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2026-08-09 - 08:36
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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 rack1slot2.osadl.org (updated Sun Aug 09, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251624937,0sleep00-21swapper/019:25:050
347124637,0sleep10-21swapper/119:28:591
328724233,0sleep20-21swapper/219:27:002
334423731,0sleep30-21swapper/319:27:373
4160,0ktimersoftd/00-21swapper/022:31:410
36229966,0cyclictest21688-21kworker/0:000:58:300
36229960,0cyclictest20990-21python20:00:090
35160,0ktimersoftd/30-21swapper/322:31:413
339960,0migration/332029-21sh00:29:293
339960,0migration/326812-21idleruntime21:15:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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