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2026-01-09 - 09:29
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackeslot4.osadl.org (updated Fri Jan 09, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4172257993330,2cyclictest157206-21irqcore22:05:161
4172257993226,4cyclictest166600-21cron22:15:001
4172257993026,2cyclictest261-21systemd-journal22:20:001
417226399290,27cyclictest261-21systemd-journal22:14:593
4172263992818,8cyclictest300409-21cron00:25:003
417226399281,25cyclictest0-21swapper/323:55:113
417226399281,25cyclictest0-21swapper/321:25:123
417226399281,25cyclictest0-21swapper/319:45:123
417226399272,23cyclictest197693-21apt-get22:45:133
417226399272,22cyclictest130842-21apt-get21:40:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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