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2026-09-11 - 22:58
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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 Fri Sep 11, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136159918431736,94cyclictest0-21swapper/007:45:190
1361599851780,52cyclictest0-21swapper/007:10:100
1361699794721,49cyclictest0-21swapper/107:10:101
132892604581,16sleep10-21swapper/107:07:061
1361699362261,16cyclictest27037-21strings07:45:181
136169911513,66cyclictest0-21swapper/109:29:591
2286991090,5rtkit-daemon2285-21rtkit-daemon10:18:041
2286991070,4rtkit-daemon2285-21rtkit-daemon12:33:571
13616999716,66cyclictest0-21swapper/107:23:001
13616999514,74cyclictest0-21swapper/112:21:581
13616998913,65cyclictest0-21swapper/109:02:591
262492880,4sleep026252-21sed10:10:300
13616998827,47cyclictest0-21swapper/107:26:591
228699840,4rtkit-daemon2285-21rtkit-daemon10:43:350
13616998211,55cyclictest0-21swapper/111:51:591
228699810,4rtkit-daemon2285-21rtkit-daemon09:15:190
228699810,39rtkit-daemon2285-21rtkit-daemon12:26:271
13615998018,56cyclictest0-21swapper/008:09:010
228699780,36rtkit-daemon2285-21rtkit-daemon07:35:171
228699770,4rtkit-daemon2285-21rtkit-daemon12:36:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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