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2026-08-25 - 20:20
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack0slot0.osadl.org (updated Tue Aug 25, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2287121430,3sleep3971199cyclictest11:03:453
170422860,0sleep00-21swapper/010:03:560
24622790,1sleep62455-21sshd11:20:486
141442770,0sleep70-21swapper/710:10:217
121802760,0sleep60-21swapper/610:10:116
158332750,4sleep2970499cyclictest12:08:042
198332740,0sleep10-21swapper/110:04:371
51712730,1sleep3411ktimersoftd/310:08:323
277722720,1sleep10-21swapper/111:55:521
944727147,7sleep60-21swapper/607:09:296
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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