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2026-05-03 - 07:47
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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 Sun May 03, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3016952994642,2cyclictest3037452-21fwupd19:27:551
301695599326,18cyclictest3339152-21latency_hist00:25:002
3016955993225,5cyclictest3226731-21latency_hist22:35:002
301695599308,2cyclictest261-21systemd-journal19:55:002
301695599307,20cyclictest3104680-21taskset20:35:122
3016960992919,2cyclictest191rcu_preempt00:00:003
3016955992926,1cyclictest3252719-21sh23:00:012
3016955992925,3cyclictest3196985-21grep22:05:172
3016955992925,3cyclictest3196985-21grep22:05:162
3016952992826,1cyclictest3053526-21latency_hist19:45:001
301695099281,2cyclictest0-21swapper/023:10:130
301695299270,2cyclictest3309100-21apt-get23:55:131
3016950992721,3cyclictest3299033-21apt-get23:45:110
3016950992721,3cyclictest3196483-21apt-get22:05:110
3016950992721,3cyclictest3196483-21apt-get22:05:110
301695599264,7cyclictest3104510-21latency_hist20:35:002
3016955992624,1cyclictest3053379-21apt-config19:45:002
301695599261,21cyclictest3299033-21apt-get23:45:112
301695599260,23cyclictest3216688-21taskset22:25:112
301695299262,20cyclictest3278695-21apt-get23:25:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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