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2026-02-22 - 16:37
[ 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 #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Sun Feb 22, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2426221440,0sleep10-21swapper/109:35:221
14154211892,21sleep00-21swapper/007:06:360
14232211596,14sleep10-21swapper/107:07:371
14186211494,15sleep20-21swapper/207:07:022
14125210286,11sleep30-21swapper/307:06:153
174182770,1sleep0101ktimersoftd/007:15:170
50012750,0sleep00-21swapper/010:55:380
82422660,1sleep08245-21sed08:10:340
1445199350,2cyclictest0-21swapper/211:30:112
14448992925,3cyclictest0-21swapper/010:45:100
1444899256,17cyclictest0-21swapper/012:25:100
1444899230,2cyclictest0-21swapper/011:30:120
304202220,0sleep30-21swapper/311:22:223
128992220,0sleep00-21swapper/008:24:590
321122210,0sleep00-21swapper/011:57:380
14454992017,2cyclictest17030-21kworker/u8:211:09:053
14451992017,2cyclictest21563-21kworker/u8:009:42:052
1445199200,2cyclictest0-21swapper/209:30:112
14454991916,2cyclictest4738-21kworker/u8:211:41:053
14454991916,2cyclictest20447-21kworker/u8:012:25:053
14451991916,2cyclictest8406-21kworker/u8:111:17:052
14451991916,2cyclictest20447-21kworker/u8:012:35:042
14451991916,2cyclictest19088-21kworker/u8:011:04:052
14451991916,2cyclictest15019-21kworker/u8:010:09:052
1445199190,2cyclictest0-21swapper/208:55:102
14451991815,2cyclictest5125-21kworker/u8:109:57:052
14451991815,2cyclictest29642-21kworker/u8:210:18:052
14451991815,2cyclictest16695-21kworker/u8:107:50:052
14449991815,2cyclictest11752-21kworker/u8:111:46:051
1444899184,12cyclictest4530-21latency_hist08:05:000
14454991714,2cyclictest8406-21kworker/u8:111:29:053
14454991714,2cyclictest31920-21kworker/u8:012:09:053
14454991714,2cyclictest24284-21kworker/u8:210:52:053
14451991714,2cyclictest8406-21kworker/u8:111:27:042
14451991714,2cyclictest8406-21kworker/u8:111:11:052
14451991714,2cyclictest5125-21kworker/u8:110:35:052
14451991714,2cyclictest4738-21kworker/u8:211:38:052
14451991714,2cyclictest4722-21kworker/u8:209:36:052
14451991714,2cyclictest31920-21kworker/u8:012:11:042
14451991714,2cyclictest20527-21kworker/u8:009:10:052
14451991714,2cyclictest20527-21kworker/u8:009:02:052
14451991714,2cyclictest19088-21kworker/u8:010:58:042
14451991714,2cyclictest19088-21kworker/u8:010:45:052
14449991714,2cyclictest15019-21kworker/u8:010:10:051
14449991714,2cyclictest15019-21kworker/u8:010:10:041
14454991613,2cyclictest29642-21kworker/u8:210:17:043
14454991613,2cyclictest20527-21kworker/u8:009:20:053
14454991613,2cyclictest16695-21kworker/u8:107:28:053
14454991613,2cyclictest15019-21kworker/u8:010:02:053
1445499161,13cyclictest31929-21ssh11:57:213
1445499161,13cyclictest22727-21ssh11:48:033
1445499160,14cyclictest19659-21ssh11:10:373
14451991613,2cyclictest7925-21kworker/u8:207:10:052
14451991613,2cyclictest6937-21kworker/u8:108:37:052
14451991613,2cyclictest653-21kworker/u8:208:09:042
14451991613,2cyclictest5125-21kworker/u8:110:42:052
14451991613,2cyclictest5125-21kworker/u8:110:25:042
14451991613,2cyclictest30716-21kworker/u8:008:11:052
14451991613,2cyclictest30716-21kworker/u8:008:02:052
14451991613,2cyclictest24284-21kworker/u8:210:54:052
14451991613,2cyclictest20527-21kworker/u8:008:43:052
14451991613,2cyclictest19088-21kworker/u8:011:08:052
14451991613,2cyclictest16695-21kworker/u8:107:39:052
14451991613,2cyclictest15019-21kworker/u8:010:01:052
14451991613,2cyclictest14556-21kworker/u8:212:17:042
1444999161,3cyclictest0-21swapper/112:35:151
14449991613,2cyclictest4738-21kworker/u8:211:39:051
14449991613,2cyclictest4722-21kworker/u8:209:27:051
14449991613,2cyclictest19088-21kworker/u8:011:06:051
14449991613,2cyclictest11752-21kworker/u8:111:54:051
1444899163,2cyclictest101ktimersoftd/010:53:580
1444899162,12cyclictest0-21swapper/009:50:490
14448991610,4cyclictest0-21swapper/010:10:180
14448991610,4cyclictest0-21swapper/010:10:180
1444899160,13cyclictest0-21swapper/007:40:140
1445499151,2cyclictest7458-21runrttasks12:36:523
14454991512,2cyclictest6937-21kworker/u8:108:32:053
14454991512,2cyclictest653-21kworker/u8:208:05:053
14454991512,2cyclictest24462-21kworker/u8:212:04:053
14454991512,2cyclictest19088-21kworker/u8:011:00:053
14454991512,2cyclictest15019-21kworker/u8:010:06:053
1445499150,14cyclictest0-21swapper/309:55:503
1445499150,13cyclictest27599-21ssh09:39:543
1445499150,13cyclictest0-21swapper/310:10:113
1445499150,13cyclictest0-21swapper/310:10:113
1445499150,13cyclictest0-21swapper/307:35:143
14451991512,2cyclictest6937-21kworker/u8:108:20:052
14451991512,2cyclictest4722-21kworker/u8:209:28:052
14451991512,2cyclictest4722-21kworker/u8:209:22:042
14451991512,2cyclictest31920-21kworker/u8:011:58:052
14451991512,2cyclictest30716-21kworker/u8:007:56:052
14451991512,2cyclictest29642-21kworker/u8:210:21:052
14451991512,2cyclictest21563-21kworker/u8:009:50:052
14451991512,2cyclictest21563-21kworker/u8:009:45:042
14451991512,2cyclictest20447-21kworker/u8:012:33:042
14451991512,2cyclictest20447-21kworker/u8:012:29:052
14451991512,2cyclictest20447-21kworker/u8:012:24:052
14451991512,2cyclictest16695-21kworker/u8:107:22:052
14451991512,2cyclictest15081-21kworker/u8:208:48:052
14451991512,2cyclictest15019-21kworker/u8:010:11:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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