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2026-10-08 - 19:14
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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 rackdslot0.osadl.org (updated Thu Oct 08, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2599799260,1cyclictest6794-21python310:25:011
25997992418,5cyclictest16877-21expr07:50:131
2599799241,22cyclictest10070-21kernelversion11:25:161
2599799233,19cyclictest0-21swapper/112:24:431
2599799232,7cyclictest0-21swapper/107:57:411
2599799232,20cyclictest26700-21chrt08:07:051
25997992315,7cyclictest17392-21processes10:40:191
2599799230,2cyclictest8773-21grep10:25:181
2599799230,2cyclictest31852-21munin-plugin-st09:15:001
2599799230,2cyclictest31210-21expr10:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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