Re: [LKP] [sched] a15b12ac36a: -46.9% time.voluntary_context_switches +1.5% will-it-scale.per_process_ops
Hi, Kirill,
Sorry for late.
On Tue, 2014-12-23 at 11:57 +0300, Kirill Tkhai wrote:
> Hi, Huang,
>
> what do these digits mean? What test does?
>
> 23.12.2014, 08:16, "Huang Ying" :
> > FYI, we noticed the below changes on
> >
> > commit a15b12ac36ad4e7b856a4ae54937ae26a51aebad ("sched: Do not stop cpu in
> > set_cpus_allowed_ptr() if task is not running")
> >
> > testbox/testcase/testparams: lkp-g5/will-it-scale/performance-lock1
> >
> > 1ba93d42727c4400 a15b12ac36ad4e7b856a4ae549
> > --
Above is the good commit and the bad commit.
> > %stddev %change %stddev
> > \ |\
> >1517261 ± 0% +1.5%1539994 ± 0% will-it-scale.per_process_ops
We have basic description of data above, where %stddev is standard
deviation.
What's more do you want?
Best Regards,
Huang, Ying
> >247 ± 30%+131.8%573 ± 49% sched_debug.cpu#61.ttwu_count
> >225 ± 22%+142.8%546 ± 34% sched_debug.cpu#81.ttwu_local
> > 15115 ± 44% +37.3% 20746 ± 40% numa-meminfo.node7.Active
> > 1028 ± 38%+115.3% 2214 ± 36% sched_debug.cpu#16.ttwu_local
> > 2 ± 19%+133.3% 5 ± 43% sched_debug.cpu#89.cpu_load[3]
> > 21 ± 45% +88.2% 40 ± 23%
> > sched_debug.cfs_rq[99]:/.tg_load_contrib
> >414 ± 33% +98.6%823 ± 28% sched_debug.cpu#81.ttwu_count
> > 4 ± 10% +88.2% 8 ± 12%
> > sched_debug.cfs_rq[33]:/.runnable_load_avg
> > 22 ± 26% +80.9% 40 ± 24%
> > sched_debug.cfs_rq[103]:/.tg_load_contrib
> > 7 ± 17% -41.4% 4 ± 25% sched_debug.cfs_rq[41]:/.load
> > 7 ± 17% -37.9% 4 ± 19% sched_debug.cpu#41.load
> > 3 ± 22%+106.7% 7 ± 10%
> > sched_debug.cfs_rq[36]:/.runnable_load_avg
> >174 ± 13% +48.7%259 ± 31% sched_debug.cpu#112.ttwu_count
> > 4 ± 19% +88.9% 8 ± 5%
> > sched_debug.cfs_rq[35]:/.runnable_load_avg
> >260 ± 10% +55.6%405 ± 26%
> > numa-vmstat.node3.nr_anon_pages
> > 1042 ± 10% +56.0% 1626 ± 26% numa-meminfo.node3.AnonPages
> > 26 ± 22% +74.3% 45 ± 16%
> > sched_debug.cfs_rq[65]:/.tg_load_contrib
> > 21 ± 43% +71.3% 37 ± 26%
> > sched_debug.cfs_rq[100]:/.tg_load_contrib
> > 3686 ± 21% +40.2% 5167 ± 19% sched_debug.cpu#16.ttwu_count
> >142 ± 9% +34.4%191 ± 24% sched_debug.cpu#112.ttwu_local
> > 5 ± 18% +69.6% 9 ± 15% sched_debug.cfs_rq[35]:/.load
> > 2 ± 30%+100.0% 5 ± 37%
> > sched_debug.cpu#106.cpu_load[1]
> > 3 ± 23%+100.0% 6 ± 48%
> > sched_debug.cpu#106.cpu_load[2]
> > 5 ± 18% +69.6% 9 ± 15% sched_debug.cpu#35.load
> > 9 ± 20% +48.6% 13 ± 16%
> > sched_debug.cfs_rq[7]:/.runnable_load_avg
> > 1727 ± 15% +43.9% 2484 ± 30% sched_debug.cpu#34.ttwu_local
> > 10 ± 17% -40.5% 6 ± 13% sched_debug.cpu#41.cpu_load[0]
> > 10 ± 14% -29.3% 7 ± 5% sched_debug.cpu#45.cpu_load[4]
> > 10 ± 17% -33.3% 7 ± 10% sched_debug.cpu#41.cpu_load[1]
> > 6121 ± 8% +56.7% 9595 ± 30%
> > sched_debug.cpu#13.sched_goidle
> > 13 ± 8% -25.9% 10 ± 17% sched_debug.cpu#39.cpu_load[2]
