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Date: Tue, 21 Jun 2016 10:15:52 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Len Brown <len.brown@...el.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
Len Brown <len.brown@...el.com>, linux-pm@...r.kernel.org,
linux-acpi@...r.kernel.org, lkp@...org
Subject: [lkp] [x86 tsc_msr] 8c82d5a94b: unixbench.score -15.6% regression
FYI, we noticed a -15.6% regression of unixbench.score due to commit:
commit 8c82d5a94b754b6015f8cf8ea1fde15821fc6611 ("x86 tsc_msr: Extend to include Intel Core Architecture")
https://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git release
in testcase: unixbench
on test machine: lkp-bdw-de1: 16 threads Broadwell-DE with 8G memory
with following parameters: cpufreq_governor=performance/nr_task=1/runtime=300s/test=whetstone-double
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/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_task/rootfs/runtime/tbox_group/test/testcase:
gcc-4.9/performance/x86_64-rhel/1/debian-x86_64-2015-02-07.cgz/300s/lkp-bdw-de1/whetstone-double/unixbench
commit:
abc6a0f4b18281410da1a3f26e2819d8e03e144f
8c82d5a94b754b6015f8cf8ea1fde15821fc6611
abc6a0f4b1828141 8c82d5a94b754b6015f8cf8ea1
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
1:4 -25% :4 kmsg.Spurious_LAPIC_timer_interrupt_on_cpu
%stddev %change %stddev
\ | \
816.90 ± 0% -15.6% 689.82 ± 0% unixbench.score
462.07 ± 0% +2.3% 472.47 ± 0% unixbench.time.elapsed_time
462.07 ± 0% +2.3% 472.47 ± 0% unixbench.time.elapsed_time.max
80.00 ± 0% +1.2% 81.00 ± 0% unixbench.time.percent_of_cpu_this_job_got
371.83 ± 0% +3.0% 383.12 ± 0% unixbench.time.user_time
613.50 ± 4% +23.0% 754.50 ± 2% vmstat.system.cs
16034 ± 0% +76.0% 28213 ± 1% vmstat.system.in
5852 ± 0% +14.3% 6692 ± 4% proc-vmstat.nr_active_anon
2404 ± 0% +24.5% 2993 ± 1% proc-vmstat.nr_shmem
1389 ± 1% +62.4% 2257 ± 9% proc-vmstat.pgactivate
39227 ± 0% +9.3% 42862 ± 2% meminfo.Active
23426 ± 0% +14.3% 26777 ± 4% meminfo.Active(anon)
4082 ± 0% +24.9% 5098 ± 19% meminfo.AnonHugePages
9619 ± 0% +24.5% 11974 ± 1% meminfo.Shmem
498549 ± 4% +367.4% 2330223 ± 3% cpuidle.C1-BDW.time
57855 ± 3% +62.4% 93954 ± 2% cpuidle.C1-BDW.usage
6366987 ± 26% -24.3% 4821327 ± 2% cpuidle.C3-BDW.time
6.651e+09 ± 0% -72.3% 1.841e+09 ± 9% cpuidle.C6-BDW.time
7056683 ± 0% -72.6% 1935634 ± 9% cpuidle.C6-BDW.usage
13526734 ± 34% +37932.5% 5.145e+09 ± 3% cpuidle.POLL.time
1302 ± 2% +3739.8% 50004 ± 6% cpuidle.POLL.usage
8.09 ± 0% +826.0% 74.94 ± 3% turbostat.%Busy
189.50 ± 1% +890.8% 1877 ± 3% turbostat.Avg_MHz
31.16 ± 0% -75.6% 7.59 ± 9% turbostat.CPU%c1
0.04 ± 45% -77.8% 0.01 ± 0% turbostat.CPU%c3
60.71 ± 0% -71.2% 17.46 ± 10% turbostat.CPU%c6
56.25 ± 0% +13.8% 64.00 ± 1% turbostat.CoreTmp
1.52 ± 2% -99.7% 0.01 ±173% turbostat.Pkg%pc2
0.01 ± 34% -100.0% 0.00 ± -1% turbostat.Pkg%pc3
9.95 ± 1% -99.6% 0.04 ±116% turbostat.Pkg%pc6
55.25 ± 0% +15.8% 64.00 ± 1% turbostat.PkgTmp
19.25 ± 0% +55.8% 29.98 ± 1% turbostat.PkgWatt
1.396e+09 ± 0% -43.3% 7.92e+08 ± 1% perf-stat.L1-dcache-load-misses
2.502e+11 ± 0% +264.8% 9.128e+11 ± 2% perf-stat.L1-dcache-loads
1.205e+11 ± 1% -19.8% 9.659e+10 ± 1% perf-stat.L1-dcache-stores
1.978e+09 ± 0% -62.8% 7.362e+08 ± 7% perf-stat.L1-icache-load-misses
8.09e+08 ± 0% -58.1% 3.391e+08 ± 4% perf-stat.LLC-loads
6.025e+08 ± 0% -56.2% 2.641e+08 ± 4% perf-stat.LLC-stores
1.55e+11 ± 3% +435.3% 8.3e+11 ± 3% perf-stat.branch-instructions
1.546e+09 ± 0% -34.0% 1.02e+09 ± 1% perf-stat.branch-load-misses
1.519e+11 ± 0% +445.3% 8.284e+11 ± 2% perf-stat.branch-loads
1.515e+09 ± 0% -34.9% 9.861e+08 ± 1% perf-stat.branch-misses
5.222e+10 ± 0% +971.5% 5.596e+11 ± 3% perf-stat.bus-cycles
4.109e+09 ± 0% -62.0% 1.561e+09 ± 5% perf-stat.cache-misses
