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2026-03-30 - 01:35
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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 Mar 29, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254039699300,20cyclictest2667267-21idleruntime-cro09:15:003
254039699291,1cyclictest2784429-21apt-get11:10:123
254039699280,19cyclictest2636869-21turbostat.cron08:44:593
254039199281,20cyclictest2774342-21apt-get11:00:122
254039199280,25cyclictest2688274-21apt-get09:35:142
254039199280,25cyclictest2688274-21apt-get09:35:132
254039699271,19cyclictest2839747-21ntpq12:00:183
254039699270,1cyclictest0-21swapper/308:47:133
254039699270,18cyclictest2856579-21grep12:20:153
254039699270,18cyclictest2856579-21grep12:20:153
254039199261,22cyclictest2713566-21apt-get10:00:122
254039199261,21cyclictest2693328-21apt-get09:40:122
254039199261,20cyclictest2764186-21apt-get10:50:122
254038699262,21cyclictest2830770-21apt-get11:55:131
254038699262,21cyclictest2667512-21apt-get09:15:111
254038699262,20cyclictest2611910-21apt-get08:20:131
2540396992519,3cyclictest2851032-21apt-get12:15:113
254039699250,1cyclictest0-21swapper/311:15:103
254039699250,1cyclictest0-21swapper/308:38:383
254039199252,21cyclictest2810551-21apt-get11:35:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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