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2026-02-10 - 17:31
[ 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 376 highest latencies:
System rack2slot7s.osadl.org (updated Tue Feb 10, 2026 07:55:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3496964995843,10cyclictest12450irq/32-eth005:40:220
3496965995741,11cyclictest117461-21multi.sh06:10:281
3496964995640,12cyclictest3808042-21execl05:50:160
3496965995041,6cyclictest109434-21multi.sh06:10:071
3496964994831,14cyclictest166135-21sh06:12:270
3496966994638,5cyclictest106387-21od06:09:592
3496965994638,5cyclictest3792879-21sh05:43:041
3496966994536,6cyclictest149590-21od06:11:462
3496964994538,4cyclictest3807183-21execl05:50:010
3496966994436,5cyclictest3788318-21sh05:42:532
3496964994430,11cyclictest71012-21multi.sh06:08:330
349696499430,38cyclictest3505714-21pipe05:30:150
3496966994229,5cyclictest0-21swapper/206:20:142
3496965994234,5cyclictest3807180-21execl05:50:021
3496965994233,6cyclictest3810544-21systemd-run06:00:011
3496966994033,4cyclictest3807182-21execl05:50:032
3496965993931,5cyclictest3808043-21execl05:50:131
3496965993931,5cyclictest184160-21aten2.4-expect06:25:021
3496966993831,4cyclictest3812294-21spawn06:03:042
3496966993831,4cyclictest3631924-21spawn05:35:022
3496966993831,4cyclictest182487-21systemd-run06:20:012
3496966993830,5cyclictest3808040-21execl05:50:162
3496966993829,6cyclictest3379120-21cups-browsed05:05:052
3496966993730,4cyclictest3726153-21kworker/u8:6+rpciod05:40:012
3496966993729,5cyclictest3810325-21Run05:56:552
3496966993728,6cyclictest563-21avahi-daemon05:20:192
3496965993730,4cyclictest3947445-21spawn06:03:341
3496964993729,5cyclictest3822850-21spawn06:02:560
3496966993629,4cyclictest3501685-21sendmail05:20:012
3496966993628,5cyclictest185494-21systemd-run06:30:012
3496964993628,5cyclictest0-21swapper/005:56:170
3496966993528,4cyclictest3500030-21latency_hist05:15:022
3496965993527,5cyclictest3686268-21munin-plugin-st05:35:011
3496965993527,5cyclictest3503133-21grep05:20:271
3496964993524,8cyclictest183851-21tail06:20:250
3496965993426,5cyclictest3726360-21sh05:40:021
3496965993224,5cyclictest185953-21sshd06:30:061
3496965993223,6cyclictest3379120-21cups-browsed06:39:131
3496965993223,6cyclictest3379120-21cups-browsed06:39:131
3496964993225,4cyclictest3726271-21sh05:40:020
3496966993125,4cyclictest3496963-21cyclictest06:35:322
3496966993125,4cyclictest3496963-21cyclictest06:35:322
3496965993122,6cyclictest3379120-21cups-browsed05:11:081
3496964993125,3cyclictest0-21swapper/006:30:170
3496966993024,3cyclictest0-21swapper/206:35:012
3496965993024,3cyclictest0-21swapper/106:20:011
3496964992920,5cyclictest0-21swapper/005:25:150
349696499291,21cyclictest3502596-21execl05:20:170
3496966992820,5cyclictest3504827-21pipe05:30:032
3496965992822,3cyclictest0-21swapper/105:30:031
3496965992818,8cyclictest3498458-21sh05:10:011
349696499278,11cyclictest171rcu_preempt06:15:150
349696499271,7cyclictest3491406-21kworker/0:0+events_freezable_power_05:05:160
3496965992619,4cyclictest1167-21mta-sts-daemon05:16:131
349696499265,17cyclictest151ktimers/005:10:180
349696799253,11cyclictest0-21swapper/306:05:493
3496964992521,2cyclictest0-21swapper/005:20:010
3496964992519,3cyclictest188504-21cron06:40:010
3496964992519,3cyclictest188504-21cron06:40:010
349696799234,13cyclictest0-21swapper/305:50:223
349696799233,13cyclictest0-21swapper/305:56:183
349696599236,3cyclictest171rcu_preempt06:25:211
349696499230,3cyclictest183933-21kworker/0:1+events_freezable_power_06:25:180
349696799223,12cyclictest0-21swapper/306:10:293
349696799222,12cyclictest0-21swapper/306:01:323
349696799203,7cyclictest0-21swapper/306:31:073
349696799202,11cyclictest0-21swapper/305:40:173
3496966991913,4cyclictest3497024-21latency_hist05:05:022
3496965991914,2cyclictest0-21swapper/105:05:021
349696799182,9cyclictest0-21swapper/305:10:143
349696499185,8cyclictest3496922-21munin-run05:05:010
349696799173,8cyclictest0-21swapper/305:35:183
349696799173,10cyclictest0-21swapper/305:50:023
349696799161,8cyclictest0-21swapper/305:25:173
349696799152,8cyclictest0-21swapper/305:20:153
349696799151,6cyclictest0-21swapper/306:20:123
349696799142,7cyclictest0-21swapper/306:30:013
349696799142,7cyclictest0-21swapper/305:05:163
349696799132,7cyclictest0-21swapper/306:35:163
349696799132,7cyclictest0-21swapper/306:35:163
349696799131,7cyclictest0-21swapper/305:30:053
349696799116,3cyclictest0-21swapper/305:05:023
349696799112,6cyclictest0-21swapper/306:15:123
349696799111,7cyclictest0-21swapper/305:15:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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