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2026-05-08 - 21:47
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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
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Fri May 08, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314792750,2sleep7793599cyclictest09:42:157
157392700,0sleep3391rcuc/312:34:073
80872650,2sleep0787599cyclictest11:41:090
151112570,0sleep20-21swapper/209:29:362
25892560,0sleep60-21swapper/610:59:356
40412520,2sleep0787599cyclictest11:21:230
132652510,1sleep513264-21grepconf.sh12:02:535
748225026,8sleep60-21swapper/607:06:006
102192500,0sleep1758-21runrttasks10:44:161
758224926,8sleep30-21swapper/307:07:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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