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2025-12-04 - 11:31
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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 Thu Dec 04, 2025 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
403425599338,24cyclictest3471731-21systemd-journal21:45:003
4034247993229,2cyclictest0-21swapper/123:25:151
4034255992925,3cyclictest148137-21ls23:35:013
4034247992823,3cyclictest109582-21systemd-run23:05:011
403425599272,22cyclictest4122897-21apt-get20:35:133
403424799271,22cyclictest4143699-21apt-get20:55:141
403424799262,3cyclictest4154230-21apt-get21:05:121
403424799262,21cyclictest122813-21apt-get23:15:131
403424799261,4cyclictest145757-21cut23:30:181
403424799261,23cyclictest193030-21ps00:10:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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