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2023-12-09 - 09:01
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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 rack3slot0.osadl.org (updated Sat Dec 09, 2023 00:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1798624926,8sleep30-21swapper/319:04:143
1787524623,8sleep50-21swapper/519:02:485
232552450,0sleep10-21swapper/122:22:061
232552450,0sleep10-21swapper/122:22:061
111212420,1sleep773-21ksoftirqd/723:27:077
111212420,1sleep773-21ksoftirqd/723:27:077
1809224137,1sleep10-21swapper/119:05:411
1808924128,9sleep70-21swapper/719:05:397
1801124130,8sleep60-21swapper/619:04:336
1798324028,8sleep00-21swapper/019:04:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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