> > 12 ± 16% -24.0% 9 ± 15% sched_debug.cpu#37.cpu_load[2]
> >492 ± 17% -21.3%387 ± 24% sched_debug.cpu#46.ttwu_count
> > 3761 ± 11% -23.9% 2863 ± 15% sched_debug.cpu#93.curr->pid
> >570 ± 19% +43.2%816 ± 17% sched_debug.cpu#86.ttwu_count
> > 5279 ± 8% +63.5% 8631 ± 33% sched_debug.cpu#13.ttwu_count
> >377 ± 22% -28.6%269 ± 14% sched_debug.cpu#46.ttwu_local
> > 5396 ± 10% +29.9% 7007 ± 14%
> > sched_debug.cpu#16.sched_goidle
> > 1959 ± 12% +36.9% 2683 ± 15%
> > numa-vmstat.node2.nr_slab_reclaimable
> > 7839 ± 12% +37.0% 10736 ± 15%
> > numa-meminfo.node2.SReclaimable
> > 5 ± 15% +66.7% 8 ± 9% sched_debug.cfs_rq[33]:/.load
> > 5 ± 25% +47.8% 8 ± 10% sched_debug.cfs_rq[37]:/.load
> > 2 ± 0% +87.5% 3 ± 34% sched_debug.cpu#89.cpu_load[4]
> > 5 ± 15% +66.7% 8 ± 9% sched_debug.cpu#33.load
> > 6 ± 23% +41.7% 8 ± 10% sched_debug.cpu#37.load
> > 8 ± 10% -26.5% 6 ± 6% sched_debug.cpu#51.cpu_load[1]
> > 7300 ± 37% +63.6% 11943 ± 16% softirqs.TASKLET
> > 2984 ± 6% +43.1% 4271 ± 23% sched_debug.cpu#20.ttwu_count
> >328 ± 4% +40.5%462 ± 25% sched_debug.cpu#26.ttwu_local
> > 10 ± 7%
Re: [LKP] [sched] a15b12ac36a: -46.9% time.voluntary_context_switches +1.5% will-it-scale.per_process_ops
Hi, Kirill,
Sorry for late.
On Tue, 2014-12-23 at 11:57 +0300, Kirill Tkhai wrote:
Hi, Huang,
what do these digits mean? What test does?
23.12.2014, 08:16, Huang Ying ying.hu...@intel.com:
FYI, we noticed the below changes on
commit a15b12ac36ad4e7b856a4ae54937ae26a51aebad (sched: Do not stop cpu in
set_cpus_allowed_ptr() if task is not running)
testbox/testcase/testparams: lkp-g5/will-it-scale/performance-lock1
1ba93d42727c4400 a15b12ac36ad4e7b856a4ae549
--
Above is the good commit and the bad commit.
%stddev %change %stddev
\ |\
1517261 ± 0% +1.5%1539994 ± 0% will-it-scale.per_process_ops
We have basic description of data above, where %stddev is standard
deviation.
What's more do you want?
Best Regards,
Huang, Ying
247 ± 30%+131.8%573 ± 49% sched_debug.cpu#61.ttwu_count
225 ± 22%+142.8%546 ± 34% sched_debug.cpu#81.ttwu_local
15115 ± 44% +37.3% 20746 ± 40% numa-meminfo.node7.Active
1028 ± 38%+115.3% 2214 ± 36% sched_debug.cpu#16.ttwu_local
2 ± 19%+133.3% 5 ± 43% sched_debug.cpu#89.cpu_load[3]
21 ± 45% +88.2% 40 ± 23%
sched_debug.cfs_rq[99]:/.tg_load_contrib
414 ± 33% +98.6%823 ± 28% sched_debug.cpu#81.ttwu_count
4 ± 10% +88.2% 8 ± 12%
sched_debug.cfs_rq[33]:/.runnable_load_avg
22 ± 26% +80.9% 40 ± 24%
sched_debug.cfs_rq[103]:/.tg_load_contrib
7 ± 17% -41.4% 4 ± 25% sched_debug.cfs_rq[41]:/.load
7 ± 17% -37.9% 4 ± 19% sched_debug.cpu#41.load
3 ± 22%+106.7% 7 ± 10%
sched_debug.cfs_rq[36]:/.runnable_load_avg
174 ± 13% +48.7%259 ± 31% sched_debug.cpu#112.ttwu_count
4 ± 19% +88.9% 8 ± 5%
sched_debug.cfs_rq[35]:/.runnable_load_avg
260 ± 10% +55.6%405 ± 26%
numa-vmstat.node3.nr_anon_pages
