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2026-07-02 - 22:46
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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 10 highest latencies:
System rackcslot4.osadl.org (updated Thu Jul 02, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228211023850,29sleep00-21swapper/007:05:270
22827592247206,27sleep10-21swapper/107:07:371
2283121991431,121cyclictest2446991-21apt-config11:45:070
22831279913072,46cyclictest2446994-21apt-config11:45:071
179699950,3rtkit-daemon0-21swapper/012:12:311
228312799660,60cyclictest2461359-21cpuspeed12:05:151
179699660,28rtkit-daemon2434312-40unattended-upgr11:27:220
179699600,4rtkit-daemon1795-21rtkit-daemon09:47:590
2283121995822,27cyclictest2461351-21/usr/sbin/munin12:05:150
179699580,3rtkit-daemon1795-21rtkit-daemon07:22:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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