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2025-02-07 - 09:55
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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 Fri Feb 07, 2025 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
468621630,4sleep71059999cyclictest22:42:307
2425321580,0sleep70-21swapper/722:31:177
2029921540,0sleep50-21swapper/522:47:335
2029921540,0sleep50-21swapper/522:47:335
510921470,0sleep41057899cyclictest22:09:334
100152910,0sleep10-21swapper/122:53:061
100152910,0sleep10-21swapper/122:53:061
43032900,1sleep60-21swapper/622:32:356
204972840,0sleep10-21swapper/100:07:131
69512810,1sleep06943-21sshd22:36:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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