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2026-02-19 - 20:28
[ 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 #8, slot #4

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 rack8slot4s.osadl.org (updated Thu Feb 19, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26189322232175,18sleep40-21swapper/407:06:404
26189982221165,19sleep50-21swapper/507:07:375
26189802221163,46sleep70-21swapper/707:07:237
26190132218185,21sleep20-21swapper/207:07:502
26189402215174,26sleep30-21swapper/307:06:473
26189902214160,17sleep60-21swapper/607:07:306
26189382212173,24sleep10-21swapper/107:06:451
26191632210181,19sleep00-21swapper/007:09:570
2619415992622,3cyclictest0-21swapper/708:40:007
2619415992622,3cyclictest0-21swapper/708:39:597
261941599250,1cyclictest2737706-21idleruntime-cro10:35:007
261940699250,24cyclictest0-21swapper/411:35:114
2619404992523,1cyclictest0-21swapper/312:25:163
261940499250,23cyclictest0-21swapper/309:45:093
261941599240,21cyclictest0-21swapper/712:15:127
2619409992421,2cyclictest2628593-21sleep07:25:005
261940699240,22cyclictest2706451-21apt-get09:40:094
261940499240,23cyclictest0-21swapper/307:20:123
261940099240,2cyclictest2691742-21awk09:15:002
261940099240,23cyclictest2697869-21apt-get09:25:102
261939599240,23cyclictest2746306-21awk10:50:000
2619415992321,1cyclictest2778064-21awk11:45:007
261941599230,22cyclictest0-21swapper/708:00:007
261941599230,22cyclictest0-21swapper/707:35:007
2619411992321,1cyclictest0-21swapper/607:10:166
2619411992320,2cyclictest2764185-21apt-get11:20:126
261941199230,22cyclictest0-21swapper/609:35:006
261941199230,21cyclictest0-21swapper/612:20:006
2619409992322,0cyclictest0-21swapper/510:40:105
261940999230,22cyclictest0-21swapper/507:35:115
2619404992322,1cyclictest0-21swapper/308:20:003
2619404992321,1cyclictest2706006-21turbostat.cron09:40:003
2619404992321,1cyclictest0-21swapper/307:35:113
2619404992321,1cyclictest0-21swapper/307:15:003
261940499230,2cyclictest363-21systemd-journal11:55:003
2619400992322,1cyclictest2764185-21apt-get11:20:122
261940099230,23cyclictest0-21swapper/212:40:002
261940099230,22cyclictest0-21swapper/211:45:122
261940099230,22cyclictest0-21swapper/207:55:102
2619398992321,1cyclictest0-21swapper/107:15:001
261939899230,23cyclictest0-21swapper/110:40:101
261939899230,22cyclictest2763766-21basename11:20:001
261939899230,22cyclictest0-21swapper/107:25:001
2619395992322,1cyclictest0-21swapper/011:55:000
261939599230,1cyclictest2738137-21apt-get10:35:120
2619415992220,1cyclictest2752701-21apt-get11:00:127
2619415992219,3cyclictest0-21swapper/708:30:007
2619415992218,3cyclictest2634710-21apt-get07:35:117
261941599220,3cyclictest2799099-21diskstats12:20:137
261941599220,21cyclictest0-21swapper/711:30:117
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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