Re: [PATCH 0/5] sched: Lazy preemption muck
From: Mike Galbraith
Date: Thu Oct 17 2024 - 08:39:26 EST
On Mon, 2024-10-07 at 09:46 +0200, Peter Zijlstra wrote:
> Hi!
>
> During LPC Thomas reminded me that the lazy preemption stuff was not there yet.
>
> So here goes, robot says it builds, and I checked both a regular and PREEMPT_RT
> build boots and can change the mode.
>
> Please have a poke.
Lazy seems to be the least sleeper friendly, and voluntary the most
switch happy of the three models tested (a bit counter-intuitive). Not
sure I should post these results, nobody will ever notice these deltas
in their desktop, but they are carefully gathered cold hard numbers, so
what the heck, deleting them takes only a moment.
All data collected against virgin master with only this patch set then
applied, ie there are zero deltas other than the lazy set and model
selection. The load profiled is my favorite completely hands off mixed
compute vs chrome desktop load, 3 runs of lazy and full compared to 2
runs of voluntary, I called that good enough after looking, not being
willing to do any more of what I have done oodles of in the past days.
I found sum delay deltas interesting.. and sensible after pondering,
nothing being free, delaying preemption of wider bodied compute tasks
has to impact somewhere. Should desktop components become very busy,
they'll be doing the impacting.
Full per run summaries attached, high speed scroll version below.
desktop util 18.1% static voluntary - virgin source
desktop util 18.3% static voluntary - +lazy patches
desktop util 17.5% lazy - ditto...
desktop util 17.0% lazy
desktop util 16.8% lazy
desktop util 17.8% full
desktop util 17.8% full
desktop util 17.8% full
Profile summary bottom lines, same order (ignore bottom line delay max, includes nice tasks)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
voluntary
TOTAL: |2281560.794 ms | 18514617 | | 60.836 ms | 1101651.105 ms |
TOTAL: |2280493.511 ms | 18679820 | | 49.278 ms | 1117078.210 ms |
lazy avg 1109364.657 1.000
TOTAL: |2302856.995 ms | 15141600 | | 68.303 ms | 1316229.527 ms |
TOTAL: |2299911.697 ms | 15979830 | | 29.361 ms | 1276128.457 ms |
TOTAL: |2298180.079 ms | 16665916 | | 34.918 ms | 1271137.849 ms |
full avg 1287831.944 1.160
TOTAL: |2279751.696 ms | 16628663 | | 36.929 ms | 977433.245 ms |
TOTAL: |2278306.187 ms | 15846728 | | 79.954 ms | 974772.318 ms |
TOTAL: |2282262.311 ms | 17152068 | | 28.004 ms | 990068.590 ms |
avg 980758.051 .884
Detail extract for the 3 top players:
voluntary
massive_intr:(9) |1869421.285 ms | 5752848 | avg: 0.056 ms | max: 23.502 ms | sum:324608.328 ms |
massive_intr:(9) |1864362.822 ms | 5606194 | avg: 0.059 ms | max: 20.343 ms | sum:328920.012 ms |
avg 326764.170 1.000
dav1d-worker:(8) | 155700.590 ms | 1091524 | avg: 0.300 ms | max: 25.215 ms | sum:327735.383 ms |
dav1d-worker:(8) | 160730.867 ms | 1123134 | avg: 0.299 ms | max: 26.783 ms | sum:335553.750 ms |
