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2026-03-25 - 18:36
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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 rack3slot0.osadl.org (updated Wed Mar 25, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35049910996,1cyclictest49-21ksoftirqd/412:06:214
245782940,2sleep3350199cyclictest10:13:533
166232800,0sleep40-21swapper/411:45:494
80612770,1sleep38003-21sshd10:07:123
80612770,1sleep38003-21sshd10:07:123
3525997471,2cyclictest12996-21cp12:06:207
3522996231,0cyclictest0-21swapper/612:06:216
46372510,2sleep3350199cyclictest11:54:293
283092510,1sleep3350199cyclictest11:21:533
333325026,9sleep60-21swapper/607:06:196
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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