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2026-08-12 - 11:22
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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 rackdslot1.osadl.org (updated Wed Aug 12, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
935321550,6sleep1814599cyclictest19:10:231
814699690,37cyclictest24049-21chrt19:41:372
814699680,31cyclictest25053-21chrt23:13:192
814699680,31cyclictest25053-21chrt23:13:192
814699670,38cyclictest14730-21chrt20:30:592
814699670,36cyclictest21904-21chrt19:38:522
814699661,28cyclictest26332-21chrt19:46:272
814699660,37cyclictest10819-21chrt22:43:092
814699660,37cyclictest10819-21chrt22:43:092
814699660,36cyclictest3324-21taskset21:18:582
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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