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2026-05-27 - 05:00
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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 rackdslot0.osadl.org (updated Wed May 27, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2144399267,18cyclictest10454-21postgres22:36:102
2143899257,17cyclictest0-21swapper/123:20:001
21438992523,2cyclictest0-21swapper/123:30:141
21443992422,1cyclictest0-21swapper/200:30:012
2144399240,6cyclictest24697-21nvmesmart_nvme020:10:202
21443992320,2cyclictest11788-21cpu19:50:152
21443992320,2cyclictest11212-21sort21:40:172
21443992319,3cyclictest27822-21nfsd400:05:202
2143799230,5cyclictest0-21swapper/000:35:450
21443992219,2cyclictest3983-21H222:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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