1042 ± 10% +56.0% 1626 ± 26% numa-meminfo.node3.AnonPages
26 ± 22% +74.3% 45 ± 16%
sched_debug.cfs_rq[65]:/.tg_load_contrib
21 ± 43% +71.3% 37 ± 26%
sched_debug.cfs_rq[100]:/.tg_load_contrib
3686 ± 21% +40.2% 5167 ± 19% sched_debug.cpu#16.ttwu_count
142 ± 9% +34.4%191 ± 24% sched_debug.cpu#112.ttwu_local
5 ± 18% +69.6% 9 ± 15% sched_debug.cfs_rq[35]:/.load
2 ± 30%+100.0% 5 ± 37%
sched_debug.cpu#106.cpu_load[1]
3 ± 23%+100.0% 6 ± 48%
sched_debug.cpu#106.cpu_load[2]
5 ± 18% +69.6% 9 ± 15% sched_debug.cpu#35.load
9 ± 20% +48.6% 13 ± 16%
sched_debug.cfs_rq[7]:/.runnable_load_avg
1727 ± 15% +43.9% 2484 ± 30% sched_debug.cpu#34.ttwu_local
10 ± 17% -40.5% 6 ± 13% sched_debug.cpu#41.cpu_load[0]
10 ± 14% -29.3% 7 ± 5% sched_debug.cpu#45.cpu_load[4]
10 ± 17% -33.3% 7 ± 10% sched_debug.cpu#41.cpu_load[1]
6121 ± 8% +56.7% 9595 ± 30%
sched_debug.cpu#13.sched_goidle
13 ± 8% -25.9% 10 ± 17% sched_debug.cpu#39.cpu_load[2]
12 ± 16% -24.0% 9 ± 15% sched_debug.cpu#37.cpu_load[2]
492 ± 17% -21.3%387 ± 24% sched_debug.cpu#46.ttwu_count
3761 ± 11% -23.9% 2863 ± 15% sched_debug.cpu#93.curr-pid
570 ± 19% +43.2%816 ± 17% sched_debug.cpu#86.ttwu_count
5279 ± 8% +63.5% 8631 ± 33% sched_debug.cpu#13.ttwu_count
377 ± 22% -28.6%269 ± 14% sched_debug.cpu#46.ttwu_local
5396 ± 10% +29.9% 7007 ± 14%
sched_debug.cpu#16.sched_goidle
1959 ± 12% +36.9% 2683 ± 15%
numa-vmstat.node2.nr_slab_reclaimable
7839 ± 12% +37.0% 10736 ± 15%
numa-meminfo.node2.SReclaimable
5 ± 15% +66.7% 8 ± 9% sched_debug.cfs_rq[33]:/.load
5 ± 25% +47.8% 8 ± 10% sched_debug.cfs_rq[37]:/.load
2 ± 0% +87.5% 3 ± 34% sched_debug.cpu#89.cpu_load[4]
5 ± 15% +66.7% 8 ± 9% sched_debug.cpu#33.load
6 ± 23% +41.7% 8 ± 10% sched_debug.cpu#37.load
8 ± 10% -26.5% 6 ± 6% sched_debug.cpu#51.cpu_load[1]
7300 ± 37% +63.6% 11943 ± 16% softirqs.TASKLET
2984 ± 6% +43.1% 4271 ± 23% sched_debug.cpu#20.ttwu_count
328 ± 4% +40.5%462 ± 25% sched_debug.cpu#26.ttwu_local
10 ± 7% -27.5% 7 ± 5% sched_debug.cpu#43.cpu_load[3]
9 ± 8% -30.8% 6 ± 6% sched_debug.cpu#41.cpu_load[3]
Re: [LKP] [sched] a15b12ac36a: -46.9% time.voluntary_context_switches +1.5% will-it-scale.per_process_ops
Hi, Huang,
what do these digits mean? What test does?
23.12.2014, 08:16, "Huang Ying" :
> FYI, we noticed the below changes on
>
> commit a15b12ac36ad4e7b856a4ae54937ae26a51aebad ("sched: Do not stop cpu in
> set_cpus_allowed_ptr() if task is not running")
>
> testbox/testcase/testparams: lkp-g5/will-it-scale/performance-lock1
>
> 1ba93d42727c4400 a15b12ac36ad4e7b856a4ae549
> --
> %stddev %change %stddev
> \ | \
> 1517261 ± 0% +1.5% 1539994 ± 0% will-it-scale.per_process_ops
> 247 ± 30% +131.8% 573 ± 49% sched_debug.cpu#61.ttwu_count
> 225 ± 22% +142.8% 546 ± 34% sched_debug.cpu#81.ttwu_local
> 15115 ± 44% +37.3% 20746 ± 40% numa-meminfo.node7.Active
> 1028 ± 38% +115.3% 2214 ± 36% sched_debug.cpu#16.ttwu_local
