load[2].avg
35.41 ± 21% +398.6% 176.54 ± 30% sched_debug.cpu.cpu_load[2].max
3.74 ± 31% +460.0% 20.96 ± 34% sched_debug.cpu.cpu_load[2].stddev
34.54 ± 14% +336.3% 150.71 ± 21% sched_debug.cpu.cpu_load[3].max
3.51 ± 22% +407.6% 17.84 ± 27% sched_debug.cpu.cpu_load[3].stddev
55.55 +164.1% 146.71 ± 15% sched_debug.cpu.cpu_load[4].max
5.57 ± 6% +202.7% 16.85 ± 18% sched_debug.cpu.cpu_load[4].stddev
4396 ± 6% +13.1% 4974 ± 7% sched_debug.cpu.curr->pid.avg
3517 ± 17% -47.9% 1832 ± 34% sched_debug.cpu.curr->pid.min
305.14 ± 37% +98.3% 604.98 ± 22% sched_debug.cpu.curr->pid.stddev
12364 +39.5% 17254 ± 14% sched_debug.cpu.load.avg
39007 ± 44% +721.4% 320411 ± 46% sched_debug.cpu.load.max
5044 ± 63% +681.3% 39414 ± 48% sched_debug.cpu.load.stddev
133158 ± 9% +16.9% 155714 sched_debug.cpu.nr_load_updates.avg
140928 ± 9% +15.6% 162887 sched_debug.cpu.nr_load_updates.max
1369 ± 37% +66.8% 2283 ± 4% sched_debug.cpu.nr_load_updates.stddev
0.19 ± 3% +22.7% 0.23 ± 15% sched_debug.cpu.nr_running.stddev
3143 ± 6% +52.3% 4788 ± 3% sched_debug.cpu.nr_switches.avg
11472 ± 19% +67.3% 19197 ± 3% sched_debug.cpu.nr_switches.max
2464 ± 19% +73.5% 4275 ± 6% sched_debug.cpu.nr_switches.stddev
165920 ± 7% +13.4% 188116 sched_debug.cpu_clk
162590 ± 7% +13.6% 184783 sched_debug.ktime
167206 ± 6% +13.6% 189868 sched_debug.sched_clk
ftq.time.involuntary_context_switches
260000 +-+----------------------------------------------------------------+
|O |
240000 +-+ O |
220000 O-+ O O |
| O O O O O |
200000 +-+ O |
180000 +-+ O OO OO OO O OOO O OO OO OO OO
| O O O |
160000 +-+ O OOO O O O O O O |
140000 +-+ O O O |
| |
120000 +-+ + |
100000 +-+ +. +. .+ :+ |
|+.+ ++.++.++.++ ++.++ +.+ ++.+++.++.++.++.++.+++.++ |
80000 +-+----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
***************************************************************************************************
lkp-hsw-ep2: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory
=========================================================================================
compiler/kconfig/rootfs/tbox_group/testcase/type/ucode:
gcc-7/x86_64-rhel-7.2/debian-x86_64-2018-04-03.cgz/lkp-hsw-ep2/perf_test/lkp/0x3d
commit:
73a049a90f ("ACPICA: disassembler: disassemble OEMx tables as AML")
4c1379d7bb ("ACPICA: Debug output: Add option to display method/object evaluation")
73a049a90fb241af 4c1379d7bb42fa664e07845392
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
:8 100% 8:8 perf_test.msr_test.round1.cpu_util_zero.fail
%stddev %change %stddev
\ | \
1.00 -100.0% 0.00 perf_test.msr_test.round1.cpu_util_zero.pass
1432 +13.1% 1620 ± 3% perf_test.time.elapsed_time
1432 +13.1% 1620 ± 3% perf_test.time.elapsed_time.max
43385 -6.9% 40403 ± 2% perf_test.time.involuntary_context_switches
76.62 ± 2% +16.3% 89.12 ± 2% perf_test.time.percent_of_cpu_this_job_got
295.24 +17.2% 346.06 ± 13% perf_test.time.system_time
810.50 +36.5% 1106 ± 2% perf_test.time.user_time
360596 +43.1% 515953 ± 17% perf_test.time.voluntary_context_switches
16568 +46.1% 24206 meminfo.Inactive(anon)
30398 +16.8% 35515 meminfo.Mapped
1843 ± 10% +9.1% 2010 ± 7% meminfo.Mlocked
19473 +39.3% 27124 meminfo.Shmem
2897 -11.6% 2561 ± 3% meminfo.max_used_kB
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,
Rong Chen
View attachment "config-4.20.0-rc3-00015-g4c1379d" of type "text/plain" (108428 bytes)
View attachment "job-script" of type "text/plain" (4411 bytes)
View attachment "job.yaml" of type "text/plain" (3801 bytes)
View attachment "reproduce" of type "text/plain" (314 bytes)
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