avg 331644.566 1.000
X:2534 | 51690.650 ms | 223470 | avg: 0.122 ms | max: 10.367 ms | sum:27371.213 ms |
X:2522 | 51355.479 ms | 232615 | avg: 0.121 ms | max: 14.223 ms | sum:28243.127 ms |
avg 27807.170 1.000
lazy
massive_intr:(9) |1900362.729 ms | 4443987 | avg: 0.066 ms | max: 23.997 ms | sum:294806.423 ms |
massive_intr:(9) |1909494.321 ms | 4624111 | avg: 0.061 ms | max: 20.215 ms | sum:282640.873 ms |
massive_intr:(9) |1913482.381 ms | 4896729 | avg: 0.057 ms | max: 19.473 ms | sum:277651.582 ms |
avg 285032.959 .872
dav1d-worker:(8) | 164649.511 ms | 849691 | avg: 0.531 ms | max: 21.537 ms | sum:451592.116 ms |
dav1d-worker:(8) | 151579.745 ms | 850584 | avg: 0.505 ms | max: 29.119 ms | sum:429540.789 ms |
dav1d-worker:(8) | 145472.762 ms | 860714 | avg: 0.489 ms | max: 22.005 ms | sum:420927.393 ms |
avg 434020.099 1.308
X:2508 | 53119.214 ms | 317117 | avg: 0.135 ms | max: 11.995 ms | sum:42917.248 ms |
X:2508 | 53047.311 ms | 311231 | avg: 0.137 ms | max: 17.974 ms | sum:42601.534 ms |
X:2508 | 48692.053 ms | 333137 | avg: 0.129 ms | max: 13.263 ms | sum:43140.962 ms |
avg 42886.581 1.542
full
massive_intr:(9) |1875426.524 ms | 5559171 | avg: 0.057 ms | max: 19.817 ms | sum:315854.813 ms |
massive_intr:(9) |1873997.628 ms | 4945112 | avg: 0.064 ms | max: 18.035 ms | sum:315257.596 ms |
massive_intr:(9) |1876339.600 ms | 5569489 | avg: 0.057 ms | max: 20.473 ms | sum:317771.140 ms |
avg 316294.516 .967
dav1d-worker:(8) | 157496.413 ms | 914670 | avg: 0.333 ms | max: 24.006 ms | sum:304944.125 ms |
dav1d-worker:(8) | 161723.573 ms | 879090 | avg: 0.354 ms | max: 26.070 ms | sum:310806.145 ms |
dav1d-worker:(8) | 157653.936 ms | 929556 | avg: 0.331 ms | max: 21.664 ms | sum:307315.109 ms |
avg 307688.459 .927
X:2502 | 52845.691 ms | 131220 | avg: 0.135 ms | max: 11.479 ms | sum:17656.654 ms |
X:2502 | 47884.248 ms | 134000 | avg: 0.148 ms | max: 12.068 ms | sum:19768.297 ms |
X:2502 | 51731.371 ms | 145167 | avg: 0.132 ms | max: 15.995 ms | sum:19180.803 ms |
avg 18868.584 .678
key: + postfix to name means lazy patch set applied, +lazy meany dynamic with lazy default.
No postfix or only + postfix means static voluntary (my chosen default).
end of line postfix in parens = model during test run
perf sched lat -i perf.data.full.6.12.0.g6485cf5-master-virgin --sort=runtime -S 15 -T (static voluntary)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
massive_intr:(9) |1869421.285 ms | 5752848 | avg: 0.056 ms | max: 23.502 ms | sum:324608.328 ms |
dav1d-worker:(8) | 155700.590 ms | 1091524 | avg: 0.300 ms | max: 25.215 ms | sum:327735.383 ms |
X:2534 | 51690.650 ms | 223470 | avg: 0.122 ms | max: 10.367 ms | sum:27371.213 ms |
VizCompositorTh:4732 | 37826.030 ms | 176382 | avg: 0.183 ms | max: 11.527 ms | sum:32269.244 ms |
ThreadPoolForeg:(50) | 23708.799 ms | 162325 | avg: 0.276 ms | max: 22.754 ms | sum:44853.075 ms |
