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2026-04-21 - 16:14
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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 50 highest latencies:
System rackcslot6.osadl.org (updated Tue Apr 21, 2026 12:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
267740799380377,2cyclictest97550irq/166-enp0s3111:33:016
267740799379376,3cyclictest2974461-21kworker/6:107:23:026
267740799378376,1cyclictest97550irq/166-enp0s3110:45:026
267740799375373,1cyclictest97550irq/166-enp0s3111:07:026
267740799373371,1cyclictest97550irq/166-enp0s3111:13:026
267740799371369,1cyclictest2777156-21kworker/6:010:35:016
267740799370368,1cyclictest97550irq/166-enp0s3111:35:016
267740799370368,1cyclictest2974461-21kworker/6:107:15:026
267740799369367,1cyclictest97550irq/166-enp0s3111:01:026
267740799369367,1cyclictest97550irq/166-enp0s3109:45:016
267740799369367,1cyclictest0-21swapper/610:43:026
267740799369367,1cyclictest0-21swapper/607:35:026
267740799369367,1cyclictest0-21swapper/607:31:026
267740799369366,2cyclictest97550irq/166-enp0s3108:55:016
267740799369366,1cyclictest97550irq/166-enp0s3110:13:026
267740799368367,1cyclictest97550irq/166-enp0s3108:00:016
267740799368366,1cyclictest97550irq/166-enp0s3111:25:016
267740799368366,1cyclictest97550irq/166-enp0s3111:16:026
267740799368366,1cyclictest97550irq/166-enp0s3110:27:026
267740799368366,1cyclictest97550irq/166-enp0s3110:08:016
267740799368366,1cyclictest97550irq/166-enp0s3109:39:026
267740799368366,1cyclictest97550irq/166-enp0s3107:45:016
267740799368366,1cyclictest0-21swapper/611:55:016
267740799367366,1cyclictest97550irq/166-enp0s3108:43:016
267740799367366,1cyclictest97550irq/166-enp0s3108:11:016
267740799367365,1cyclictest97550irq/166-enp0s3108:15:016
267740799367365,1cyclictest0-21swapper/607:13:026
267740799366365,1cyclictest2777156-21kworker/6:009:59:016
267740799366365,1cyclictest0-21swapper/612:07:016
267740799366365,1cyclictest0-21swapper/610:19:026
267740799366365,1cyclictest0-21swapper/607:59:016
267740799366364,1cyclictest97550irq/166-enp0s3109:29:026
267740799365364,1cyclictest0-21swapper/612:31:026
267740799365364,1cyclictest0-21swapper/607:53:016
267740799365363,1cyclictest97550irq/166-enp0s3111:48:016
267740799365363,1cyclictest2974461-21kworker/6:108:07:016
267740799365363,1cyclictest0-21swapper/612:21:026
267740799365363,1cyclictest0-21swapper/609:41:026
267740799365363,1cyclictest0-21swapper/608:31:016
267740799364363,1cyclictest0-21swapper/610:57:026
267740799364362,1cyclictest2974461-21kworker/6:108:49:016
267740799363362,1cyclictest0-21swapper/609:51:016
267740799363361,1cyclictest0-21swapper/612:27:026
267740799361360,1cyclictest0-21swapper/609:03:016
267740799359358,1cyclictest0-21swapper/610:30:026
267740799359357,1cyclictest0-21swapper/612:02:026
267740799357356,1cyclictest2974461-21kworker/6:109:10:026
267740799357356,1cyclictest2855685-21kworker/6:012:10:026
267740099357355,1cyclictest2735339-21kworker/5:208:51:025
267737299357356,1cyclictest0-21swapper/109:23:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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