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2026-06-20 - 20:45
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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 Jun 20, 2026 12:46:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
343984999374373,1cyclictest3491817-21kworker/3:208:45:013
343987099373372,1cyclictest0-21swapper/611:55:026
343987099373371,1cyclictest0-21swapper/612:15:016
343987099373371,1cyclictest0-21swapper/612:10:016
343987099372371,1cyclictest3698698-21kworker/6:107:10:026
343987099372371,1cyclictest0-21swapper/607:45:026
343987099371370,1cyclictest3570033-21kworker/6:011:02:026
343987099371370,1cyclictest3442792-21kworker/6:208:40:026
343984999371370,1cyclictest49858-21kworker/3:107:24:023
343984999371370,1cyclictest0-21swapper/307:17:023
343984999371369,1cyclictest0-21swapper/311:41:023
343983199371368,1cyclictest3467749-21kworker/1:010:08:011
343987099370369,1cyclictest3503845-21kworker/6:009:28:016
343987099370369,1cyclictest3442792-21kworker/6:208:20:016
343987099370368,1cyclictest0-21swapper/608:15:016
343984999370369,1cyclictest3615156-21kworker/3:012:03:013
343984999370369,1cyclictest3552392-21kworker/3:111:15:023
343984999370369,1cyclictest3455728-21kworker/3:207:50:023
343984999370369,1cyclictest0-21swapper/309:40:023
343984999370369,1cyclictest0-21swapper/307:55:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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