kworker/u32:3-e:67 | 21922.222 ms | 3950152 | avg: 0.013 ms | max: 12.980 ms | sum:49901.452 ms |
kwin_x11:2927 | 18956.612 ms | 197986 | avg: 0.089 ms | max: 14.978 ms | sum:17669.582 ms |
chrome:(9) | 18146.220 ms | 162581 | avg: 0.181 ms | max: 18.931 ms | sum:29448.275 ms |
VideoFrameCompo:4740 | 16994.546 ms | 206270 | avg: 0.159 ms | max: 12.552 ms | sum:32785.727 ms |
kworker/u32:2-e:66 | 12923.440 ms | 2337049 | avg: 0.013 ms | max: 12.206 ms | sum:29439.455 ms |
kthreadd:(4) | 8651.856 ms | 1545898 | avg: 0.013 ms | max: 13.244 ms | sum:20645.416 ms |
Compositor:(2) | 7434.109 ms | 121329 | avg: 0.154 ms | max: 10.758 ms | sum:18628.354 ms |
Chrome_ChildIOT:(6) | 7164.010 ms | 242003 | avg: 0.167 ms | max: 12.135 ms | sum:40383.425 ms |
Media:4739 | 6188.846 ms | 100660 | avg: 0.173 ms | max: 16.322 ms | sum:17384.775 ms |
kworker/u32:5+e:69 | 4557.938 ms | 812666 | avg: 0.012 ms | max: 11.581 ms | sum:10014.729 ms |
----------------------------------------------------------------------------------------------------------
TOTAL: |2281560.794 ms | 18514617 | | 60.836 ms | 1101651.105 ms |
----------------------------------------------------------------------------------------------------------
desktop util 18.1%
perf sched lat -i perf.data.full.6.12.0.g6485cf5-master-virgin+ --sort=runtime -S 15 -T (static voluntary)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
massive_intr:(9) |1864362.822 ms | 5606194 | avg: 0.059 ms | max: 20.343 ms | sum:328920.012 ms |
dav1d-worker:(8) | 160730.867 ms | 1123134 | avg: 0.299 ms | max: 26.783 ms | sum:335553.750 ms |
X:2522 | 51355.479 ms | 232615 | avg: 0.121 ms | max: 14.223 ms | sum:28243.127 ms |
VizCompositorTh:4708 | 37705.826 ms | 175678 | avg: 0.186 ms | max: 12.171 ms | sum:32642.549 ms |
kworker/u32:1-e:65 | 23712.990 ms | 4302933 | avg: 0.012 ms | max: 14.379 ms | sum:50073.553 ms |
ThreadPoolForeg:(51) | 23354.248 ms | 146424 | avg: 0.305 ms | max: 32.721 ms | sum:44677.022 ms |
chrome:(9) | 17611.783 ms | 144228 | avg: 0.199 ms | max: 22.482 ms | sum:28732.916 ms |
VideoFrameCompo:4716 | 17198.595 ms | 183878 | avg: 0.178 ms | max: 15.286 ms | sum:32792.967 ms |
kwin_x11:2923 | 17183.572 ms | 190690 | avg: 0.105 ms | max: 11.328 ms | sum:20051.466 ms |
kworker/u32:3-e:67 | 16584.163 ms | 3004657 | avg: 0.012 ms | max: 12.297 ms | sum:36189.183 ms |
kworker/u32:6+e:70 | 8787.851 ms | 1589820 | avg: 0.012 ms | max: 9.698 ms | sum:19232.965 ms |
Chrome_ChildIOT:(7) | 7652.436 ms | 240093 | avg: 0.172 ms | max: 15.259 ms | sum:41196.085 ms |
Compositor:(2) | 7504.380 ms | 110731 | avg: 0.176 ms | max: 15.048 ms | sum:19475.037 ms |
Media:4715 | 6080.907 ms | 97641 | avg: 0.180 ms | max: 16.142 ms | sum:17589.459 ms |
kworker/u32:4-e:68 | 3700.463 ms | 665402 | avg: 0.011 ms | max: 9.711 ms | sum: 7460.158 ms |
----------------------------------------------------------------------------------------------------------
