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2026-02-18 - 07:41
[ 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 #2, slot #7

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 20 highest latencies:
System rack2slot7s.osadl.org (updated Tue Feb 17, 2026 19:55:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
395359998169,9cyclictest1217716-21sh18:10:382
395357996555,5cyclictest1217848-21sh18:10:380
395358996455,5cyclictest1217862-21expr18:10:381
395358996250,8cyclictest705248-21execl17:50:131
395359996144,13cyclictest0-21swapper/218:01:552
395357996140,18cyclictest684930-21sh17:42:450
395357996033,17cyclictest151ktimers/017:35:190
395357995931,25cyclictest1187981-21sh18:09:220
395357995931,25cyclictest1187981-21sh18:09:220
395357995428,5cyclictest705245-21Run17:50:080
395359995345,3cyclictest0-21swapper/217:40:182
395359995245,4cyclictest1203865-21sh18:10:012
395359995245,4cyclictest1203865-21sh18:10:012
395357995224,8cyclictest704882-21execl17:50:030
395358994940,6cyclictest631747-21sh17:40:291
395358994841,4cyclictest1168879-21multi.sh18:08:361
395358994841,4cyclictest1168879-21multi.sh18:08:361
395358994536,6cyclictest3606335-21systemd-logind18:30:021
395357994332,6cyclictest0-21swapper/017:15:240
395358994235,4cyclictest704882-21execl17:49:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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