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2025-11-29 - 14:53
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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 Sat Nov 29, 2025 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
50917399330,22cyclictest0-21swapper/000:39:490
50918399321,3cyclictest0-21swapper/322:40:133
50918399320,29cyclictest0-21swapper/323:00:193
509173993224,1cyclictest191rcu_preempt22:15:340
509183993127,2cyclictest0-21swapper/320:45:193
50918399311,5cyclictest820741-21cat23:40:003
50918399310,30cyclictest737530-21ssh22:30:373
509173993122,1cyclictest191rcu_preempt22:09:070
509173993122,1cyclictest191rcu_preempt22:09:060
50917399312,20cyclictest16-21ksoftirqd/021:30:160
509183993025,2cyclictest0-21swapper/321:35:013
50918399301,2cyclictest631690-21diskmemload23:17:143
50918399301,2cyclictest0-21swapper/320:30:143
50918399300,22cyclictest752709-21/usr/sbin/munin22:45:163
50917899300,2cyclictest0-21swapper/100:18:211
50917399300,3cyclictest0-21swapper/022:11:530
50917399300,24cyclictest663219-21kworker/0:1+events_power_efficient00:32:020
50917399300,21cyclictest0-21swapper/023:04:270
50918399291,3cyclictest0-21swapper/323:52:463
50918399291,2cyclictest631690-21diskmemload23:49:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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