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2025-05-09 - 05:50
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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 rackeslot8.osadl.org (updated Fri May 09, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
382096821050,2sleep00-21swapper/023:45:280
37345962350,1sleep00-21swapper/022:55:170
3410923992925,3cyclictest3474730-21sh20:00:012
3410921992825,2cyclictest3871939-21cron00:20:011
3410926992614,1cyclictest0-21swapper/322:45:213
3410926992413,1cyclictest0-21swapper/322:10:153
3410926992219,1cyclictest0-21swapper/300:05:003
3410926992118,1cyclictest0-21swapper/320:20:013
3410917992118,2cyclictest3577983-21idleruntime-cro21:20:010
3410917992114,5cyclictest0-21swapper/022:50:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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