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2026-05-19 - 04:02
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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 Tue May 19, 2026 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2736221500,4sleep12985999cyclictest21:18:441
3099021400,0sleep530991-21tty21:18:565
1758621220,0sleep10-21swapper/123:28:281
1353721140,0sleep10-21swapper/122:16:151
1329021070,0sleep20-21swapper/223:02:332
31621050,0sleep20-21swapper/222:24:092
188422940,0sleep70-21swapper/722:04:357
205442890,1sleep5591ktimersoftd/522:45:445
77302840,0sleep50-21swapper/521:45:095
74092840,1sleep40-21swapper/422:58:504
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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