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2025-12-17 - 09:12
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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 20 highest latencies:
System rackeslot4.osadl.org (updated Wed Dec 17, 2025 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3304692993936,2cyclictest3462692-21fwupd21:44:560
3304697993632,2cyclictest3462692-21fwupd21:44:562
3304694992926,2cyclictest0-21swapper/100:40:001
330470299272,22cyclictest3529360-21apt-get22:50:123
3304697992723,3cyclictest514-21in:imuxsock19:15:002
330470299260,24cyclictest3406572-21cron20:50:003
330470299260,21cyclictest631665-21kworker/u8:1+flush-259:023:25:123
330469799262,21cyclictest3406849-21apt-get20:50:132
3304692992619,5cyclictest3565552-21basename23:25:000
330469299261,22cyclictest3591609-21apt-get23:50:100
3304702992520,3cyclictest3350833-21apt-get19:55:113
330469799251,21cyclictest3524267-21apt-get22:45:122
330469799251,20cyclictest3514126-21apt-get22:35:122
330469799250,22cyclictest3356780-21tr20:00:142
3304692992521,3cyclictest3355617-21cut20:00:010
330469299251,22cyclictest3416937-21apt-get21:00:130
330469299251,22cyclictest3416937-21apt-get21:00:130
330469299250,24cyclictest261-21systemd-journal20:45:000
3304702992420,3cyclictest3356290-21apt-get20:00:113
3304702992416,5cyclictest3581462-21taskset23:40:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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