> 2 ± 19% +133.3% 5 ± 43% sched_debug.cpu#89.cpu_load[3]
> 21 ± 45% +88.2% 40 ± 23%
> sched_debug.cfs_rq[99]:/.tg_load_contrib
> 414 ± 33% +98.6% 823 ± 28% sched_debug.cpu#81.ttwu_count
> 4 ± 10% +88.2% 8 ± 12%
> sched_debug.cfs_rq[33]:/.runnable_load_avg
> 22 ± 26% +80.9% 40 ± 24%
> sched_debug.cfs_rq[103]:/.tg_load_contrib
> 7 ± 17% -41.4% 4 ± 25% sched_debug.cfs_rq[41]:/.load
> 7 ± 17% -37.9% 4 ± 19% sched_debug.cpu#41.load
> 3 ± 22% +106.7% 7 ± 10%
> sched_debug.cfs_rq[36]:/.runnable_load_avg
> 174 ± 13% +48.7% 259 ± 31% sched_debug.cpu#112.ttwu_count
> 4 ± 19% +88.9% 8 ± 5%
> sched_debug.cfs_rq[35]:/.runnable_load_avg
> 260 ± 10% +55.6% 405 ± 26% numa-vmstat.node3.nr_anon_pages
> 1042 ± 10% +56.0% 1626 ± 26% numa-meminfo.node3.AnonPages
> 26 ± 22% +74.3% 45 ± 16%
> sched_debug.cfs_rq[65]:/.tg_load_contrib
> 21 ± 43% +71.3% 37 ± 26%
> sched_debug.cfs_rq[100]:/.tg_load_contrib
> 3686 ± 21% +40.2% 5167 ± 19% sched_debug.cpu#16.ttwu_count
> 142 ± 9% +34.4% 191 ± 24% sched_debug.cpu#112.ttwu_local
> 5 ± 18% +69.6% 9 ± 15% sched_debug.cfs_rq[35]:/.load
> 2 ± 30% +100.0% 5 ± 37% sched_debug.cpu#106.cpu_load[1]
> 3 ± 23% +100.0% 6 ± 48% sched_debug.cpu#106.cpu_load[2]
> 5 ± 18% +69.6% 9 ± 15% sched_debug.cpu#35.load
> 9 ± 20% +48.6% 13 ± 16%
> sched_debug.cfs_rq[7]:/.runnable_load_avg
> 1727 ± 15% +43.9% 2484 ± 30% sched_debug.cpu#34.ttwu_local
> 10 ± 17% -40.5% 6 ± 13% sched_debug.cpu#41.cpu_load[0]
> 10 ± 14% -29.3% 7 ± 5% sched_debug.cpu#45.cpu_load[4]
> 10 ± 17% -33.3% 7 ± 10% sched_debug.cpu#41.cpu_load[1]
> 6121 ± 8% +56.7% 9595 ± 30% sched_debug.cpu#13.sched_goidle
> 13 ± 8% -25.9% 10 ± 17% sched_debug.cpu#39.cpu_load[2]
> 12 ± 16% -24.0% 9 ± 15% sched_debug.cpu#37.cpu_load[2]
> 492 ± 17% -21.3% 387 ± 24% sched_debug.cpu#46.ttwu_count
> 3761 ± 11% -23.9% 2863 ± 15% sched_debug.cpu#93.curr->pid
> 570 ± 19% +43.2% 816 ± 17% sched_debug.cpu#86.ttwu_count
> 5279 ± 8% +63.5% 8631 ± 33% sched_debug.cpu#13.ttwu_count
> 377 ± 22% -28.6% 269 ± 14% sched_debug.cpu#46.ttwu_local
> 5396 ± 10% +29.9% 7007 ± 14% sched_debug.cpu#16.sched_goidle
> 1959 ± 12% +36.9% 2683 ± 15%
> numa-vmstat.node2.nr_slab_reclaimable
> 7839 ± 12% +37.0% 10736 ± 15% numa-meminfo.node2.SReclaimable
> 5 ± 15% +66.7% 8 ± 9% sched_debug.cfs_rq[33]:/.load
> 5 ± 25% +47.8% 8 ± 10% sched_debug.cfs_rq[37]:/.load
> 2 ± 0% +87.5% 3 ± 34% sched_debug.cpu#89.cpu_load[4]
> 5 ± 15% +66.7% 8 ± 9% sched_debug.cpu#33.load
> 6 ± 23% +41.7% 8 ± 10% sched_debug.cpu#37.load
> 8 ± 10% -26.5% 6 ± 6% sched_debug.cpu#51.cpu_load[1]
> 7300 ± 37% +63.6% 11943 ± 16% softirqs.TASKLET
> 2984 ± 6% +43.1% 4271 ± 23% sched_debug.cpu#20.ttwu_count
> 328 ± 4% +40.5% 462 ± 25% sched_debug.cpu#26.ttwu_local
> 10 ± 7% -27.5% 7 ± 5% sched_debug.cpu#43.cpu_load[3]
> 9 ± 8% -30.8% 6 ± 6% sched_debug.cpu#41.cpu_load[3]
> 9 ± 8% -27.0% 6 ± 6% sched_debug.cpu#41.cpu_load[4]
