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2026-04-17 - 22:42
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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 Fri Apr 17, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2977495993828,2cyclictest191rcu_preempt11:20:000
297749899282,21cyclictest3229296-21apt-get11:15:101
297749599281,24cyclictest261-21systemd-journal10:15:010
2977501992617,2cyclictest514-21in:imuxsock09:10:002
297750199261,21cyclictest2977708-21apt-get07:10:112
297749599262,22cyclictest3157912-21apt-get10:05:130
297749599262,21cyclictest3137135-21apt-get09:45:120
297750599251,21cyclictest3234377-21apt-get11:20:123
297750199251,20cyclictest3280022-21apt-get12:05:112
2977498992520,3cyclictest261-21systemd-journal07:15:001
297749899251,22cyclictest261-21systemd-journal08:49:591
297749899251,21cyclictest3259713-21apt-get11:45:111
297749599251,3cyclictest3203963-21apt-get10:50:130
297750599242,21cyclictest3209036-21apt-get10:55:123
2977505992422,1cyclictest3035512-21cron08:05:003
297750599240,22cyclictest3214555-21grep11:00:153
297750199242,2cyclictest3014979-21apt-get07:45:092
297750199241,20cyclictest3061165-21apt-get08:30:122
297750199241,20cyclictest2993791-21apt-get07:25:132
297750199240,4cyclictest3168533-21sort10:15:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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