TOTAL: |2280493.511 ms | 18679820 | | 49.278 ms | 1117078.210 ms |
----------------------------------------------------------------------------------------------------------
desktop util 18.3%
perf sched lat -i perf.data.full.6.12.0.g6485cf5-master-virgin+lazy --sort=runtime -S 15 -T (lazy)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
massive_intr:(9) |1900362.729 ms | 4443987 | avg: 0.066 ms | max: 23.997 ms | sum:294806.423 ms |
dav1d-worker:(8) | 164649.511 ms | 849691 | avg: 0.531 ms | max: 21.537 ms | sum:451592.116 ms |
X:2508 | 53119.214 ms | 317117 | avg: 0.135 ms | max: 11.995 ms | sum:42917.248 ms |
VizCompositorTh:4721 | 36975.869 ms | 177119 | avg: 0.214 ms | max: 14.383 ms | sum:37942.002 ms |
ThreadPoolForeg:(50) | 21374.995 ms | 161261 | avg: 0.333 ms | max: 21.738 ms | sum:53733.127 ms |
chrome:(9) | 17705.822 ms | 148144 | avg: 0.212 ms | max: 13.684 ms | sum:31335.048 ms |
kwin_x11:2923 | 16293.433 ms | 195305 | avg: 0.095 ms | max: 11.748 ms | sum:18627.124 ms |
VideoFrameCompo:4729 | 15607.441 ms | 192906 | avg: 0.198 ms | max: 26.420 ms | sum:38273.853 ms |
kworker/u32:2+e:67 | 14288.685 ms | 2697907 | avg: 0.016 ms | max: 11.137 ms | sum:42158.772 ms |
kworker/u32:4-e:69 | 10809.304 ms | 2030937 | avg: 0.014 ms | max: 12.982 ms | sum:29118.478 ms |
kworker/u32:0-e:11 | 9670.564 ms | 1804924 | avg: 0.015 ms | max: 12.053 ms | sum:27919.959 ms |
Compositor:(2) | 7720.155 ms | 117533 | avg: 0.227 ms | max: 13.540 ms | sum:26654.650 ms |
Chrome_ChildIOT:(8) | 7168.602 ms | 267822 | avg: 0.237 ms | max: 15.399 ms | sum:63353.885 ms |
Media:4728 | 6501.220 ms | 111442 | avg: 0.278 ms | max: 15.456 ms | sum:31018.087 ms |
kworker/u32:1-e:66 | 2912.893 ms | 542561 | avg: 0.014 ms | max: 8.670 ms | sum: 7829.852 ms |
----------------------------------------------------------------------------------------------------------
TOTAL: |2302856.995 ms | 15141600 | | 68.303 ms | 1316229.527 ms |
----------------------------------------------------------------------------------------------------------
desktop util 17.5%
perf sched lat -i perf.data.full.6.12.0.g6485cf5-master-virgin+lazy --sort=runtime -S 15 -T (lazy)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
massive_intr:(9) |1909494.321 ms | 4624111 | avg: 0.061 ms | max: 20.215 ms | sum:282640.873 ms |
dav1d-worker:(8) | 151579.745 ms | 850584 | avg: 0.505 ms | max: 29.119 ms | sum:429540.789 ms |
X:2508 | 53047.311 ms | 311231 | avg: 0.137 ms | max: 17.974 ms | sum:42601.534 ms |
VizCompositorTh:6893 | 37686.973 ms | 170197 | avg: 0.216 ms | max: 11.311 ms | sum:36749.812 ms |
ThreadPoolForeg:(44) | 21710.844 ms | 146025 | avg: 0.362 ms | max: 28.152 ms | sum:52931.194 ms |
chrome:(9) | 16248.165 ms | 131728 | avg: 0.210 ms | max: 16.033 ms | sum:27695.200 ms |
VideoFrameCompo:6900 | 15484.140 ms | 169752 | avg: 0.223 ms | max: 13.208 ms | sum:37797.691 ms |
