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2026-06-27 - 18:36
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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 Sat Jun 27, 2026 12:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
177506923930,10sleep549-21ksoftirqd/507:05:185
177384323840,4sleep6551rcuc/607:05:116
177660499358357,1cyclictest0-21swapper/712:35:027
177660499358357,1cyclictest0-21swapper/710:13:027
177660499357355,1cyclictest0-21swapper/712:07:027
177660499356355,1cyclictest0-21swapper/712:10:017
177660499356355,1cyclictest0-21swapper/711:41:037
177660499356355,1cyclictest0-21swapper/711:15:037
177660499356355,1cyclictest0-21swapper/710:53:037
177660499356354,1cyclictest0-21swapper/709:17:027
177660499356354,1cyclictest0-21swapper/709:08:027
177660499355354,1cyclictest1856786-21kworker/7:110:45:027
177660499355354,1cyclictest0-21swapper/710:06:027
177660499355354,1cyclictest0-21swapper/708:45:027
177660499355353,1cyclictest0-21swapper/710:19:017
177660499354353,1cyclictest0-21swapper/711:50:027
177660499354353,1cyclictest0-21swapper/710:32:017
177660499354353,1cyclictest0-21swapper/709:44:037
177660499354353,1cyclictest0-21swapper/709:25:027
177660499354353,1cyclictest0-21swapper/708:40:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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