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2026-07-25 - 19:59
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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 rack8slot4.osadl.org (updated Sat Jul 25, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4069522243180,18sleep30-21swapper/307:08:553
4068812226166,19sleep60-21swapper/607:07:526
4067462225165,19sleep10-21swapper/107:05:541
4068732217188,19sleep70-21swapper/707:07:457
4069082214185,19sleep40-21swapper/407:08:144
4069332209181,18sleep20-21swapper/207:08:372
4067222208180,18sleep50-21swapper/507:05:345
4068932205173,22sleep00-21swapper/007:08:020
40826699320,31cyclictest524433-21apt-get10:39:566
408261993227,4cyclictest550943-21cron11:25:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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