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2026-06-29 - 18:38
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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 rack3slot6.osadl.org (updated Mon Jun 29, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311332930,6sleep131136-21grep08:50:341
26469999123,33cyclictest18696-21processes08:15:320
26472998636,9cyclictest26-21ksoftirqd/111:30:211
2589328623,16sleep10-21swapper/107:05:441
26469998243,24cyclictest14-21ksoftirqd/011:35:180
26469998041,27cyclictest14-21ksoftirqd/008:45:340
26469997838,24cyclictest14-21ksoftirqd/008:55:200
26469997539,23cyclictest14-21ksoftirqd/007:56:400
2473527531,30sleep00-21swapper/007:05:130
26469997442,23cyclictest14-21ksoftirqd/008:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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