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2025-11-17 - 07:49
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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 Mon Nov 17, 2025 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
378979099311,21cyclictest4077759-21apt-get23:20:133
378979099300,22cyclictest3795134-21systemd19:15:003
378979099291,20cyclictest3913304-21diskmemload22:28:213
378979099290,26cyclictest0-21swapper/323:07:353
378979099290,22cyclictest4172034-21ssh00:35:013
378979099290,20cyclictest3471731-21systemd-journal23:55:003
378979099280,21cyclictest3968722-21ntpq21:50:233
378979099280,20cyclictest0-21swapper/323:59:553
378979099280,19cyclictest0-21swapper/300:30:033
378979099280,19cyclictest0-21swapper/300:20:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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