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2026-06-01 - 03:28
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack8slot4.osadl.org (updated Mon Jun 01, 2026 00:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41922292232168,19sleep40-21swapper/419:08:304
41921562228166,19sleep50-21swapper/519:07:265
41921072224164,20sleep10-21swapper/119:06:421
41920402221162,20sleep20-21swapper/219:05:472
41922342212182,19sleep70-21swapper/719:08:337
41920742211181,20sleep00-21swapper/019:06:170
41922782210181,19sleep60-21swapper/619:09:136
41920412207143,52sleep30-21swapper/319:05:483
419258599370,32cyclictest27515-21apt-get20:00:096
419258599330,32cyclictest173409-21cron00:25:016
419258599330,29cyclictest1-21systemd20:00:016
4192581993227,4cyclictest0-21swapper/400:10:014
419257299320,31cyclictest68685-21chrt21:12:270
419258799310,30cyclictest91583-21apt-get21:55:097
4192585993128,3cyclictest0-21swapper/600:04:046
4192585993127,3cyclictest1-21systemd23:55:016
419258599310,30cyclictest0-21swapper/619:45:106
419258599310,30cyclictest0-21swapper/600:35:016
419258499310,3cyclictest1-21systemd19:35:015
4192581993127,4cyclictest0-21swapper/419:55:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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