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2026-05-02 - 00:02
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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 rackdslot0.osadl.org (updated Fri May 01, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2182399236,13cyclictest0-21swapper/111:45:061
2182299230,9cyclictest0-21swapper/011:30:040
2182299230,20cyclictest0-21swapper/011:40:130
2182499220,21cyclictest843-21systemd-network12:12:262
2182399224,9cyclictest0-21swapper/111:15:041
2182299220,4cyclictest0-21swapper/007:27:380
2182299220,18cyclictest0-21swapper/012:08:100
2182299213,3cyclictest2850-21gmain07:49:100
2182299210,3cyclictest0-21swapper/010:24:460
21824992016,3cyclictest0-21swapper/208:52:392
2182399204,15cyclictest0-21swapper/110:36:081
21822992016,3cyclictest0-21swapper/008:43:070
21824991919,0cyclictest0-21swapper/211:21:102
2182499191,14cyclictest455-21plymouthd08:50:002
21823991915,2cyclictest20142-21nfsd411:50:161
21822991912,3cyclictest0-21swapper/010:58:100
2182299190,5cyclictest0-21swapper/009:14:380
21824991816,1cyclictest18474-21nfsd410:50:142
21824991816,1cyclictest0-21swapper/208:00:192
21824991815,2cyclictest31057-21cron11:15:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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