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2026-08-10 - 11:26
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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 rackfslot7.osadl.org (updated Mon Aug 10, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34687199124106,18cyclictest0-21swapper/221:05:142
346873997838,39cyclictest0-21swapper/421:38:164
346873997838,39cyclictest0-21swapper/421:38:154
34687399677,59cyclictest0-21swapper/400:36:384
34687399657,19cyclictest0-21swapper/423:12:414
34687399657,19cyclictest0-21swapper/419:12:104
34687399657,19cyclictest0-21swapper/400:22:544
34687399646,19cyclictest0-21swapper/421:01:584
34687399645,22cyclictest0-21swapper/400:08:014
34687399634,19cyclictest0-21swapper/419:47:504
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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