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2026-03-24 - 12:21
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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 Tue Mar 24, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94039913896,41cyclictest15720-21df22:06:474
223692930,1sleep722367-21grepconf.sh00:02:537
9405997349,0cyclictest0-21swapper/622:06:476
108372720,1sleep010828-21sshd21:59:040
211942660,0sleep10-21swapper/122:23:471
140472650,0sleep20-21swapper/223:30:442
9402996459,3cyclictest15397-21cp22:06:473
940499610,61cyclictest0-21swapper/522:06:485
51772530,2sleep2940199cyclictest23:26:282
220412510,1sleep022010-21bash22:38:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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