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2025-12-18 - 17:21
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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 Thu Dec 18, 2025 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1745247995753,2cyclictest2004859-21fwupd11:23:491
1745253993117,2cyclictest1821774-21cron08:25:003
1745253992723,2cyclictest0-21swapper/308:50:173
1745253992718,2cyclictest0-21swapper/310:05:113
174525399261,4cyclictest1989870-21apt-get11:10:133
174525399261,21cyclictest1852402-21apt-get08:55:103
174525399261,21cyclictest1832138-21apt-get08:35:143
174525199261,23cyclictest261-21systemd-journal08:35:002
174525199260,24cyclictest1964278-21awk10:45:002
1745247992623,2cyclictest0-21swapper/107:25:161
174525399251,22cyclictest1877507-21idleruntime-cro09:20:003
174525399251,21cyclictest1750537-21apt-get07:15:103
174525399251,20cyclictest2031062-21apt-get11:50:133
174525399251,20cyclictest1974711-21apt-get10:55:113
174525399250,22cyclictest1979785-21taskset11:00:133
174525199252,21cyclictest2020925-21apt-get11:40:142
1745251992521,3cyclictest261-21systemd-journal11:30:002
174525199251,22cyclictest261-21systemd-journal11:35:002
174524799251,20cyclictest1929212-21apt-get10:10:131
1745253992420,2cyclictest2004695-21apt-get11:23:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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