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2026-08-27 - 05:29
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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 rack5slot0.osadl.org (updated Thu Aug 27, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2921521310,5sleep31158099cyclictest23:47:163
2217821280,0sleep00-21swapper/023:58:150
1538521220,2sleep115379-21sshd23:54:471
1186621180,0sleep111865-21sshd22:50:111
1657721030,2sleep20-21swapper/223:46:072
247752970,2sleep10-21swapper/100:39:041
17542940,3sleep21157999cyclictest21:53:372
35462920,2sleep30-21swapper/323:39:033
63502910,2sleep26352-21sshd22:58:142
153342900,3sleep215333-21bash22:38:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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