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2026-02-16 - 06:52
[ 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 #5

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 rackeslot5s.osadl.org (updated Mon Feb 16, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2544599280,27cyclictest0-21swapper/223:00:012
2544599270,26cyclictest30336-21apt-get23:24:462
2544599270,26cyclictest17044-21turbostat21:05:012
2544599270,26cyclictest0-21swapper/200:15:022
2544599270,1cyclictest15242-21latency_hist00:10:012
2544199270,26cyclictest0-21swapper/122:27:541
2544599260,22cyclictest1459-21sh23:27:132
2544599260,21cyclictest0-21swapper/222:11:252
25441992623,3cyclictest19433-21diskmemload23:48:031
25441992620,5cyclictest6134-21apt-get21:29:451
2544199260,25cyclictest22822-21ssh23:16:231
2544099261,24cyclictest13297-21awk21:35:000
25447992523,1cyclictest0-21swapper/323:45:013
2544799250,24cyclictest0-21swapper/323:38:203
2544799250,24cyclictest0-21swapper/322:44:443
2544799250,24cyclictest0-21swapper/321:32:263
2544799250,1cyclictest0-21swapper/320:54:553
25445992523,2cyclictest0-21swapper/221:40:532
25445992520,4cyclictest32202-21ssh00:25:592
25445992519,5cyclictest0-21swapper/222:49:552
2544599250,24cyclictest0-21swapper/222:02:152
2544599250,21cyclictest7401-21ssh00:34:412
2544599250,21cyclictest19433-21diskmemload22:06:472
2544599250,21cyclictest16287-21ssh21:39:142
2544599250,21cyclictest13939-21ssh22:37:432
2544599250,21cyclictest0-21swapper/223:46:542
2544599250,1cyclictest28078-21cat21:49:502
25441992523,2cyclictest0-21swapper/123:38:481
25441992521,3cyclictest19433-21diskmemload23:44:571
25441992518,7cyclictest0-21swapper/121:09:441
2544199250,24cyclictest19433-21diskmemload22:12:371
2544199250,21cyclictest19433-21diskmemload23:07:141
2544199250,21cyclictest15952-21ssh21:38:441
2544199250,1cyclictest429-21ssh21:24:061
2544199250,0cyclictest0-21swapper/122:24:461
2544099250,25cyclictest0-21swapper/022:08:350
2544099250,24cyclictest9227-21apt-get23:04:450
2544099250,1cyclictest21083-21ssh21:12:100
25447992423,1cyclictest0-21swapper/322:29:253
25447992422,1cyclictest0-21swapper/321:28:023
2544799240,24cyclictest0-21swapper/322:03:293
2544799240,23cyclictest19433-21diskmemload22:17:593
2544799240,1cyclictest1311-21processes21:54:503
2544799240,1cyclictest0-21swapper/322:55:153
25445992421,2cyclictest783-21snmpd23:41:382
25445992420,3cyclictest0-21swapper/223:13:092
25445992420,3cyclictest0-21swapper/223:05:092
25445992420,3cyclictest0-21swapper/222:20:582
25445992419,4cyclictest0-21swapper/220:04:432
2544599240,24cyclictest0-21swapper/223:03:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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