* [lkp] [x86/build] b2c51106c75: -18.1% will-it-scale.per_process_ops
@ 2015-08-01 5:17 kernel test robot
2015-08-05 8:38 ` Ingo Molnar
0 siblings, 1 reply; 4+ messages in thread
From: kernel test robot @ 2015-08-01 5:17 UTC (permalink / raw)
To: Andy Lutomirski; +Cc: lkp, LKML, Ingo Molnar
[-- Attachment #1: Type: text/plain, Size: 6227 bytes --]
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/asm
commit b2c51106c7581866c37ffc77c5d739f3d4b7cbc9 ("x86/build: Fix detection of GCC -mpreferred-stack-boundary support")
=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/test:
wsm/will-it-scale/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/readseek2
commit:
f2a50f8b7da45ff2de93a71393e715a2ab9f3b68
b2c51106c7581866c37ffc77c5d739f3d4b7cbc9
f2a50f8b7da45ff2 b2c51106c7581866c37ffc77c5
---------------- --------------------------
%stddev %change %stddev
\ | \
879002 ± 0% -18.1% 720270 ± 7% will-it-scale.per_process_ops
0.02 ± 0% +34.5% 0.02 ± 7% will-it-scale.scalability
26153173 ± 0% +7.0% 27977076 ± 0% will-it-scale.time.voluntary_context_switches
15.70 ± 2% +14.5% 17.98 ± 0% time.user_time
370683 ± 0% +6.2% 393491 ± 0% vmstat.system.cs
830343 ± 56% -54.0% 382128 ± 39% cpuidle.C1E-NHM.time
788.25 ± 14% -21.7% 617.25 ± 16% cpuidle.C1E-NHM.usage
3947 ± 2% +10.6% 4363 ± 3% slabinfo.kmalloc-192.active_objs
3947 ± 2% +10.6% 4363 ± 3% slabinfo.kmalloc-192.num_objs
1082762 ±162% -100.0% 0.00 ± -1% latency_stats.avg.nfs_wait_on_request.nfs_updatepage.nfs_write_end.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.nfs_file_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
1082762 ±162% -100.0% 0.00 ± -1% latency_stats.max.nfs_wait_on_request.nfs_updatepage.nfs_write_end.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.nfs_file_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
1082762 ±162% -100.0% 0.00 ± -1% latency_stats.sum.nfs_wait_on_request.nfs_updatepage.nfs_write_end.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.nfs_file_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
2.58 ± 8% +19.5% 3.09 ± 3% perf-profile.cpu-cycles._raw_spin_lock_irqsave.finish_wait.__wait_on_bit_lock.__lock_page.find_lock_entry
7.02 ± 3% +9.2% 7.67 ± 2% perf-profile.cpu-cycles._raw_spin_lock_irqsave.prepare_to_wait_exclusive.__wait_on_bit_lock.__lock_page.find_lock_entry
3.07 ± 2% +14.8% 3.53 ± 3% perf-profile.cpu-cycles.finish_wait.__wait_on_bit_lock.__lock_page.find_lock_entry.shmem_getpage_gfp
3.05 ± 5% -8.4% 2.79 ± 4% perf-profile.cpu-cycles.hrtimer_start_range_ns.tick_nohz_stop_sched_tick.__tick_nohz_idle_enter.tick_nohz_idle_enter.cpu_startup_entry
0.98 ± 3% -25.1% 0.74 ± 7% perf-profile.cpu-cycles.is_ftrace_trampoline.print_context_stack.dump_trace.save_stack_trace_tsk.__account_scheduler_latency
1.82 ± 18% +46.6% 2.67 ± 3% perf-profile.cpu-cycles.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.finish_wait.__wait_on_bit_lock.__lock_page
8.05 ± 3% +9.5% 8.82 ± 3% perf-profile.cpu-cycles.prepare_to_wait_exclusive.__wait_on_bit_lock.__lock_page.find_lock_entry.shmem_getpage_gfp
7.75 ± 34% -64.5% 2.75 ± 64% sched_debug.cfs_rq[2]:/.nr_spread_over
1135 ± 20% -43.6% 640.75 ± 49% sched_debug.cfs_rq[3]:/.blocked_load_avg
1215 ± 21% -43.1% 691.50 ± 46% sched_debug.cfs_rq[3]:/.tg_load_contrib
38.50 ± 21% +129.9% 88.50 ± 36% sched_debug.cfs_rq[4]:/.load
26.00 ± 20% +98.1% 51.50 ± 46% sched_debug.cfs_rq[4]:/.runnable_load_avg
128.25 ± 18% +227.5% 420.00 ± 43% sched_debug.cfs_rq[4]:/.utilization_load_avg
1015 ± 78% +101.1% 2042 ± 25% sched_debug.cfs_rq[6]:/.blocked_load_avg