> 10 ± 14% -32.5% 6 ± 6% sched_debug.cpu#41.cpu_load[2]
> 16292 ± 6% +42.8% 23260 ± 25% sched_debug.cpu#13.nr_switches
> 14 ± 28% +55.9% 23 ± 8%
Re: [LKP] [sched] a15b12ac36a: -46.9% time.voluntary_context_switches +1.5% will-it-scale.per_process_ops
Hi, Huang, what do these digits mean? What test does? 23.12.2014, 08:16, Huang Ying ying.hu...@intel.com: FYI, we noticed the below changes on commit a15b12ac36ad4e7b856a4ae54937ae26a51aebad (sched: Do not stop cpu in set_cpus_allowed_ptr() if task is not running) testbox/testcase/testparams: lkp-g5/will-it-scale/performance-lock1 1ba93d42727c4400 a15b12ac36ad4e7b856a4ae549 -- %stddev %change %stddev \ | \ 1517261 ± 0% +1.5% 1539994 ± 0% will-it-scale.per_process_ops 247 ± 30% +131.8% 573 ± 49% sched_debug.cpu#61.ttwu_count 225 ± 22% +142.8% 546 ± 34% sched_debug.cpu#81.ttwu_local 15115 ± 44% +37.3% 20746 ± 40% numa-meminfo.node7.Active 1028 ± 38% +115.3% 2214 ± 36% sched_debug.cpu#16.ttwu_local 2 ± 19% +133.3% 5 ± 43% sched_debug.cpu#89.cpu_load[3] 21 ± 45% +88.2% 40 ± 23% sched_debug.cfs_rq[99]:/.tg_load_contrib 414 ± 33% +98.6% 823 ± 28% sched_debug.cpu#81.ttwu_count 4 ± 10% +88.2% 8 ± 12% sched_debug.cfs_rq[33]:/.runnable_load_avg 22 ± 26% +80.9% 40 ± 24% sched_debug.cfs_rq[103]:/.tg_load_contrib 7 ± 17% -41.4% 4 ± 25% sched_debug.cfs_rq[41]:/.load 7 ± 17% -37.9% 4 ± 19% sched_debug.cpu#41.load 3 ± 22% +106.7% 7 ± 10% sched_debug.cfs_rq[36]:/.runnable_load_avg 174 ± 13% +48.7% 259 ± 31% sched_debug.cpu#112.ttwu_count 4 ± 19% +88.9% 8 ± 5% sched_debug.cfs_rq[35]:/.runnable_load_avg 260 ± 10% +55.6% 405 ± 26% numa-vmstat.node3.nr_anon_pages 1042 ± 10% +56.0% 1626 ± 26% numa-meminfo.node3.AnonPages 26 ± 22% +74.3% 45 ± 16% sched_debug.cfs_rq[65]:/.tg_load_contrib 21 ± 43% +71.3% 37 ± 26% sched_debug.cfs_rq[100]:/.tg_load_contrib 3686 ± 21% +40.2% 5167 ± 19% sched_debug.cpu#16.ttwu_count 142 ± 9% +34.4% 191 ± 24% sched_debug.cpu#112.ttwu_local 5 ± 18% +69.6% 9 ± 15% sched_debug.cfs_rq[35]:/.load 2 ± 30% +100.0% 5 ± 37% sched_debug.cpu#106.cpu_load[1] 3 ± 23% +100.0% 6 ± 48% sched_debug.cpu#106.cpu_load[2] 5 ± 18% +69.6% 9 ± 15% sched_debug.cpu#35.load 9 ± 20% +48.6% 13 ± 16% sched_debug.cfs_rq[7]:/.runnable_load_avg 1727 ± 15% +43.9% 2484 ± 30% sched_debug.cpu#34.ttwu_local 10 ± 17% -40.5% 6 ± 13% sched_debug.cpu#41.cpu_load[0] 10 ± 14% -29.3% 7 ± 5% sched_debug.cpu#45.cpu_load[4] 10 ± 17% -33.3% 7 ± 10% sched_debug.cpu#41.cpu_load[1] 6121 ± 8% +56.7% 9595 ± 30% sched_debug.cpu#13.sched_goidle 13 ± 8% -25.9% 10 ± 17% sched_debug.cpu#39.cpu_load[2] 12 ± 16% -24.0% 9 ± 15% sched_debug.cpu#37.cpu_load[2] 492 ± 17% -21.3% 387 ± 24% sched_debug.cpu#46.ttwu_count 3761 ± 11% -23.9% 2863 ± 15% sched_debug.cpu#93.curr-pid 570 ± 19% +43.2% 816 ± 17% sched_debug.cpu#86.ttwu_count 5279 ± 8% +63.5% 8631 ± 33% sched_debug.cpu#13.ttwu_count 