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2026-07-04 - 09:54
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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 Sat Jul 04, 2026 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
399394499382380,1cyclictest4018830-21kworker/5:020:45:025
399394499379376,1cyclictest4018830-21kworker/5:000:13:025
399394499377375,1cyclictest4018830-21kworker/5:023:25:035
3993944993770,376cyclictest4018830-21kworker/5:022:51:035
399394499376374,1cyclictest99759-21kworker/5:100:21:035
399394499376374,1cyclictest4066287-21kworker/5:119:29:025
399394499376374,1cyclictest4018830-21kworker/5:023:07:025
3993944993760,375cyclictest4018830-21kworker/5:022:13:035
3993917993760,375cyclictest0-21swapper/221:41:022
399394499375373,1cyclictest4018830-21kworker/5:023:43:025
399394499375373,1cyclictest4018830-21kworker/5:023:33:025
399394499375373,1cyclictest4018830-21kworker/5:022:49:025
399394499375373,1cyclictest121113-21kworker/5:000:37:025
399394499375373,1cyclictest0-21swapper/523:00:025
399394499375373,1cyclictest0-21swapper/522:17:035
399394499375373,1cyclictest0-21swapper/522:17:025
399391799375373,1cyclictest0-21swapper/223:07:022
399394499374373,1cyclictest0-21swapper/522:04:035
399394499374372,1cyclictest0-21swapper/522:44:025
399394499374372,1cyclictest0-21swapper/521:33:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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