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2026-08-30 - 20:56
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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 rackeslot3.osadl.org (updated Sun Aug 30, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
233183599650,64cyclictest0-21swapper/111:25:011
233183599630,62cyclictest0-21swapper/111:12:201
233183599630,62cyclictest0-21swapper/108:50:471
233183599630,62cyclictest0-21swapper/108:20:491
233183599630,62cyclictest0-21swapper/108:07:351
2331835996260,1cyclictest0-21swapper/111:35:421
233183599620,61cyclictest0-21swapper/107:33:551
2331835996159,1cyclictest0-21swapper/107:17:101
2331835996040,18cyclictest2155532-1kworker/1:2H07:55:181
2331835995957,1cyclictest0-21swapper/109:10:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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