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2026-04-06 - 18:08
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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 Mon Apr 06, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
142862860,0sleep3391rcuc/310:36:523
134082740,1sleep213407-21grepconf.sh11:53:072
71242730,2sleep52660599cyclictest10:38:225
96362540,1sleep69637-21grep10:23:336
52162520,2sleep22660299cyclictest10:01:032
53502510,0sleep20-21swapper/211:32:092
53502510,0sleep20-21swapper/211:32:092
2645025126,9sleep60-21swapper/607:05:546
217932510,0sleep20-21swapper/211:07:022
33592490,0sleep50-21swapper/509:08:365
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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