1069 ± 72% +100.2% 2140 ± 23% sched_debug.cfs_rq[6]:/.tg_load_contrib
88.75 ± 14% -47.3% 46.75 ± 36% sched_debug.cfs_rq[9]:/.load
59.25 ± 23% -41.4% 34.75 ± 34% sched_debug.cfs_rq[9]:/.runnable_load_avg
315.50 ± 45% -64.6% 111.67 ± 1% sched_debug.cfs_rq[9]:/.utilization_load_avg
2246758 ± 7% +87.6% 4213925 ± 65% sched_debug.cpu#0.nr_switches
2249376 ± 7% +87.4% 4215969 ± 65% sched_debug.cpu#0.sched_count
1121438 ± 7% +81.0% 2030313 ± 61% sched_debug.cpu#0.sched_goidle
1151160 ± 7% +86.5% 2146608 ± 64% sched_debug.cpu#0.ttwu_count
33.75 ± 15% -22.2% 26.25 ± 6% sched_debug.cpu#1.cpu_load[3]
33.25 ± 10% -18.0% 27.25 ± 7% sched_debug.cpu#1.cpu_load[4]
40.00 ± 18% +24.4% 49.75 ± 18% sched_debug.cpu#10.cpu_load[2]
39.25 ± 14% +22.3% 48.00 ± 10% sched_debug.cpu#10.cpu_load[3]
39.50 ± 15% +20.3% 47.50 ± 6% sched_debug.cpu#10.cpu_load[4]
5269004 ± 1% +27.8% 6731790 ± 30% sched_debug.cpu#10.nr_switches
5273193 ± 1% +27.8% 6736526 ± 30% sched_debug.cpu#10.sched_count
2633974 ± 1% +27.8% 3365271 ± 30% sched_debug.cpu#10.sched_goidle
2644149 ± 1% +26.9% 3356318 ± 30% sched_debug.cpu#10.ttwu_count
30.75 ± 15% +66.7% 51.25 ± 31% sched_debug.cpu#11.cpu_load[1]
5116609 ± 4% +34.5% 6884238 ± 33% sched_debug.cpu#9.nr_switches
5120531 ± 4% +34.5% 6889156 ± 33% sched_debug.cpu#9.sched_count
2557822 ± 4% +34.5% 3441428 ± 33% sched_debug.cpu#9.sched_goidle
0.00 ±141% +4.2e+05% 4.76 ±173% sched_debug.rt_rq[10]:/.rt_time
wsm: Westmere
Memory: 6G
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
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,
Ying Huang
[-- Attachment #2: job.yaml --]
[-- Type: text/plain, Size: 3216 bytes --]
---
LKP_SERVER: inn
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
testcase: will-it-scale
default-monitors:
wait: activate-monitor
kmsg:
uptime:
iostat:
vmstat:
numa-numastat:
numa-vmstat:
numa-meminfo:
proc-vmstat:
proc-stat:
interval: 10
meminfo:
slabinfo:
interrupts:
lock_stat:
latency_stats:
softirqs:
bdi_dev_mapping:
diskstats:
nfsstat:
cpuidle:
cpufreq-stats:
turbostat:
pmeter:
sched_debug:
interval: 60
cpufreq_governor: performance
default-watchdogs:
oom-killer:
watchdog:
commit: 11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b
model: Westmere
memory: 6G
nr_hdd_partitions: 1
hdd_partitions: ata-ATAPI_iHES208_2_3782208017_250915404
swap_partitions:
rootfs_partition:
netconsole_port: 6667
category: benchmark
perf-profile:
freq: 800
will-it-scale:
test: readseek2
queue: cyclic
testbox: wsm
tbox_group: wsm
kconfig: x86_64-rhel
enqueue_time: 2015-07-28 04:08:48.371752899 +08:00
user: lkp
compiler: gcc-4.9
head_commit: 11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b
base_commit: cbfe8fa6cd672011c755c3cd85c9ffd4e2d10a6f
branch: linux-devel/devel-hourly-2015072818
kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b/vmlinuz-4.2.0-rc4-02469-g11b9de4"
rootfs: debian-x86_64-2015-02-07.cgz
result_root: "/result/will-it-scale/performance-readseek2/wsm/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b/0"
job_file: "/lkp/scheduled/wsm/cyclic_will-it-scale-performance-readseek2-x86_64-rhel-CYCLIC_HEAD-11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b-20150728-22560-192715z-0.yaml"
dequeue_time: 2015-07-29 00:56:27.676781673 +08:00
nr_cpu: "$(nproc)"
max_uptime: 1500
initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz"
bootloader_append:
- root=/dev/ram0
- user=lkp
- job=/lkp/scheduled/wsm/cyclic_will-it-scale-performance-readseek2-x86_64-rhel-CYCLIC_HEAD-11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b-20150728-22560-192715z-0.yaml
