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2025-11-28 - 10:35
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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 Nov 28, 2025 00:45:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3069821070,0sleep30-21swapper/322:06:053
253822810,1sleep7761rcuc/723:36:417
121972800,0sleep70-21swapper/723:41:547
67042780,0sleep70-21swapper/721:21:377
67392730,0sleep40-21swapper/400:07:404
310602730,0sleep40-21swapper/421:20:454
275562730,0sleep50-21swapper/522:18:495
178372720,1sleep50-21swapper/521:42:115
165952720,1sleep3411ktimersoftd/323:39:103
121822720,0sleep40-21swapper/422:49:504
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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