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2026-07-17 - 04:20
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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 Jul 17, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
97821490,0sleep30-21swapper/321:59:043
2621521210,0sleep30-21swapper/321:45:173
2221321140,0sleep00-21swapper/022:36:510
1572421140,0sleep70-21swapper/720:55:217
77322900,1sleep5591ktimersoftd/522:42:485
178732900,0sleep50-21swapper/522:23:185
178732900,0sleep50-21swapper/522:23:185
78452860,0sleep20-21swapper/223:36:242
42452820,0sleep30-21swapper/323:53:003
236782820,0sleep50-21swapper/523:22:095
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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