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2026-02-08 - 22:49
[ 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 #0, slot #3

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 rack0slot3s.osadl.org (updated Sun Feb 08, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8747352273234,30sleep70-21swapper/719:05:597
8748452268230,29sleep60-21swapper/619:07:286
8747132265215,19sleep00-21swapper/019:05:440
8746992265238,17sleep40-21swapper/419:05:324
8749962264217,37sleep30-21swapper/319:09:093
8749012263223,16sleep20-21swapper/219:08:032
8749802256216,16sleep10-21swapper/119:08:591
8749352243216,17sleep50-21swapper/519:08:325
87535299440,44cyclictest0-21swapper/021:50:580
875352993913,24cyclictest0-21swapper/022:50:250
875352993722,14cyclictest515-21systemd-journal23:40:100
875352993623,12cyclictest515-21systemd-journal21:44:170
875352993621,14cyclictest515-21systemd-journal23:35:550
875352993619,12cyclictest973296-21http_loadtime22:05:150
875352993519,14cyclictest1034932-21chrt23:57:250
87535299350,34cyclictest0-21swapper/020:50:200
87535299350,33cyclictest0-21swapper/022:46:570
87535299350,33cyclictest0-21swapper/021:23:240
87535299350,33cyclictest0-21swapper/021:06:040
87535299350,33cyclictest0-21swapper/020:38:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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