- ARCH=x86_64
- kconfig=x86_64-rhel
- branch=linux-devel/devel-hourly-2015072818
- commit=11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b
- BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b/vmlinuz-4.2.0-rc4-02469-g11b9de4
- max_uptime=1500
- RESULT_ROOT=/result/will-it-scale/performance-readseek2/wsm/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b/0
- LKP_SERVER=inn
- |2-
earlyprintk=ttyS0,115200 systemd.log_level=err
debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100
panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0
console=ttyS0,115200 console=tty0 vga=normal
rw
lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz"
modules_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/11b9de4b33595f8168c4a8fa2bff3ca4c9b38c7b/modules.cgz"
bm_initrd: "/osimage/deps/debian-x86_64-2015-02-07.cgz/lkp.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/run-ipconfig.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/turbostat.cgz,/lkp/benchmarks/turbostat.cgz,/lkp/benchmarks/will-it-scale.cgz"
job_state: finished
loadavg: 9.93 5.11 2.06 1/186 4844
start_time: '1438102760'
end_time: '1438103064'
version: "/lkp/lkp/.src-20150728-100132"
[-- Attachment #3: reproduce --]
[-- Type: text/plain, Size: 918 bytes --]
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu10/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu11/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu7/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu8/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu9/cpufreq/scaling_governor
./runtest.py readseek2 32 both 1 6 9 12
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [lkp] [x86/build] b2c51106c75: -18.1% will-it-scale.per_process_ops
2015-08-01 5:17 [lkp] [x86/build] b2c51106c75: -18.1% will-it-scale.per_process_ops kernel test robot
@ 2015-08-05 8:38 ` Ingo Molnar
2015-08-10 20:39 ` Andy Lutomirski
2015-09-02 2:40 ` Huang Ying
0 siblings, 2 replies; 4+ messages in thread
From: Ingo Molnar @ 2015-08-05 8:38 UTC (permalink / raw)
To: kernel test robot
Cc: Andy Lutomirski, lkp, LKML, Peter Zijlstra, Thomas Gleixner,
Denys Vlasenko
* kernel test robot <ying.huang@intel.com> wrote:
> FYI, we noticed the below changes on
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/asm
> commit b2c51106c7581866c37ffc77c5d739f3d4b7cbc9 ("x86/build: Fix detection of GCC -mpreferred-stack-boundary support")
Does the performance regression go away reproducibly if you do:
git revert b2c51106c7581866c37ffc77c5d739f3d4b7cbc9
?
Thanks,
Ingo
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [lkp] [x86/build] b2c51106c75: -18.1% will-it-scale.per_process_ops
2015-08-05 8:38 ` Ingo Molnar
@ 2015-08-10 20:39 ` Andy Lutomirski
2015-09-02 2:40 ` Huang Ying
1 sibling, 0 replies; 4+ messages in thread
From: Andy Lutomirski @ 2015-08-10 20:39 UTC (permalink / raw)
To: Ingo Molnar
Cc: kernel test robot, Andy Lutomirski, LKP, LKML, Peter Zijlstra,
Thomas Gleixner, Denys Vlasenko
On Wed, Aug 5, 2015 at 1:38 AM, Ingo Molnar <mingo@kernel.org> wrote:
>
> * kernel test robot <ying.huang@intel.com> wrote:
>
>> FYI, we noticed the below changes on
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/asm
>> commit b2c51106c7581866c37ffc77c5d739f3d4b7cbc9 ("x86/build: Fix detection of GCC -mpreferred-stack-boundary support")
>
> Does the performance regression go away reproducibly if you do:
>
> git revert b2c51106c7581866c37ffc77c5d739f3d4b7cbc9
>
> ?
