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2026-03-02 - 17:20
[ 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 #c, 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 100 highest latencies:
System rackcslot8s.osadl.org (updated Mon Mar 02, 2026 12:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
395226443,6sleep20-21swapper/207:09:022
324662640,0sleep6631rcuc/608:10:016
111391630,25ptp4l0-21swapper/007:05:210
111391620,31ptp4l0-21swapper/107:07:241
111391610,5ptp4l0-21swapper/407:06:144
322872590,0sleep30-21swapper/309:15:183
369325848,6sleep70-21swapper/707:05:467
209025634,7sleep30-21swapper/307:05:023
111391560,5ptp4l0-21swapper/507:09:125
367225231,16sleep60-21swapper/607:05:296
111391330,0ptp4l0-21swapper/110:37:501
111391310,0ptp4l0-21swapper/110:20:191
111391300,0ptp4l0-21swapper/711:37:157
111391300,0ptp4l0-21swapper/709:35:327
111391300,0ptp4l0-21swapper/311:24:073
111391300,0ptp4l0-21swapper/310:12:243
111391300,0ptp4l0-21swapper/111:58:521
111391290,4ptp4l0-21swapper/512:34:115
111391290,0ptp4l0-21swapper/710:00:137
111391290,0ptp4l0-21swapper/512:36:515
111391290,0ptp4l0-21swapper/510:18:475
111391290,0ptp4l0-21swapper/309:28:123
111391290,0ptp4l0-21swapper/110:18:311
111391290,0ptp4l0-21swapper/109:00:181
111391290,0ptp4l0-21swapper/108:40:171
111391280,3ptp4l561ktimersoftd/511:55:185
111391280,2ptp4l0-21swapper/509:31:565
111391280,1ptp4l14146-21forks11:50:131
111391280,0ptp4l0-21swapper/712:27:377
111391280,0ptp4l0-21swapper/708:11:307
111391280,0ptp4l0-21swapper/512:11:235
111391280,0ptp4l0-21swapper/510:51:375
111391280,0ptp4l0-21swapper/410:19:444
111391280,0ptp4l0-21swapper/409:26:084
111391280,0ptp4l0-21swapper/409:20:514
111391280,0ptp4l0-21swapper/311:02:073
111391280,0ptp4l0-21swapper/309:48:373
111391280,0ptp4l0-21swapper/112:31:181
111391280,0ptp4l0-21swapper/111:26:481
111391280,0ptp4l0-21swapper/109:32:101
111391270,0ptp4l0-21swapper/712:35:577
111391270,0ptp4l0-21swapper/711:51:397
111391270,0ptp4l0-21swapper/711:42:077
111391270,0ptp4l0-21swapper/511:45:045
111391270,0ptp4l0-21swapper/510:37:085
111391270,0ptp4l0-21swapper/412:14:504
111391270,0ptp4l0-21swapper/410:51:514
111391270,0ptp4l0-21swapper/311:42:123
111391270,0ptp4l0-21swapper/112:10:491
111391270,0ptp4l0-21swapper/110:47:501
111391270,0ptp4l0-21swapper/109:19:151
433099268,1cyclictest25874-21tr07:55:145
433099260,3cyclictest0-21swapper/507:35:155
111391260,0ptp4l0-21swapper/711:01:597
111391260,0ptp4l0-21swapper/708:06:577
111391260,0ptp4l0-21swapper/512:26:575
111391260,0ptp4l0-21swapper/510:29:285
111391260,0ptp4l0-21swapper/510:00:295
111391260,0ptp4l0-21swapper/508:40:125
111391260,0ptp4l0-21swapper/412:16:144
111391260,0ptp4l0-21swapper/409:50:034
111391260,0ptp4l0-21swapper/408:35:184
111391260,0ptp4l0-21swapper/312:25:153
111391260,0ptp4l0-21swapper/311:14:563
111391260,0ptp4l0-21swapper/309:31:113
111391260,0ptp4l0-21swapper/112:04:171
433099250,5cyclictest0-21swapper/507:51:175
111391250,1ptp4l4551-21sed09:20:201
111391250,1ptp4l32572-21irqstats11:30:177
111391250,1ptp4l14250-21diskstats09:35:113
111391250,1ptp4l0-21swapper/510:59:565
111391250,1ptp4l0-21swapper/510:59:565
111391250,0ptp4l0-21swapper/710:44:567
111391250,0ptp4l0-21swapper/709:41:177
111391250,0ptp4l0-21swapper/512:15:395
111391250,0ptp4l0-21swapper/510:20:175
111391250,0ptp4l0-21swapper/508:31:325
111391250,0ptp4l0-21swapper/411:53:054
111391250,0ptp4l0-21swapper/410:38:434
111391250,0ptp4l0-21swapper/307:15:163
111391250,0ptp4l0-21swapper/112:24:591
111391250,0ptp4l0-21swapper/111:15:541
111391250,0ptp4l0-21swapper/110:29:261
111391250,0ptp4l0-21swapper/109:56:491
111391250,0ptp4l0-21swapper/108:50:111
111391250,0ptp4l0-21swapper/108:35:111
111391250,0ptp4l0-21swapper/108:30:001
111391250,0ptp4l0-21swapper/011:35:000
111391250,0ptp4l0-21swapper/011:20:130
111391250,0ptp4l0-21swapper/011:11:330
111391250,0ptp4l0-21swapper/010:55:140
111391250,0ptp4l0-21swapper/010:55:140
111391240,1ptp4l4055-21grep10:05:160
111391240,1ptp4l29940-21latency_hist08:05:005
111391240,1ptp4l28809-21if_virbr009:55:140
111391240,1ptp4l28631-21ssh09:55:124
111391240,1ptp4l15937-21latency_hist08:45:000
111391240,1ptp4l14497-21irqrtprio11:05:177
111391240,1ptp4l10552-21missed_timers07:20:150
111391240,1ptp4l10451-21df12:30:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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