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2026-09-18 - 17:00
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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 10 highest latencies:
System rackdslot1.osadl.org (updated Fri Sep 18, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
570321750,4sleep1335699cyclictest09:35:001
3357998311,37cyclictest926-21cat08:15:112
3357998010,67cyclictest0-21swapper/208:50:002
335799717,61cyclictest4801-21mailstats09:30:252
3357996811,17cyclictest5643-21sed07:15:012
3357996810,16cyclictest29077-21grep10:25:112
134491670,19ptp4l5634-21apt-get08:25:090
3357996510,12cyclictest15541-21uniq11:05:152
3357996413,12cyclictest8043-21awk10:50:002
3357996312,11cyclictest9742-21head09:40:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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