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2026-08-16 - 21:36
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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 Sun Aug 16, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1745321340,0sleep017434-21sshd12:03:550
1038721290,2sleep110377-21sshd11:28:291
1716021250,0sleep00-21swapper/009:39:120
3033621230,3sleep12396499cyclictest11:50:331
1891821220,3sleep30-21swapper/309:19:153
3090021180,2sleep230884-21sshd09:25:542
2368029633,50sleep10-21swapper/107:09:401
2349829333,56sleep30-21swapper/307:07:333
77322920,1sleep00-21swapper/011:48:410
312372920,1sleep031230-21bash12:10:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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