kwin_x11:2923 | 15121.315 ms | 197942 | avg: 0.100 ms | max: 11.027 ms | sum:19749.568 ms |
kthreadd:(5) | 13906.868 ms | 2631171 | avg: 0.013 ms | max: 10.195 ms | sum:34262.373 ms |
kworker/u32:1:6943 | 10539.864 ms | 1973511 | avg: 0.015 ms | max: 11.001 ms | sum:28668.999 ms |
kworker/u32:10-:443 | 10211.276 ms | 1901469 | avg: 0.014 ms | max: 10.742 ms | sum:26474.182 ms |
Compositor:(2) | 7353.627 ms | 117889 | avg: 0.215 ms | max: 23.917 ms | sum:25324.895 ms |
Chrome_ChildIOT:(6) | 7005.489 ms | 256715 | avg: 0.243 ms | max: 17.614 ms | sum:62365.700 ms |
Media:6899 | 6223.856 ms | 107444 | avg: 0.287 ms | max: 13.516 ms | sum:30849.560 ms |
kworker/u32:0+e:5784 | 4113.435 ms | 783320 | avg: 0.015 ms | max: 10.960 ms | sum:11400.850 ms |
----------------------------------------------------------------------------------------------------------
TOTAL: |2299911.697 ms | 15979830 | | 29.361 ms | 1276128.457 ms |
----------------------------------------------------------------------------------------------------------
desktop util 17.0%
perf sched lat -i perf.data.full.6.12.0.g6485cf5-master-virgin+lazy --sort=runtime -S 15 -T (lazy)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
massive_intr:(9) |1913482.381 ms | 4896729 | avg: 0.057 ms | max: 19.473 ms | sum:277651.582 ms |
dav1d-worker:(8) | 145472.762 ms | 860714 | avg: 0.489 ms | max: 22.005 ms | sum:420927.393 ms |
X:2508 | 48692.053 ms | 333137 | avg: 0.129 ms | max: 13.263 ms | sum:43140.962 ms |
VizCompositorTh:7462 | 38247.597 ms | 190153 | avg: 0.194 ms | max: 15.145 ms | sum:36874.818 ms |
ThreadPoolForeg:(48) | 20907.127 ms | 154823 | avg: 0.337 ms | max: 22.605 ms | sum:52112.821 ms |
chrome:(9) | 17173.249 ms | 145326 | avg: 0.206 ms | max: 15.988 ms | sum:29981.372 ms |
kwin_x11:2923 | 16655.041 ms | 206479 | avg: 0.096 ms | max: 20.335 ms | sum:19726.071 ms |
kworker/u32:3-e:6967 | 16211.545 ms | 3036606 | avg: 0.013 ms | max: 14.750 ms | sum:39934.280 ms |
VideoFrameCompo:7469 | 15487.829 ms | 183878 | avg: 0.205 ms | max: 11.149 ms | sum:37702.223 ms |
kworker/u32:10+:443 | 12143.699 ms | 2296001 | avg: 0.015 ms | max: 12.346 ms | sum:35025.772 ms |
kthreadd:(3) | 8806.543 ms | 1663465 | avg: 0.013 ms | max: 10.732 ms | sum:22443.117 ms |
Compositor:(2) | 7433.129 ms | 118757 | avg: 0.215 ms | max: 13.616 ms | sum:25591.282 ms |
Chrome_ChildIOT:(7) | 7305.424 ms | 270553 | avg: 0.230 ms | max: 15.037 ms | sum:62314.818 ms |
kworker/u32:0-e:5784 | 7032.254 ms | 1305707 | avg: 0.016 ms | max: 10.448 ms | sum:21170.660 ms |
Media:7468 | 6246.502 ms | 114745 | avg: 0.269 ms | max: 14.205 ms | sum:30891.031 ms |
----------------------------------------------------------------------------------------------------------
TOTAL: |2298180.079 ms | 16665916 | | 34.918 ms | 1271137.849 ms |
----------------------------------------------------------------------------------------------------------
