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2026-09-01 - 23:14
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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 Tue Sep 01, 2026 12:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37465924380,6sleep60-21swapper/607:05:266
37569799366365,1cyclictest0-21swapper/707:55:027
37565699365363,1cyclictest0-21swapper/207:44:012
37569099363358,2cyclictest372508-21kworker/6:207:44:026
37569799362360,1cyclictest0-21swapper/710:35:027
37569799361359,1cyclictest397336-21kworker/7:008:05:027
37569799360358,1cyclictest0-21swapper/712:23:027
37569799360358,1cyclictest0-21swapper/711:15:027
37569799360358,1cyclictest0-21swapper/710:15:027
37569799359358,1cyclictest0-21swapper/711:41:027
37569799358357,1cyclictest0-21swapper/709:07:017
37569799358356,1cyclictest566013-21kworker/7:212:35:017
37569799358356,1cyclictest508546-21kworker/7:011:45:017
37569799357355,1cyclictest508546-21kworker/7:010:59:027
37569799357355,1cyclictest421627-21kworker/7:210:07:027
37569799357355,1cyclictest330909-21kworker/7:207:25:027
37569799357354,1cyclictest508546-21kworker/7:011:03:027
37569799355353,1cyclictest508546-21kworker/7:011:31:027
37569799355353,1cyclictest508546-21kworker/7:010:51:027
37569799355353,1cyclictest421627-21kworker/7:210:41:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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