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2026-05-28 - 04:45
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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 rack1slot2.osadl.org (updated Thu May 28, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1275124031,0sleep10-21swapper/119:23:131
1253824035,0sleep00-21swapper/019:20:440
1273023627,0sleep30-21swapper/319:22:593
1279623228,0sleep20-21swapper/219:23:422
339960,0migration/35443-21taskset23:21:093
339960,0migration/331856-21sh00:52:363
339960,0migration/331656-21irqcore00:34:043
339960,0migration/32972-21sh21:47:003
339960,0migration/328728-21sh22:01:073
339960,0migration/31894-21sh22:43:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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