desktop util 16.8%
perf sched lat -i perf.data.full.6.12.0.g6485cf5-master-virgin+lazy --sort=runtime -S 15 -T (full)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
massive_intr:(9) |1875426.524 ms | 5559171 | avg: 0.057 ms | max: 19.817 ms | sum:315854.813 ms |
dav1d-worker:(8) | 157496.413 ms | 914670 | avg: 0.333 ms | max: 24.006 ms | sum:304944.125 ms |
X:2502 | 52845.691 ms | 131220 | avg: 0.135 ms | max: 11.479 ms | sum:17656.654 ms |
VizCompositorTh:4696 | 38197.336 ms | 141737 | avg: 0.137 ms | max: 18.307 ms | sum:19416.930 ms |
ThreadPoolForeg:(51) | 23793.225 ms | 134975 | avg: 0.261 ms | max: 31.737 ms | sum:35236.105 ms |
kworker/u32:0+e:11 | 17946.233 ms | 3215726 | avg: 0.013 ms | max: 10.694 ms | sum:43005.547 ms |
chrome:(9) | 17507.091 ms | 126012 | avg: 0.193 ms | max: 23.634 ms | sum:24345.823 ms |
VideoFrameCompo:4704 | 16601.850 ms | 182901 | avg: 0.113 ms | max: 19.033 ms | sum:20589.840 ms |
kwin_x11:2893 | 15846.601 ms | 127128 | avg: 0.062 ms | max: 12.846 ms | sum: 7940.111 ms |
kworker/u32:1-e:66 | 12786.558 ms | 2287904 | avg: 0.014 ms | max: 11.131 ms | sum:31205.819 ms |
kworker/u32:2-e:67 | 10965.214 ms | 1980760 | avg: 0.014 ms | max: 9.275 ms | sum:27031.219 ms |
Compositor:(2) | 7367.684 ms | 110725 | avg: 0.122 ms | max: 13.756 ms | sum:13491.791 ms |
Chrome_ChildIOT:(6) | 7104.071 ms | 201664 | avg: 0.147 ms | max: 12.163 ms | sum:29735.926 ms |
Media:4703 | 6053.286 ms | 98687 | avg: 0.150 ms | max: 12.463 ms | sum:14815.330 ms |
kworker/u32:9-e:441 | 3229.031 ms | 573689 | avg: 0.014 ms | max: 9.088 ms | sum: 7951.808 ms |
----------------------------------------------------------------------------------------------------------
TOTAL: |2279751.696 ms | 16628663 | | 36.929 ms | 977433.245 ms |
----------------------------------------------------------------------------------------------------------
desktop util 17.8%
perf sched lat -i perf.data.full.6.12.0.g6485cf5-master-virgin+lazy --sort=runtime -S 15 -T (full)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
massive_intr:(9) |1873997.628 ms | 4945112 | avg: 0.064 ms | max: 18.035 ms | sum:315257.596 ms |
dav1d-worker:(8) | 161723.573 ms | 879090 | avg: 0.354 ms | max: 26.070 ms | sum:310806.145 ms |
X:2502 | 47884.248 ms | 134000 | avg: 0.148 ms | max: 12.068 ms | sum:19768.297 ms |
VizCompositorTh:5049 | 37631.978 ms | 134948 | avg: 0.139 ms | max: 20.005 ms | sum:18802.998 ms |
ThreadPoolForeg:(48) | 23020.803 ms | 116519 | avg: 0.291 ms | max: 29.007 ms | sum:33854.527 ms |
chrome:(9) | 17637.863 ms | 119032 | avg: 0.204 ms | max: 19.511 ms | sum:24251.886 ms |
VideoFrameCompo:5056 | 17097.638 ms | 147969 | avg: 0.140 ms | max: 11.943 ms | sum:20646.996 ms |
kwin_x11:2893 | 16276.749 ms | 129768 | avg: 0.083 ms | max: 12.346 ms | sum:10783.203 ms |
kworker/u32:0+e:11 | 13930.578 ms | 2506472 | avg: 0.012 ms | max: 10.309 ms | sum:30183.580 ms |