FWIW, I spot-checked the generated code. All I saw were the deletion
of some dummy subtraction from rsp to align the stack for children,
changes of stack frame offsets, and a couple instances in which
instructions got reordered.
--Andy
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [lkp] [x86/build] b2c51106c75: -18.1% will-it-scale.per_process_ops
2015-08-05 8:38 ` Ingo Molnar
2015-08-10 20:39 ` Andy Lutomirski
@ 2015-09-02 2:40 ` Huang Ying
1 sibling, 0 replies; 4+ messages in thread
From: Huang Ying @ 2015-09-02 2:40 UTC (permalink / raw)
To: Ingo Molnar
Cc: Andy Lutomirski, lkp, LKML, Peter Zijlstra, Thomas Gleixner,
Denys Vlasenko
On Wed, 2015-08-05 at 10:38 +0200, Ingo Molnar wrote:
> * kernel test robot <ying.huang@intel.com> wrote:
>
> > FYI, we noticed the below changes on
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/asm
> > commit b2c51106c7581866c37ffc77c5d739f3d4b7cbc9 ("x86/build: Fix detection of GCC -mpreferred-stack-boundary support")
>
> Does the performance regression go away reproducibly if you do:
>
> git revert b2c51106c7581866c37ffc77c5d739f3d4b7cbc9
>
> ?
Sorry for reply so late!
Revert the commit will restore part of the performance, as below.
parent commit: f2a50f8b7da45ff2de93a71393e715a2ab9f3b68
the commit: b2c51106c7581866c37ffc77c5d739f3d4b7cbc9
revert commit: 987d12601a4a82cc2f2151b1be704723eb84cb9d
=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/test:
wsm/will-it-scale/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/readseek2
commit:
f2a50f8b7da45ff2de93a71393e715a2ab9f3b68
b2c51106c7581866c37ffc77c5d739f3d4b7cbc9
987d12601a4a82cc2f2151b1be704723eb84cb9d
f2a50f8b7da45ff2 b2c51106c7581866c37ffc77c5 987d12601a4a82cc2f2151b1be
---------------- -------------------------- --------------------------
%stddev %change %stddev %change %stddev
\ | \ | \
879002 ± 0% -18.1% 720270 ± 7% -3.6% 847011 ± 2% will-it-scale.per_process_ops
0.02 ± 0% +34.5% 0.02 ± 7% +5.6% 0.02 ± 2% will-it-scale.scalability
11144 ± 0% +0.1% 11156 ± 0% +10.6% 12320 ± 0% will-it-scale.time.minor_page_faults
769.30 ± 0% -0.9% 762.15 ± 0% +1.1% 777.42 ± 0% will-it-scale.time.system_time
26153173 ± 0% +7.0% 27977076 ± 0% +3.5% 27078124 ± 0% will-it-scale.time.voluntary_context_switches
2964 ± 2% +1.4% 3004 ± 1% -51.9% 1426 ± 2% proc-vmstat.pgactivate
0.06 ± 27% +154.5% 0.14 ± 44% +122.7% 0.12 ± 24% turbostat.CPU%c3
370683 ± 0% +6.2% 393491 ± 0% +2.4% 379575 ± 0% vmstat.system.cs
11144 ± 0% +0.1% 11156 ± 0% +10.6% 12320 ± 0% time.minor_page_faults
15.70 ± 2% +14.5% 17.98 ± 0% +1.5% 15.94 ± 1% time.user_time
830343 ± 56% -54.0% 382128 ± 39% -22.3% 645308 ± 65% cpuidle.C1E-NHM.time
788.25 ± 14% -21.7% 617.25 ± 16% -12.3% 691.00 ± 3% cpuidle.C1E-NHM.usage
2489132 ± 20% +79.3% 4464147 ± 33% +78.4% 4440574 ± 21% cpuidle.C3-NHM.time
