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2026-06-10 - 17:40
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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 rackeslot8.osadl.org (updated Wed Jun 10, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26658923100,3sleep1266588-21ssh10:34:341
26658923100,3sleep1266588-21ssh10:34:331
22529821150,1sleep20-21swapper/210:05:212
4172457993229,1cyclictest0-21swapper/312:10:003
4172457992522,1cyclictest0-21swapper/310:25:233
4172457992421,1cyclictest0-21swapper/309:00:003
4172457992320,1cyclictest0-21swapper/312:00:073
417245799222,15cyclictest335902-21taskset11:17:463
4172457992220,1cyclictest0-21swapper/310:40:013
4172457992219,1cyclictest0-21swapper/312:40:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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