4.087e+09 ± 0% -62.2% 1.547e+09 ± 6% perf-stat.cache-references
282484 ± 4% +25.9% 355784 ± 2% perf-stat.context-switches
1.261e+12 ± 0% +1010.8% 1.401e+13 ± 3% perf-stat.cpu-cycles
2.378e+08 ± 0% -66.2% 80299694 ± 7% perf-stat.dTLB-load-misses
2.495e+11 ± 0% +266.4% 9.14e+11 ± 2% perf-stat.dTLB-loads
39543763 ± 0% -69.1% 12232186 ± 8% perf-stat.dTLB-store-misses
1.191e+11 ± 1% -18.4% 9.722e+10 ± 0% perf-stat.dTLB-stores
89967876 ± 39% -72.8% 24439509 ± 9% perf-stat.iTLB-load-misses
48505118 ± 0% -73.9% 12652529 ± 5% perf-stat.iTLB-loads
1.341e+12 ± 3% +193.5% 3.934e+12 ± 2% perf-stat.instructions
543009 ± 0% +3.2% 560464 ± 1% perf-stat.minor-faults
542964 ± 0% +3.2% 560437 ± 1% perf-stat.page-faults
1.097e+12 ± 0% +971.6% 1.176e+13 ± 3% perf-stat.ref-cycles
1.97 ± 80% +1290.8% 27.39 ± 84% sched_debug.cfs_rq:/.MIN_vruntime.avg
31.52 ± 80% +1290.8% 438.31 ± 84% sched_debug.cfs_rq:/.MIN_vruntime.max
7.63 ± 80% +1290.8% 106.10 ± 84% sched_debug.cfs_rq:/.MIN_vruntime.stddev
253.54 ± 6% -9.6% 229.17 ± 6% sched_debug.cfs_rq:/.load_avg.stddev
1.97 ± 80% +1292.0% 27.42 ± 84% sched_debug.cfs_rq:/.max_vruntime.avg
31.52 ± 80% +1292.0% 438.68 ± 84% sched_debug.cfs_rq:/.max_vruntime.max
7.63 ± 80% +1292.0% 106.19 ± 84% sched_debug.cfs_rq:/.max_vruntime.stddev
213.91 ± 5% -9.5% 193.53 ± 0% sched_debug.cpu.cpu_load[0].stddev
901.94 ± 1% -12.3% 790.97 ± 1% sched_debug.cpu.cpu_load[1].max
217.75 ± 2% -12.5% 190.58 ± 0% sched_debug.cpu.cpu_load[1].stddev
895.38 ± 3% -12.4% 784.59 ± 1% sched_debug.cpu.cpu_load[2].max
216.46 ± 4% -12.7% 188.90 ± 1% sched_debug.cpu.cpu_load[2].stddev
880.84 ± 4% -11.7% 777.62 ± 1% sched_debug.cpu.cpu_load[3].max
213.30 ± 5% -12.3% 187.05 ± 1% sched_debug.cpu.cpu_load[3].stddev
867.22 ± 5% -11.3% 769.41 ± 0% sched_debug.cpu.cpu_load[4].max
210.20 ± 5% -11.8% 185.34 ± 0% sched_debug.cpu.cpu_load[4].stddev
10216 ± 2% +18.4% 12096 ± 2% sched_debug.cpu.nr_switches.avg
28571 ± 16% +48.8% 42525 ± 6% sched_debug.cpu.nr_switches.max
7768 ± 5% +45.7% 11316 ± 8% sched_debug.cpu.nr_switches.stddev
8265 ± 2% +21.7% 10056 ± 2% sched_debug.cpu.sched_count.avg
25938 ± 22% +49.1% 38684 ± 10% sched_debug.cpu.sched_count.max
7071 ± 9% +46.0% 10324 ± 10% sched_debug.cpu.sched_count.stddev
3783 ± 3% +24.4% 4704 ± 2% sched_debug.cpu.sched_goidle.avg
11805 ± 16% +56.1% 18427 ± 5% sched_debug.cpu.sched_goidle.max
3254 ± 5% +55.0% 5045 ± 7% sched_debug.cpu.sched_goidle.stddev
3681 ± 3% +24.4% 4580 ± 2% sched_debug.cpu.ttwu_count.avg
314.38 ± 3% -27.9% 226.78 ± 9% sched_debug.cpu.ttwu_local.min
2.55 ± 26% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.local_apic_timer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
1.94 ± 23% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__tick_nohz_idle_enter.tick_nohz_irq_exit.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt
9.41 ± 10% -100.0% 0.00 ± -1% perf-profile.cycles-pp.apic_timer_interrupt.cpuidle_enter.call_cpuidle.cpu_startup_entry.start_secondary
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.call_console_drivers.constprop.23.console_unlock.vprintk_emit.vprintk_default.printk
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.console_unlock.vprintk_emit.vprintk_default.printk.perf_duration_warn
2.31 ± 10% +162.8% 6.08 ± 52% perf-profile.cycles-pp.cpuidle_enter_state.cpuidle_enter.call_cpuidle.cpu_startup_entry.rest_init
81.21 ± 1% +15.0% 93.40 ± 3% perf-profile.cycles-pp.cpuidle_enter_state.cpuidle_enter.call_cpuidle.cpu_startup_entry.start_secondary
1.12 ± 17% -100.0% 0.00 ± -1% perf-profile.cycles-pp.cpuidle_select.cpu_startup_entry.start_secondary
3.33 ± 21% -100.0% 0.00 ± -1% perf-profile.cycles-pp.hrtimer_interrupt.local_apic_timer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter
81.30 ± 1% -98.7% 1.07 ± 16% perf-profile.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.call_cpuidle.cpu_startup_entry
0.92 ± 16% -100.0% 0.00 ± -1% perf-profile.cycles-pp.io_serial_in.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write
1.98 ± 8% -100.0% 0.00 ± -1% perf-profile.cycles-pp.irq_enter.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter.call_cpuidle
2.65 ± 11% -100.0% 0.00 ± -1% perf-profile.cycles-pp.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter.call_cpuidle
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt.cpuidle_enter.call_cpuidle
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.irq_work_run_list.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt.cpuidle_enter
3.52 ± 21% -100.0% 0.00 ± -1% perf-profile.cycles-pp.local_apic_timer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter.call_cpuidle
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.perf_duration_warn.irq_work_run_list.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt
1.02 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.local_apic_timer_interrupt.smp_apic_timer_interrupt
0.54 ±173% +18227.6% 98.05 ± 0% perf-profile.cycles-pp.poll_idle.cpuidle_enter_state.cpuidle_enter.call_cpuidle.cpu_startup_entry
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.printk.perf_duration_warn.irq_work_run_list.irq_work_run.smp_irq_work_interrupt
1.29 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.univ8250_console_write.call_console_drivers.constprop.23
1.29 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.serial8250_console_write.univ8250_console_write.call_console_drivers.constprop.23.console_unlock.vprintk_emit
9.54 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter.call_cpuidle.cpu_startup_entry
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.smp_irq_work_interrupt.irq_work_interrupt.cpuidle_enter.call_cpuidle.cpu_startup_entry
1.24 ± 26% -100.0% 0.00 ± -1% perf-profile.cycles-pp.tick_irq_enter.irq_enter.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter
2.03 ± 22% -100.0% 0.00 ± -1% perf-profile.cycles-pp.tick_nohz_irq_exit.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter
1.50 ± 25% -100.0% 0.00 ± -1% perf-profile.cycles-pp.tick_nohz_stop_sched_tick.__tick_nohz_idle_enter.tick_nohz_irq_exit.irq_exit.smp_apic_timer_interrupt
1.29 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.uart_console_write.serial8250_console_write.univ8250_console_write.call_console_drivers.constprop.23.console_unlock
1.29 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.univ8250_console_write.call_console_drivers.constprop.23.console_unlock.vprintk_emit.vprintk_default
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.vprintk_default.printk.perf_duration_warn.irq_work_run_list.irq_work_run
1.40 ± 12% -100.0% 0.00 ± -1% perf-profile.cycles-pp.vprintk_emit.vprintk_default.printk.perf_duration_warn.irq_work_run_list
1.26 ± 14% -100.0% 0.00 ± -1% perf-profile.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.univ8250_console_write
unixbench.score
820 *+*--*-*-*--*-*-*--*-*-*--*-*-*--*-*-*--*-*-*--*-*-*--*-*-*--*--------+
| |
800 ++ |
| |
780 ++ |
| |
760 ++ |
| |
740 ++ |
| |
720 ++ |
| |
700 ++ |
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
680 ++--------------------------------------------------------------------+
[*] 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.
Thanks,
Xiaolong
View attachment "config-4.7.0-rc3-00007-g8c82d5a" of type "text/plain" (150917 bytes)
View attachment "job.yaml" of type "text/plain" (3515 bytes)
View attachment "reproduce" of type "text/plain" (1549 bytes)
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