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2026-02-24 - 09:17
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack2slot7s.osadl.org (updated Mon Feb 23, 2026 19:55:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2096388996653,7cyclictest0-21swapper/017:25:270
2096390996456,5cyclictest2919509-21od18:10:362
2096390995932,18cyclictest2102748-21kworker/u8:3+xprtiod17:50:232
2096389995749,5cyclictest2905956-21sh18:10:011
2096389995749,5cyclictest2905956-21sh18:10:011
2096388995743,11cyclictest2411352-21fstime17:58:240
2096390995647,5cyclictest2905909-21sort18:10:012
2096390995647,5cyclictest2905909-21sort18:10:012
2096389995648,5cyclictest2919342-21sh18:10:351
2096389995346,3cyclictest0-21swapper/117:50:241
2096389995244,5cyclictest2397214-21sh17:43:081
2096389995244,5cyclictest2397214-21sh17:43:081
2096388995245,5cyclictest2921335-21sh18:10:420
2096389995143,5cyclictest2101149-21munin-run17:20:011
2096388995144,4cyclictest0-21swapper/017:50:260
2096390994839,5cyclictest2369654-21sh17:41:572
2096390994839,5cyclictest2369654-21sh17:41:572
209638899484,41cyclictest1165-21mta-sts-daemon17:22:350
2096388994735,9cyclictest2413191-21Run18:02:060
2096388994638,5cyclictest2403294-21sh17:43:230
2096388994638,5cyclictest2403294-21sh17:43:230
2096388994538,4cyclictest2906110-21multi.sh18:10:020
2096388994538,4cyclictest2906110-21multi.sh18:10:020
2096390994310,6cyclictest171rcu_preempt17:20:252
2096389994334,5cyclictest2408183-21execl17:50:021
2096390994233,6cyclictest2294316-21cron17:35:012
2096389994033,4cyclictest2329521-21latency_hist17:40:031
2096389994032,5cyclictest2547772-21sh18:03:221
2096390993930,6cyclictest791129-21cups-browsed18:25:262
209638999395,29cyclictest2101629-21execl17:20:231
2096390993828,6cyclictest2485444-21spawn18:03:052
209639099381,32cyclictest2102895-21fstime17:25:222
209638999384,27cyclictest564-21dbus-daemon17:57:021
2096389993729,5cyclictest2099403-21cron17:15:011
2096389993722,10cyclictest564-21dbus-daemon18:40:011
2096389993717,15cyclictest564-21dbus-daemon18:15:221
2096388993730,4cyclictest2408189-21cron17:50:000
2096390993628,5cyclictest2097860-21md.daily17:08:292
2096390993628,4cyclictest0-21swapper/218:30:282
209639099361,32cyclictest2411331-21fstime17:57:002
209638899362,31cyclictest2105193-21pipe17:30:240
2096388993515,16cyclictest151ktimers/017:08:300
2096390993426,5cyclictest2408194-21latency_hist17:50:022
2096389993426,4cyclictest0-21swapper/117:25:291
2096389993425,6cyclictest2982851-21aten_r2power_po18:30:141
2096389993424,7cyclictest2982506-21systemd-run18:30:021
2096389993416,4cyclictest171rcu_preempt17:05:251
2096388993428,4cyclictest2979363-21tail18:15:330
2096390993325,3cyclictest0-21swapper/218:20:282
2096388993218,12cyclictest2304395-21sh17:37:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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