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2026-07-29 - 03:11
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rackcslot6.osadl.org (updated Tue Jul 28, 2026 12:46:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
525970993810,380cyclictest0-21swapper/608:05:026
52593299381380,1cyclictest97550irq/166-enp0s3107:19:021
52593299381379,2cyclictest97550irq/166-enp0s3108:43:021
52597099380379,1cyclictest0-21swapper/612:03:016
52597099380377,2cyclictest522800-21kworker/6:208:30:026
52593299380378,1cyclictest97550irq/166-enp0s3112:25:011
52593299380378,1cyclictest97550irq/166-enp0s3110:53:021
52593299380378,1cyclictest97550irq/166-enp0s3109:15:021
52597099379378,1cyclictest0-21swapper/610:37:026
52597099379377,1cyclictest522800-21kworker/6:209:39:026
52597099379377,1cyclictest522800-21kworker/6:208:37:026
52593299379378,1cyclictest97550irq/166-enp0s3109:55:011
52593299379378,1cyclictest97550irq/166-enp0s3109:35:021
52593299379377,1cyclictest97550irq/166-enp0s3110:47:021
52597099378376,1cyclictest653148-21kworker/6:210:44:026
52597099378376,1cyclictest522800-21kworker/6:208:19:026
52597099378376,1cyclictest522800-21kworker/6:208:19:026
52597099378376,1cyclictest0-21swapper/610:29:016
52593299378377,1cyclictest97550irq/166-enp0s3111:21:021
52593299378377,1cyclictest677221-21kworker/1:112:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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