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2026-06-13 - 01:09
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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 10 highest latencies:
System rackeslot5.osadl.org (updated Fri Jun 12, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
763399340,33cyclictest30011-21sh10:15:001
763899322,1cyclictest24822-21sh08:55:003
7638993128,2cyclictest16062-21basename09:45:003
763799310,13cyclictest41-21khungtaskd12:08:432
7633993028,1cyclictest1-21systemd07:25:011
7633993027,2cyclictest5807-21cron11:40:011
763199300,29cyclictest0-21swapper/011:45:010
7638992928,1cyclictest635-21rs:main3
7637992928,1cyclictest15201-21cron08:35:012
7633992927,1cyclictest12244-21sendmail-msp07:20:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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