377 ± 22% -28.6% 269 ± 14% sched_debug.cpu#46.ttwu_local 5396 ± 10% +29.9% 7007 ± 14% sched_debug.cpu#16.sched_goidle 1959 ± 12% +36.9% 2683 ± 15% numa-vmstat.node2.nr_slab_reclaimable 7839 ± 12% +37.0% 10736 ± 15% numa-meminfo.node2.SReclaimable 5 ± 15% +66.7% 8 ± 9% sched_debug.cfs_rq[33]:/.load 5 ± 25% +47.8% 8 ± 10% sched_debug.cfs_rq[37]:/.load 2 ± 0% +87.5% 3 ± 34% sched_debug.cpu#89.cpu_load[4] 5 ± 15% +66.7% 8 ± 9% sched_debug.cpu#33.load 6 ± 23% +41.7% 8 ± 10% sched_debug.cpu#37.load 8 ± 10% -26.5% 6 ± 6% sched_debug.cpu#51.cpu_load[1] 7300 ± 37% +63.6% 11943 ± 16% softirqs.TASKLET 2984 ± 6% +43.1% 4271 ± 23% sched_debug.cpu#20.ttwu_count 328 ± 4% +40.5% 462 ± 25% sched_debug.cpu#26.ttwu_local 10 ± 7% -27.5% 7 ± 5% sched_debug.cpu#43.cpu_load[3] 9 ± 8% -30.8% 6 ± 6% sched_debug.cpu#41.cpu_load[3] 9 ± 8% -27.0% 6 ± 6% sched_debug.cpu#41.cpu_load[4] 10 ± 14% -32.5% 6 ± 6% sched_debug.cpu#41.cpu_load[2] 16292 ± 6% +42.8% 23260 ± 25% sched_debug.cpu#13.nr_switches 14 ± 28% +55.9% 23 ± 8% sched_debug.cpu#99.cpu_load[0] 5 ± 8% +28.6% 6 ± 12%
[LKP] [sched] a15b12ac36a: -46.9% time.voluntary_context_switches +1.5% will-it-scale.per_process_ops
FYI, we noticed the below changes on
commit a15b12ac36ad4e7b856a4ae54937ae26a51aebad ("sched: Do not stop cpu in
set_cpus_allowed_ptr() if task is not running")
testbox/testcase/testparams: lkp-g5/will-it-scale/performance-lock1
1ba93d42727c4400 a15b12ac36ad4e7b856a4ae549
--
%stddev %change %stddev
\ |\
1517261 ± 0% +1.5%1539994 ± 0% will-it-scale.per_process_ops
247 ± 30%+131.8%573 ± 49% sched_debug.cpu#61.ttwu_count
225 ± 22%+142.8%546 ± 34% sched_debug.cpu#81.ttwu_local
15115 ± 44% +37.3% 20746 ± 40% numa-meminfo.node7.Active
1028 ± 38%+115.3% 2214 ± 36% sched_debug.cpu#16.ttwu_local
2 ± 19%+133.3% 5 ± 43% sched_debug.cpu#89.cpu_load[3]
21 ± 45% +88.2% 40 ± 23%
sched_debug.cfs_rq[99]:/.tg_load_contrib
414 ± 33% +98.6%823 ± 28% sched_debug.cpu#81.ttwu_count
4 ± 10% +88.2% 8 ± 12%
sched_debug.cfs_rq[33]:/.runnable_load_avg
22 ± 26% +80.9% 40 ± 24%
sched_debug.cfs_rq[103]:/.tg_load_contrib
7 ± 17% -41.4% 4 ± 25% sched_debug.cfs_rq[41]:/.load
7 ± 17% -37.9% 4 ± 19% sched_debug.cpu#41.load
3 ± 22%+106.7% 7 ± 10%
sched_debug.cfs_rq[36]:/.runnable_load_avg
174 ± 13% +48.7%259 ± 31% sched_debug.cpu#112.ttwu_count
4 ± 19% +88.9% 8 ± 5%
sched_debug.cfs_rq[35]:/.runnable_load_avg
260 ± 10% +55.6%405 ± 26% numa-vmstat.node3.nr_anon_pages
1042 ± 10% +56.0% 1626 ± 26% numa-meminfo.node3.AnonPages
26 ± 22% +74.3% 45 ± 16%
sched_debug.cfs_rq[65]:/.tg_load_contrib
21 ± 43% +71.3% 37 ± 26%
sched_debug.cfs_rq[100]:/.tg_load_contrib
3686 ± 21% +40.2% 5167 ± 19% sched_debug.cpu#16.ttwu_count
142 ± 9% +34.4%191 ± 24% sched_debug.cpu#112.ttwu_local
5 ± 18% +69.6% 9 ± 15% sched_debug.cfs_rq[35]:/.load
2 ± 30%+100.0% 5 ± 37% sched_debug.cpu#106.cpu_load[1]
