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2025-12-18 - 08:51
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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 18, 2025 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2263205994643,2cyclictest3348153-21kworker/1:0+pm20:39:561
2263201993836,1cyclictest2345317-21kworker/0:2+pm20:39:560
226320799271,22cyclictest2538615-21apt-get23:40:112
2263211992622,2cyclictest2548727-21apt-get23:50:103
226320199262,4cyclictest2589724-21apt-get00:30:130
226320199262,3cyclictest2314868-21apt-get20:00:130
226320199262,22cyclictest2487965-21apt-get22:50:120
226320199262,22cyclictest2411535-21apt-get21:35:120
226320199262,22cyclictest2345628-21apt-get20:30:110
226320199262,21cyclictest2477853-21apt-get22:40:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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