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2026-01-29 - 10:19
[ 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 100 highest latencies:
System rack2slot7s.osadl.org (updated Wed Jan 28, 2026 19:55:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3065854996556,5cyclictest3868295-21sh18:10:012
3065854996556,5cyclictest3868295-21sh18:10:012
3065854996455,6cyclictest3876872-21multi.sh18:10:252
3065852995950,5cyclictest0-21swapper/117:50:171
3065851995445,6cyclictest3873462-21tee18:10:140
3065852995345,5cyclictest3938489-21multi.sh18:12:551
3065854995244,5cyclictest3329373-21sh17:41:442
3065851995130,17cyclictest3294787-21sh17:40:060
3065851995042,5cyclictest3867495-21multi.sh18:09:570
3065851995042,5cyclictest3867495-21multi.sh18:09:570
3065854994839,6cyclictest3293652-21munin-plugin-st17:40:012
3065852994840,5cyclictest3827815-21sh18:08:201
3065852994840,5cyclictest3827815-21sh18:08:201
3065852994840,5cyclictest3348429-21sh17:42:341
3065854994429,11cyclictest351ktimers/218:35:082
3065852994437,4cyclictest3374744-21grep17:50:011
3065854994334,6cyclictest3378324-21Run18:00:022
3065854994334,6cyclictest3378324-21Run18:00:022
3065852994335,5cyclictest3070531-21grep17:20:011
3065851994335,4cyclictest3374744-21grep17:50:010
3065851994331,8cyclictest0-21swapper/017:50:120
3065851994328,13cyclictest3065871-21latency_hist17:05:030
3065854994235,4cyclictest3374420-21execl17:50:032
3065852994231,8cyclictest3943573-21/usr/sbin/munin18:20:021
3065851994133,5cyclictest563-21avahi-daemon17:20:010
3065854994031,6cyclictest3517869-21spawn18:03:272
3065852994032,5cyclictest3068652-21Run17:15:011
3065852994031,7cyclictest0-21swapper/117:59:071
3065852994031,7cyclictest0-21swapper/117:59:071
3065851994033,4cyclictest3786577-21Run18:04:590
3065854993932,4cyclictest3943336-21systemd-run18:20:012
3065852993930,6cyclictest3463933-21spawn18:03:121
3065851993922,10cyclictest3066235-21ntpq17:05:080
3065851993922,10cyclictest3066235-21ntpq17:05:080
3065854993829,5cyclictest3375196-21missed_timers17:50:062
3065852993729,5cyclictest3294247-21latency_hist17:40:031
3065851993730,5cyclictest3068652-21sh17:15:010
3065854993629,4cyclictest3072143-21munin-plugin-st17:25:012
3065854993628,5cyclictest3258112-21spawn17:35:012
3065852993627,6cyclictest1758888-21cups-browsed17:25:001
3065851993629,4cyclictest3293674-21tee17:40:010
3065851993628,6cyclictest3606321-21systemd-journal17:35:010
3065854993527,5cyclictest3946306-21munin-plugin-st18:30:012
3065854993527,5cyclictest3946306-21munin-plugin-st18:30:012
3065854993525,3cyclictest171rcu_preempt18:30:072
3065854993525,3cyclictest171rcu_preempt18:30:072
3065852993523,9cyclictest3945210-21needreboot18:25:031
3065852993523,9cyclictest3945210-21needreboot18:25:031
3065851993529,3cyclictest0-21swapper/018:20:010
3065854993413,8cyclictest3070481-21/usr/sbin/munin17:20:012
3065851993428,4cyclictest3377272-21threads17:55:190
3065851993428,4cyclictest3377272-21threads17:55:190
3065854993328,2cyclictest0-21swapper/217:30:042
306585199339,5cyclictest14-21ksoftirqd/018:35:040
3065851993327,4cyclictest3072117-21cron17:25:010
3065851993325,5cyclictest3947862-21cron18:35:000
3065851993325,5cyclictest3947862-21cron18:35:000
3065854993225,4cyclictest3944985-21latency_hist18:25:022
3065854993224,5cyclictest1-21systemd17:05:022
3065851993226,4cyclictest3944925-21/usr/sbin/munin18:25:010
3065851993211,5cyclictest14-21ksoftirqd/017:30:040
306585499314,9cyclictest36-21ksoftirqd/217:10:062
306585499314,6cyclictest36-21ksoftirqd/217:10:012
306585499314,6cyclictest36-21ksoftirqd/217:10:012
306585299311,27cyclictest3074068-21pipe17:30:181
3065851993021,4cyclictest171rcu_preempt18:27:250
3065851993021,4cyclictest171rcu_preempt18:27:250
3065852992921,5cyclictest3949294-21munin-plugin-st18:40:001
3065852992919,5cyclictest1758888-21cups-browsed18:22:171
3065852992820,5cyclictest3947889-21awk18:35:001
3065852992820,5cyclictest3947889-21awk18:35:001
3065852992721,3cyclictest0-21swapper/117:05:031
306585299271,20cyclictest3073152-21fstime17:28:461
3065852992610,3cyclictest171rcu_preempt17:05:071
3065852992610,3cyclictest171rcu_preempt17:05:071
306585599182,6cyclictest0-21swapper/317:40:043
306585599181,8cyclictest0-21swapper/318:00:053
306585599175,8cyclictest0-21swapper/318:10:163
306585599171,9cyclictest0-21swapper/317:20:083
306585599162,8cyclictest0-21swapper/317:50:173
306585599152,5cyclictest0-21swapper/318:05:053
306585599152,5cyclictest0-21swapper/318:05:053
306585599151,7cyclictest0-21swapper/317:55:113
306585599151,7cyclictest0-21swapper/317:55:113
306585599142,6cyclictest0-21swapper/317:46:303
306585599131,8cyclictest0-21swapper/317:30:103
306585599131,5cyclictest0-21swapper/317:15:063
306585599130,5cyclictest0-21swapper/318:35:043
306585599122,6cyclictest0-21swapper/317:15:013
306585599121,6cyclictest0-21swapper/317:05:133
306585599121,6cyclictest0-21swapper/317:05:133
306585599121,5cyclictest0-21swapper/317:25:043
306585599111,6cyclictest0-21swapper/317:35:183
306585599102,4cyclictest0-21swapper/318:30:033
306585599102,4cyclictest0-21swapper/318:30:033
306585599101,5cyclictest0-21swapper/318:20:053
306585599101,5cyclictest0-21swapper/318:15:063
30658559991,3cyclictest0-21swapper/318:30:073
30658559991,3cyclictest0-21swapper/318:30:073
30658559990,5cyclictest431ktimers/317:05:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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