3 ± 23%+100.0% 6 ± 48% sched_debug.cpu#106.cpu_load[2]
5 ± 18% +69.6% 9 ± 15% sched_debug.cpu#35.load
9 ± 20% +48.6% 13 ± 16%
sched_debug.cfs_rq[7]:/.runnable_load_avg
1727 ± 15% +43.9% 2484 ± 30% sched_debug.cpu#34.ttwu_local
10 ± 17% -40.5% 6 ± 13% sched_debug.cpu#41.cpu_load[0]
10 ± 14% -29.3% 7 ± 5% sched_debug.cpu#45.cpu_load[4]
10 ± 17% -33.3% 7 ± 10% sched_debug.cpu#41.cpu_load[1]
6121 ± 8% +56.7% 9595 ± 30% sched_debug.cpu#13.sched_goidle
13 ± 8% -25.9% 10 ± 17% sched_debug.cpu#39.cpu_load[2]
12 ± 16% -24.0% 9 ± 15% sched_debug.cpu#37.cpu_load[2]
492 ± 17% -21.3%387 ± 24% sched_debug.cpu#46.ttwu_count
3761 ± 11% -23.9% 2863 ± 15% sched_debug.cpu#93.curr->pid
570 ± 19% +43.2%816 ± 17% sched_debug.cpu#86.ttwu_count
5279 ± 8% +63.5% 8631 ± 33% sched_debug.cpu#13.ttwu_count
377 ± 22% -28.6%269 ± 14% sched_debug.cpu#46.ttwu_local
5396 ± 10% +29.9% 7007 ± 14% sched_debug.cpu#16.sched_goidle
1959 ± 12% +36.9% 2683 ± 15%
numa-vmstat.node2.nr_slab_reclaimable
7839 ± 12% +37.0% 10736 ± 15% numa-meminfo.node2.SReclaimable
5 ± 15% +66.7% 8 ± 9% sched_debug.cfs_rq[33]:/.load
5 ± 25% +47.8% 8 ± 10% sched_debug.cfs_rq[37]:/.load
2 ± 0% +87.5% 3 ± 34% sched_debug.cpu#89.cpu_load[4]
5 ± 15% +66.7% 8 ± 9% sched_debug.cpu#33.load
6 ± 23% +41.7% 8 ± 10% sched_debug.cpu#37.load
8 ± 10% -26.5% 6 ± 6% sched_debug.cpu#51.cpu_load[1]
7300 ± 37% +63.6% 11943 ± 16% softirqs.TASKLET
2984 ± 6% +43.1% 4271 ± 23% sched_debug.cpu#20.ttwu_count
328 ± 4% +40.5%462 ± 25% sched_debug.cpu#26.ttwu_local
10 ± 7% -27.5% 7 ± 5% sched_debug.cpu#43.cpu_load[3]
9 ± 8% -30.8% 6 ± 6% sched_debug.cpu#41.cpu_load[3]
9 ± 8% -27.0% 6 ± 6% sched_debug.cpu#41.cpu_load[4]
10 ± 14% -32.5% 6 ± 6% sched_debug.cpu#41.cpu_load[2]
16292 ± 6% +42.8% 23260 ± 25% sched_debug.cpu#13.nr_switches
14 ± 28% +55.9% 23 ± 8% sched_debug.cpu#99.cpu_load[0]
5 ± 8% +28.6% 6 ± 12% sched_debug.cpu#17.load
13 ± 7% -23.1% 10 ± 12% sched_debug.cpu#39.cpu_load[3]
7 ± 10% -35.7% 4 ± 11%
[LKP] [sched] a15b12ac36a: -46.9% time.voluntary_context_switches +1.5% will-it-scale.per_process_ops
FYI, we noticed the below changes on commit a15b12ac36ad4e7b856a4ae54937ae26a51aebad (sched: Do not stop cpu in set_cpus_allowed_ptr() if task is not running) testbox/testcase/testparams: lkp-g5/will-it-scale/performance-lock1 1ba93d42727c4400 a15b12ac36ad4e7b856a4ae549 -- %stddev %change %stddev \ |\ 1517261 ± 0% +1.5%1539994 ± 0% will-it-scale.per_process_ops 247 ± 30%+131.8%573 ± 49% sched_debug.cpu#61.ttwu_count 225 ± 22%+142.8%546 ± 34% sched_debug.cpu#81.ttwu_local 15115 ± 44% +37.3% 20746 ± 40% numa-meminfo.node7.Active 1028 ± 38%+115.3% 2214 ± 36% sched_debug.cpu#16.ttwu_local 2 ± 19%+133.3% 5 ± 43% sched_debug.cpu#89.cpu_load[3] 21 ± 45% +88.2% 40 ± 23% sched_debug.cfs_rq[99]:/.tg_load_contrib 414 ± 33% +98.6%823 ± 28% sched_debug.cpu#81.ttwu_count 4 ± 10% +88.2% 