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2026-04-29 - 13:26
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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
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Wed Apr 29, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2286899131128,2cyclictest29536-21bash00:28:373
2286899131128,2cyclictest29536-21bash00:28:373
22885999354,0cyclictest0-21swapper/500:28:385
22885999354,0cyclictest0-21swapper/500:28:385
22893998549,36cyclictest0-21swapper/600:28:376
22893998549,36cyclictest0-21swapper/600:28:376
21052790,0sleep30-21swapper/323:06:433
126572740,1sleep341-21ksoftirqd/322:24:543
118702700,0sleep0111rcuc/000:08:310
22842996138,1cyclictest29381-21grep00:28:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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