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2025-11-19 - 08:37
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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 rack0slot0.osadl.org (updated Wed Nov 19, 2025 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2255421490,4sleep4720499cyclictest22:58:344
2181721490,4sleep0718299cyclictest22:25:120
1943321350,0sleep70-21swapper/723:44:547
2582121290,0sleep10-21swapper/122:55:261
1482121260,4sleep1718699cyclictest22:37:471
1549221120,1sleep21036-21runrttasks22:34:362
226172950,1sleep122622-21gltestperf19:40:141
119702890,1sleep50-21swapper/523:24:085
226802880,1sleep60-21swapper/622:01:546
316312840,0sleep30-21swapper/300:19:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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