1082762 ±162% -100.0% 0.00 ± -1% +189.3% 3132030 ±110% latency_stats.avg.nfs_wait_on_request.nfs_updatepage.nfs_write_end.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.nfs_file_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
102189 ± 2% -2.1% 100087 ± 5% -32.9% 68568 ± 2% latency_stats.hits.pipe_wait.pipe_read.__vfs_read.vfs_read.SyS_read.entry_SYSCALL_64_fastpath
1082762 ±162% -100.0% 0.00 ± -1% +289.6% 4217977 ±109% latency_stats.max.nfs_wait_on_request.nfs_updatepage.nfs_write_end.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.nfs_file_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
1082762 ±162% -100.0% 0.00 ± -1% +478.5% 6264061 ±110% latency_stats.sum.nfs_wait_on_request.nfs_updatepage.nfs_write_end.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.nfs_file_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
5.10 ± 2% -8.0% 4.69 ± 1% +13.0% 5.76 ± 1% perf-profile.cpu-cycles.__kernel_text_address.print_context_stack.dump_trace.save_stack_trace_tsk.__account_scheduler_latency
2.58 ± 8% +19.5% 3.09 ± 3% -1.8% 2.54 ± 11% perf-profile.cpu-cycles._raw_spin_lock_irqsave.finish_wait.__wait_on_bit_lock.__lock_page.find_lock_entry
7.02 ± 3% +9.2% 7.67 ± 2% +7.1% 7.52 ± 3% perf-profile.cpu-cycles._raw_spin_lock_irqsave.prepare_to_wait_exclusive.__wait_on_bit_lock.__lock_page.find_lock_entry
3.07 ± 2% +14.8% 3.53 ± 3% -1.4% 3.03 ± 5% perf-profile.cpu-cycles.finish_wait.__wait_on_bit_lock.__lock_page.find_lock_entry.shmem_getpage_gfp
3.05 ± 5% -8.4% 2.79 ± 4% -5.2% 2.90 ± 5% perf-profile.cpu-cycles.hrtimer_start_range_ns.tick_nohz_stop_sched_tick.__tick_nohz_idle_enter.tick_nohz_idle_enter.cpu_startup_entry
0.89 ± 5% -7.6% 0.82 ± 3% +16.3% 1.03 ± 5% perf-profile.cpu-cycles.is_ftrace_trampoline.__kernel_text_address.print_context_stack.dump_trace.save_stack_trace_tsk
0.98 ± 3% -25.1% 0.74 ± 7% -16.8% 0.82 ± 2% perf-profile.cpu-cycles.is_ftrace_trampoline.print_context_stack.dump_trace.save_stack_trace_tsk.__account_scheduler_latency
1.58 ± 3% -5.2% 1.50 ± 2% +44.2% 2.28 ± 1% perf-profile.cpu-cycles.is_module_text_address.__kernel_text_address.print_context_stack.dump_trace.save_stack_trace_tsk
1.82 ± 18% +46.6% 2.67 ± 3% -32.6% 1.23 ± 56% perf-profile.cpu-cycles.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.finish_wait.__wait_on_bit_lock.__lock_page
8.05 ± 3% +9.5% 8.82 ± 3% +5.4% 8.49 ± 2% perf-profile.cpu-cycles.prepare_to_wait_exclusive.__wait_on_bit_lock.__lock_page.find_lock_entry.shmem_getpage_gfp
1.16 ± 2% +6.9% 1.25 ± 5% +11.4% 1.30 ± 5% perf-profile.cpu-cycles.put_page.shmem_file_read_iter.__vfs_read.vfs_read.sys_read
11102 ± 1% +0.0% 11102 ± 1% -95.8% 468.00 ± 0% slabinfo.Acpi-ParseExt.active_objs
198.25 ± 1% +0.0% 198.25 ± 1% -93.9% 12.00 ± 0% slabinfo.Acpi-ParseExt.active_slabs
