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2026-07-16 - 16:57
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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
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Thu Jul 16, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
261219910334,63cyclictest27885-21grepconf.sh11:44:075
2612399840,83cyclictest26600-21kworker/u16:011:44:077
26122997342,1cyclictest0-21swapper/611:44:076
293922670,0sleep30-21swapper/311:53:183
49082570,2sleep02611699cyclictest09:46:120
91852560,0sleep69183-21sshd09:24:326
26116995423,0cyclictest0-21swapper/011:44:080
293442530,0sleep50-21swapper/509:11:015
152132530,0sleep30-21swapper/309:24:533
250412520,0sleep40-21swapper/409:41:524
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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