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2026-08-25 - 07:34
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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 Tue Aug 25, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4118032991401,138cyclictest0-21swapper/621:25:096
4118029998728,58cyclictest91872-21idleruntime-cro00:25:003
4118029998224,58cyclictest1078-21lldpd21:07:503
4118029997133,38cyclictest0-21swapper/320:32:503
4118029997049,18cyclictest0-21swapper/323:07:123
4118029996930,39cyclictest0-21swapper/319:17:423
411802699680,68cyclictest0-21swapper/020:10:010
4118029996729,38cyclictest0-21swapper/321:45:203
411802999635,39cyclictest4120931-21munin-run19:15:023
4118029996143,0cyclictest0-21swapper/300:10:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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