11102 ± 1% +0.0% 11102 ± 1% -95.8% 468.00 ± 0% slabinfo.Acpi-ParseExt.num_objs
198.25 ± 1% +0.0% 198.25 ± 1% -93.9% 12.00 ± 0% slabinfo.Acpi-ParseExt.num_slabs
341.25 ± 14% +2.9% 351.00 ± 11% -100.0% 0.00 ± -1% slabinfo.blkdev_ioc.active_objs
341.25 ± 14% +2.9% 351.00 ± 11% -100.0% 0.00 ± -1% slabinfo.blkdev_ioc.num_objs
438.00 ± 16% -8.3% 401.50 ± 20% -100.0% 0.00 ± -1% slabinfo.file_lock_ctx.active_objs
438.00 ± 16% -8.3% 401.50 ± 20% -100.0% 0.00 ± -1% slabinfo.file_lock_ctx.num_objs
4398 ± 1% +1.4% 4462 ± 0% -14.5% 3761 ± 2% slabinfo.ftrace_event_field.active_objs
4398 ± 1% +1.4% 4462 ± 0% -14.5% 3761 ± 2% slabinfo.ftrace_event_field.num_objs
3947 ± 2% +10.6% 4363 ± 3% +107.1% 8175 ± 2% slabinfo.kmalloc-192.active_objs
93.00 ± 2% +10.8% 103.00 ± 3% +120.2% 204.75 ± 2% slabinfo.kmalloc-192.active_slabs
3947 ± 2% +10.6% 4363 ± 3% +118.4% 8620 ± 2% slabinfo.kmalloc-192.num_objs
93.00 ± 2% +10.8% 103.00 ± 3% +120.2% 204.75 ± 2% slabinfo.kmalloc-192.num_slabs
1794 ± 0% +3.2% 1851 ± 2% +12.2% 2012 ± 3% slabinfo.trace_event_file.active_objs
1794 ± 0% +3.2% 1851 ± 2% +12.2% 2012 ± 3% slabinfo.trace_event_file.num_objs
7065 ± 7% -5.4% 6684 ± 8% -100.0% 0.00 ± -1% slabinfo.vm_area_struct.active_objs
160.50 ± 7% -5.5% 151.75 ± 8% -100.0% 0.00 ± -1% slabinfo.vm_area_struct.active_slabs
7091 ± 7% -5.6% 6694 ± 8% -100.0% 0.00 ± -1% slabinfo.vm_area_struct.num_objs
160.50 ± 7% -5.5% 151.75 ± 8% -100.0% 0.00 ± -1% slabinfo.vm_area_struct.num_slabs
857.50 ± 29% +75.7% 1506 ± 78% +157.6% 2209 ± 33% sched_debug.cfs_rq[11]:/.blocked_load_avg
52.75 ± 29% -29.4% 37.25 ± 60% +103.3% 107.25 ± 43% sched_debug.cfs_rq[11]:/.load
914.50 ± 29% +69.9% 1553 ± 77% +155.6% 2337 ± 32% sched_debug.cfs_rq[11]:/.tg_load_contrib
7.75 ± 34% -64.5% 2.75 ± 64% -12.9% 6.75 ±115% sched_debug.cfs_rq[2]:/.nr_spread_over
1135 ± 20% -43.6% 640.75 ± 49% -18.8% 922.50 ± 51% sched_debug.cfs_rq[3]:/.blocked_load_avg
1215 ± 21% -43.1% 691.50 ± 46% -21.3% 956.25 ± 50% sched_debug.cfs_rq[3]:/.tg_load_contrib
38.50 ± 21% +129.9% 88.50 ± 36% +96.1% 75.50 ± 56% sched_debug.cfs_rq[4]:/.load
26.00 ± 20% +98.1% 51.50 ± 46% +142.3% 63.00 ± 53% sched_debug.cfs_rq[4]:/.runnable_load_avg
128.25 ± 18% +227.5% 420.00 ± 43% +152.4% 323.75 ± 68% sched_debug.cfs_rq[4]:/.utilization_load_avg
28320 ± 12% -6.3% 26545 ± 11% -19.4% 22813 ± 13% sched_debug.cfs_rq[6]:/.avg->runnable_avg_sum
1015 ± 78% +101.1% 2042 ± 25% +64.4% 1669 ± 73% sched_debug.cfs_rq[6]:/.blocked_load_avg
1069 ± 72% +100.2% 2140 ± 23% +61.2% 1722 ± 70% sched_debug.cfs_rq[6]:/.tg_load_contrib
619.25 ± 12% -6.3% 580.25 ± 11% -19.2% 500.25 ± 13% sched_debug.cfs_rq[6]:/.tg_runnable_contrib
88.75 ± 14% -47.3% 46.75 ± 36% -24.5% 67.00 ± 11% sched_debug.cfs_rq[9]:/.load
59.25 ± 23% -41.4% 34.75 ± 34% -6.3% 55.50 ± 12% sched_debug.cfs_rq[9]:/.runnable_load_avg
