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2026-06-28 - 20:11
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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 20 highest latencies:
System rackcslot6.osadl.org (updated Sun Jun 28, 2026 12:46:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2132215993960,395cyclictest0-21swapper/709:27:027
213221599395393,1cyclictest2277388-21kworker/7:211:36:027
213221599395393,1cyclictest2217221-21kworker/7:110:48:027
213221599394393,1cyclictest2277388-21kworker/7:212:14:027
213221599394393,1cyclictest2277388-21kworker/7:211:43:027
213221599394392,1cyclictest2277388-21kworker/7:211:22:027
213221599394392,1cyclictest2132056-21kworker/7:007:38:027
213221599393392,1cyclictest2217221-21kworker/7:111:07:027
2132215993930,393cyclictest0-21swapper/711:27:027
2132215993930,393cyclictest0-21swapper/709:18:027
2132215993930,1cyclictest0-21swapper/710:29:027
2132215993930,1cyclictest0-21swapper/710:29:027
213221599392391,1cyclictest2319514-21kworker/7:012:24:027
213221599392390,1cyclictest2132056-21kworker/7:008:38:027
213221599392390,1cyclictest2132056-21kworker/7:008:11:027
213221599391390,1cyclictest2217221-21kworker/7:110:33:027
213221599391390,1cyclictest2217221-21kworker/7:109:59:027
213221599391390,1cyclictest2132056-21kworker/7:008:46:027
213221599391389,1cyclictest2132056-21kworker/7:007:46:027
2132215993910,391cyclictest0-21swapper/708:31:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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