kworker/u32:1-e:66 | 12053.560 ms | 2168793 | avg: 0.012 ms | max: 9.961 ms | sum:26421.505 ms |
kthreadd:(4) | 8379.998 ms | 1491424 | avg: 0.014 ms | max: 9.089 ms | sum:20605.324 ms |
Compositor:(2) | 7525.028 ms | 103715 | avg: 0.136 ms | max: 13.257 ms | sum:14070.263 ms |
Chrome_ChildIOT:(8) | 7029.210 ms | 190254 | avg: 0.155 ms | max: 20.680 ms | sum:29474.689 ms |
Media:5055 | 6172.148 ms | 90196 | avg: 0.166 ms | max: 11.774 ms | sum:15011.825 ms |
kworker/u32:9-i:441 | 5586.635 ms | 1007957 | avg: 0.011 ms | max: 14.529 ms | sum:11402.402 ms |
----------------------------------------------------------------------------------------------------------
TOTAL: |2278306.187 ms | 15846728 | | 79.954 ms | 974772.318 ms |
----------------------------------------------------------------------------------------------------------
desktop util 17.8%
perf sched lat -i perf.data.full.6.12.0.g6485cf5-master-virgin+lazy --sort=runtime -S 15 -T (full)
----------------------------------------------------------------------------------------------------------
Task | Runtime ms | Switches | Avg delay ms | Max delay ms | Sum delay ms |
----------------------------------------------------------------------------------------------------------
massive_intr:(9) |1876339.600 ms | 5569489 | avg: 0.057 ms | max: 20.473 ms | sum:317771.140 ms |
dav1d-worker:(8) | 157653.936 ms | 929556 | avg: 0.331 ms | max: 21.664 ms | sum:307315.109 ms |
X:2502 | 51731.371 ms | 145167 | avg: 0.132 ms | max: 15.995 ms | sum:19180.803 ms |
VizCompositorTh:5879 | 37636.433 ms | 145822 | avg: 0.128 ms | max: 13.675 ms | sum:18675.236 ms |
ThreadPoolForeg:(50) | 22727.468 ms | 118237 | avg: 0.297 ms | max: 28.004 ms | sum:35105.904 ms |
kworker/u32:1+e:66 | 18944.682 ms | 3398565 | avg: 0.013 ms | max: 12.287 ms | sum:44070.394 ms |
chrome:(9) | 17697.852 ms | 128113 | avg: 0.193 ms | max: 19.843 ms | sum:24676.480 ms |
kthreadd:(3) | 17129.315 ms | 3074837 | avg: 0.013 ms | max: 14.654 ms | sum:41107.807 ms |
VideoFrameCompo:5886 | 16956.260 ms | 167159 | avg: 0.125 ms | max: 12.120 ms | sum:20955.174 ms |
kwin_x11:2893 | 15744.805 ms | 128937 | avg: 0.076 ms | max: 15.872 ms | sum: 9811.977 ms |
kworker/u32:3-e:5390 | 7597.088 ms | 1370365 | avg: 0.013 ms | max: 9.726 ms | sum:18185.745 ms |
Compositor:(2) | 7591.781 ms | 110688 | avg: 0.127 ms | max: 13.707 ms | sum:14065.114 ms |
Chrome_ChildIOT:(6) | 6916.739 ms | 198787 | avg: 0.149 ms | max: 12.443 ms | sum:29695.890 ms |
Media:5885 | 6161.402 ms | 95843 | avg: 0.158 ms | max: 13.595 ms | sum:15189.381 ms |
kworker/u32:0-e:11 | 3038.438 ms | 520012 | avg: 0.014 ms | max: 9.409 ms | sum: 7259.283 ms |
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TOTAL: |2282262.311 ms | 17152068 | | 28.004 ms | 990068.590 ms |
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desktop util 17.8%