8 ± 12% sched_debug.cfs_rq[33]:/.runnable_load_avg 22 ± 26% +80.9% 40 ± 24% sched_debug.cfs_rq[103]:/.tg_load_contrib 7 ± 17% -41.4% 4 ± 25% sched_debug.cfs_rq[41]:/.load 7 ± 17% -37.9% 4 ± 19% sched_debug.cpu#41.load 3 ± 22%+106.7% 7 ± 10% sched_debug.cfs_rq[36]:/.runnable_load_avg 174 ± 13% +48.7%259 ± 31% sched_debug.cpu#112.ttwu_count 4 ± 19% +88.9% 8 ± 5% sched_debug.cfs_rq[35]:/.runnable_load_avg 260 ± 10% +55.6%405 ± 26% numa-vmstat.node3.nr_anon_pages 1042 ± 10% +56.0% 1626 ± 26% numa-meminfo.node3.AnonPages 26 ± 22% +74.3% 45 ± 16% sched_debug.cfs_rq[65]:/.tg_load_contrib 21 ± 43% +71.3% 37 ± 26% sched_debug.cfs_rq[100]:/.tg_load_contrib 3686 ± 21% +40.2% 5167 ± 19% sched_debug.cpu#16.ttwu_count 142 ± 9% +34.4%191 ± 24% sched_debug.cpu#112.ttwu_local 5 ± 18% +69.6% 9 ± 15% sched_debug.cfs_rq[35]:/.load 2 ± 30%+100.0% 5 ± 37% sched_debug.cpu#106.cpu_load[1] 3 ± 23%+100.0% 6 ± 48% sched_debug.cpu#106.cpu_load[2] 5 ± 18% +69.6% 9 ± 15% sched_debug.cpu#35.load 9 ± 20% +48.6% 13 ± 16% sched_debug.cfs_rq[7]:/.runnable_load_avg 1727 ± 15% +43.9% 2484 ± 30% sched_debug.cpu#34.ttwu_local 10 ± 17% -40.5% 6 ± 13% sched_debug.cpu#41.cpu_load[0] 10 ± 14% -29.3% 7 ± 5% sched_debug.cpu#45.cpu_load[4] 10 ± 17% -33.3% 7 ± 10% sched_debug.cpu#41.cpu_load[1] 6121 ± 8% +56.7% 9595 ± 30% sched_debug.cpu#13.sched_goidle 13 ± 8% -25.9% 10 ± 17% sched_debug.cpu#39.cpu_load[2] 12 ± 16% -24.0% 9 ± 15% sched_debug.cpu#37.cpu_load[2] 492 ± 17% -21.3%387 ± 24% sched_debug.cpu#46.ttwu_count 3761 ± 11% -23.9% 2863 ± 15% sched_debug.cpu#93.curr-pid 570 ± 19% +43.2%816 ± 17% sched_debug.cpu#86.ttwu_count 5279 ± 8% +63.5% 8631 ± 33% sched_debug.cpu#13.ttwu_count 377 ± 22% -28.6%269 ± 14% sched_debug.cpu#46.ttwu_local 5396 ± 10% +29.9% 7007 ± 14% sched_debug.cpu#16.sched_goidle 1959 ± 12% +36.9% 2683 ± 15% numa-vmstat.node2.nr_slab_reclaimable 7839 ± 12% +37.0% 10736 ± 15% numa-meminfo.node2.SReclaimable 5 ± 15% +66.7% 8 ± 9% sched_debug.cfs_rq[33]:/.load 5 ± 25% +47.8% 8 ± 10% sched_debug.cfs_rq[37]:/.load 2 ± 0% +87.5% 3 ± 34% sched_debug.cpu#89.cpu_load[4] 5 ± 15% +66.7% 8 ± 9% sched_debug.cpu#33.load 6 ± 23% +41.7% 8 ± 10% sched_debug.cpu#37.load 8 ± 10% -26.5% 6 ± 6% sched_debug.cpu#51.cpu_load[1] 7300 ± 37% +63.6% 11943 ± 16% softirqs.TASKLET 2984 ± 6% +43.1% 4271 ± 23% sched_debug.cpu#20.ttwu_count 328 ± 4% +40.5%462 ± 25% sched_debug.cpu#26.ttwu_local 10 ± 7% -27.5% 7 ± 5% sched_debug.cpu#43.cpu_load[3] 9 ± 8% -30.8% 6 ± 6% sched_debug.cpu#41.cpu_load[3] 9 ± 8% -27.0% 6 ± 6% sched_debug.cpu#41.cpu_load[4] 10 ± 14% -32.5% 6 ± 6% sched_debug.cpu#41.cpu_load[2] 16292 ± 6% +42.8% 23260 ± 25% sched_debug.cpu#13.nr_switches 14 ± 28% +55.9% 23 ± 8% sched_debug.cpu#99.cpu_load[0] 5 ± 8% +28.6% 6 ± 12% sched_debug.cpu#17.load 13 ± 7% -23.1% 10 ± 12% sched_debug.cpu#39.cpu_load[3] 7 ± 10% -35.7% 4 ± 11%
