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2026-02-27 - 08:14
[ 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 #e, slot #8

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 rackeslot8s.osadl.org (updated Fri Feb 27, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3215802992781,274cyclictest3483646-21turbostat22:24:553
3215802992401,236cyclictest3590139-21turbostat23:29:543
173198210,7rtkit-daemon3222225-21munin-node22:14:060
321580299186,8cyclictest3657415-21taskset00:05:163
321580299171,12cyclictest3582004-21taskset23:20:003
3215802991613,1cyclictest0-21swapper/319:29:563
321580299161,12cyclictest3312343-21turbostat20:25:003
32822162151,5sleep03283496-21kthreadcore20:00:160
32695932150,7sleep03270591-21tr19:50:150
321580299155,8cyclictest3565934-21taskset23:10:023
321580299155,7cyclictest33925202sleep321:22:493
321580299154,8cyclictest34420952sleep321:53:213
3215802991513,1cyclictest0-21swapper/320:48:193
3215802991512,1cyclictest0-21swapper/323:50:123
3215802991512,1cyclictest0-21swapper/322:28:573
321580299151,11cyclictest3459457-21taskset22:05:113
321580299151,11cyclictest3408208-21taskset21:31:213
321580299151,10cyclictest3615062-21taskset23:40:113
321580299151,10cyclictest3456554-21taskset22:00:233
321580299151,10cyclictest3324019-21taskset20:30:223
321580299151,10cyclictest3318578-21turbostat20:30:003
321580299151,10cyclictest3262122-21turbostat19:45:003
173198150,3rtkit-daemon3555583-21chrt23:00:392
321580299145,6cyclictest3249149-21taskset19:33:533
321580299144,7cyclictest3473899-21taskset22:11:403
321580299141,9cyclictest36068572sleep323:35:123
321580299141,9cyclictest3301698-21taskset20:15:163
3215802991412,1cyclictest0-21swapper/322:55:503
3215802991412,1cyclictest0-21swapper/319:35:293
3215802991412,0cyclictest0-21swapper/321:46:183
3215802991412,0cyclictest0-21swapper/321:43:413
3215802991411,1cyclictest0-21swapper/323:59:343
3215802991411,1cyclictest0-21swapper/322:45:173
3215802991411,1cyclictest0-21swapper/300:36:423
321580299141,10cyclictest3703290-21chrt00:32:043
321580299141,10cyclictest3686224-21taskset00:20:303
321580299141,10cyclictest3563748-21chrt23:05:413
321580299141,10cyclictest3336723-21taskset20:40:213
321580299140,11cyclictest3694652-21chrt00:26:113
321580299137,3cyclictest3286860-21taskset20:00:393
321580299131,9cyclictest3631087-21turbostat23:50:003
321580299131,9cyclictest3549600-21taskset23:00:043
321580299131,9cyclictest3514328-21taskset22:35:323
321580299131,9cyclictest3477120-21taskset22:15:173
321580299131,9cyclictest3450996-21turbostat22:00:003
321580299131,9cyclictest3377449-21chrt21:15:103
321580299131,9cyclictest3362923-21taskset21:05:083
321580299131,9cyclictest3343886-21chrt20:50:023
321580299131,9cyclictest32937192sleep320:10:123
321580299131,9cyclictest3287455-21taskset20:05:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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