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2026-03-11 - 19:57
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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 rack1slot8.osadl.org (updated Wed Mar 11, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11344996384,528cyclictest0-21swapper/007:10:120
1134599529394,58cyclictest0-21swapper/107:10:111
112492445421,16sleep00-21swapper/007:09:260
110972425403,16sleep10-21swapper/107:07:541
1134499409355,43cyclictest0-21swapper/007:29:590
1134599344289,39cyclictest0-21swapper/107:30:001
2286991300,32rtkit-daemon1568-21runrttasks10:55:080
2286991290,4rtkit-daemon2285-21rtkit-daemon12:00:190
2286991120,4rtkit-daemon2285-21rtkit-daemon12:12:201
2286991120,4rtkit-daemon2285-21rtkit-daemon08:39:311
2286991100,4rtkit-daemon2285-21rtkit-daemon12:01:051
2286991100,4rtkit-daemon2285-21rtkit-daemon08:58:311
2286991100,4rtkit-daemon2285-21rtkit-daemon07:47:251
2286991090,4rtkit-daemon2285-21rtkit-daemon11:55:591
2286991080,4rtkit-daemon2285-21rtkit-daemon08:43:451
2286991070,4rtkit-daemon2285-21rtkit-daemon12:38:391
2286991070,4rtkit-daemon2285-21rtkit-daemon12:29:441
2286991070,4rtkit-daemon2285-21rtkit-daemon12:17:441
2286991050,4rtkit-daemon2285-21rtkit-daemon11:16:431
2286991040,4rtkit-daemon2285-21rtkit-daemon10:22:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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