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2026-06-13 - 00:27
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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 Fri Jun 12, 2026 12:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
58116999376374,1cyclictest696280-21kworker/5:111:01:025
58116999374372,1cyclictest696280-21kworker/5:110:39:025
58116999373372,1cyclictest696280-21kworker/5:110:29:025
58116999372371,1cyclictest645134-21kworker/5:009:17:025
58116999372371,1cyclictest536162-21kworker/5:108:31:025
58116999370369,1cyclictest536162-21kworker/5:108:53:025
58116999367365,1cyclictest0-21swapper/508:45:025
58116999366365,1cyclictest0-21swapper/507:21:025
58116999366364,1cyclictest536162-21kworker/5:108:35:025
58116999366364,1cyclictest0-21swapper/510:43:025
58116999365364,1cyclictest0-21swapper/512:17:025
58116999365364,1cyclictest0-21swapper/509:12:025
58116999364363,1cyclictest0-21swapper/512:03:025
58116999364363,1cyclictest0-21swapper/511:32:025
58116999364363,1cyclictest0-21swapper/510:08:025
58116999364363,1cyclictest0-21swapper/508:02:025
58116999363362,1cyclictest0-21swapper/508:27:025
58116999363362,1cyclictest0-21swapper/508:11:025
58116999362361,1cyclictest759449-21kworker/5:012:10:025
58116999362361,1cyclictest0-21swapper/509:33:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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