315.50 ± 45% -64.6% 111.67 ± 1% -12.1% 277.25 ± 3% sched_debug.cfs_rq[9]:/.utilization_load_avg
2246758 ± 7% +87.6% 4213925 ± 65% -2.2% 2197475 ± 4% sched_debug.cpu#0.nr_switches
2249376 ± 7% +87.4% 4215969 ± 65% -2.2% 2199216 ± 4% sched_debug.cpu#0.sched_count
1121438 ± 7% +81.0% 2030313 ± 61% -2.2% 1096479 ± 4% sched_debug.cpu#0.sched_goidle
1151160 ± 7% +86.5% 2146608 ± 64% -1.9% 1129264 ± 3% sched_debug.cpu#0.ttwu_count
33.75 ± 15% -22.2% 26.25 ± 6% -8.9% 30.75 ± 10% sched_debug.cpu#1.cpu_load[3]
33.25 ± 10% -18.0% 27.25 ± 7% -3.8% 32.00 ± 11% sched_debug.cpu#1.cpu_load[4]
41.75 ± 29% +23.4% 51.50 ± 33% +53.9% 64.25 ± 16% sched_debug.cpu#10.cpu_load[1]
40.00 ± 18% +24.4% 49.75 ± 18% +49.4% 59.75 ± 8% sched_debug.cpu#10.cpu_load[2]
39.25 ± 14% +22.3% 48.00 ± 10% +38.9% 54.50 ± 7% sched_debug.cpu#10.cpu_load[3]
39.50 ± 15% +20.3% 47.50 ± 6% +30.4% 51.50 ± 7% sched_debug.cpu#10.cpu_load[4]
5269004 ± 1% +27.8% 6731790 ± 30% +1.4% 5342560 ± 2% sched_debug.cpu#10.nr_switches
5273193 ± 1% +27.8% 6736526 ± 30% +1.4% 5345791 ± 2% sched_debug.cpu#10.sched_count
2633974 ± 1% +27.8% 3365271 ± 30% +1.4% 2670901 ± 2% sched_debug.cpu#10.sched_goidle
2644149 ± 1% +26.9% 3356318 ± 30% +1.9% 2693295 ± 1% sched_debug.cpu#10.ttwu_count
26.50 ± 37% +116.0% 57.25 ± 48% +109.4% 55.50 ± 29% sched_debug.cpu#11.cpu_load[0]
30.75 ± 15% +66.7% 51.25 ± 31% +65.9% 51.00 ± 21% sched_debug.cpu#11.cpu_load[1]
33.50 ± 10% +37.3% 46.00 ± 22% +39.6% 46.75 ± 17% sched_debug.cpu#11.cpu_load[2]
37.00 ± 11% +15.5% 42.75 ± 19% +29.7% 48.00 ± 11% sched_debug.cpu#11.cpu_load[4]
508300 ± 11% -0.6% 505024 ± 1% +18.1% 600291 ± 7% sched_debug.cpu#4.avg_idle
454696 ± 9% -5.9% 427894 ± 25% +21.8% 553608 ± 4% sched_debug.cpu#5.avg_idle
66.00 ± 27% +11.0% 73.25 ± 37% -46.6% 35.25 ± 22% sched_debug.cpu#6.cpu_load[0]
62.00 ± 36% +12.5% 69.75 ± 45% -41.5% 36.25 ± 11% sched_debug.cpu#6.cpu_load[1]
247681 ± 19% +21.0% 299747 ± 10% +28.7% 318764 ± 17% sched_debug.cpu#8.avg_idle
5116609 ± 4% +34.5% 6884238 ± 33% +55.2% 7942254 ± 34% sched_debug.cpu#9.nr_switches
5120531 ± 4% +34.5% 6889156 ± 33% +55.2% 7945270 ± 34% sched_debug.cpu#9.sched_count
2557822 ± 4% +34.5% 3441428 ± 33% +55.2% 3970337 ± 34% sched_debug.cpu#9.sched_goidle
2565307 ± 4% +32.9% 3410042 ± 33% +54.0% 3949696 ± 34% sched_debug.cpu#9.ttwu_count
0.00 ±141% +4.2e+05% 4.76 ±173% +47.7% 0.00 ±-59671% sched_debug.rt_rq[10]:/.rt_time
155259 ± 0% +0.0% 155259 ± 0% -42.2% 89723 ± 0% sched_debug.sysctl_sched.sysctl_sched_features
Best Regards,
Huang, Ying
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2015-08-01 5:17 [lkp] [x86/build] b2c51106c75: -18.1% will-it-scale.per_process_ops kernel test robot
2015-08-05 8:38 ` Ingo Molnar
2015-08-10 20:39 ` Andy Lutomirski
2015-09-02 2:40 ` Huang Ying
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