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2026-03-19 - 17:54
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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 50 highest latencies:
System rackcslot6.osadl.org (updated Thu Mar 19, 2026 12:46:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
325375899381379,1cyclictest3350831-21kworker/0:311:22:010
325375899381379,1cyclictest2265902-21kworker/0:107:14:010
3253758993811,380cyclictest0-21swapper/010:43:010
3253758993810,380cyclictest0-21swapper/007:28:010
3253758993800,380cyclictest0-21swapper/008:59:020
3253758993800,1cyclictest0-21swapper/012:12:030
325375899379378,1cyclictest3350831-21kworker/0:312:22:030
325375899379378,1cyclictest3350831-21kworker/0:311:19:010
325375899379378,1cyclictest3296342-21kworker/0:009:46:010
325375899379378,1cyclictest3296342-21kworker/0:009:36:020
325375899379378,1cyclictest3296342-21kworker/0:008:51:020
3253758993790,1cyclictest0-21swapper/012:09:020
3253758993790,1cyclictest0-21swapper/008:31:020
325380299372370,1cyclictest97550irq/166-enp0s3111:39:016
325380299372369,2cyclictest97550irq/166-enp0s3109:35:026
325380299370368,1cyclictest97550irq/166-enp0s3108:45:026
325380299369367,1cyclictest97550irq/166-enp0s3112:01:016
325380299369367,1cyclictest97550irq/166-enp0s3110:17:026
325380299368366,1cyclictest97550irq/166-enp0s3112:05:016
325380299368366,1cyclictest97550irq/166-enp0s3111:17:026
325380299367365,1cyclictest97550irq/166-enp0s3110:55:026
325380299367365,1cyclictest97550irq/166-enp0s3110:25:026
325380299367365,1cyclictest97550irq/166-enp0s3108:35:026
325380299367363,3cyclictest3335829-21kworker/6:210:49:016
325380299366364,1cyclictest97550irq/166-enp0s3108:01:016
325380299365364,1cyclictest0-21swapper/611:55:026
325380299364362,1cyclictest97550irq/166-enp0s3107:41:016
325380299364360,4cyclictest3335829-21kworker/6:210:05:016
325380299363362,1cyclictest97550irq/166-enp0s3108:50:026
325380299363361,1cyclictest97550irq/166-enp0s3112:39:016
325380299363361,1cyclictest97550irq/166-enp0s3111:00:026
325380299363361,1cyclictest97550irq/166-enp0s3108:57:026
325380299363361,1cyclictest97550irq/166-enp0s3108:11:016
325380299363361,1cyclictest97550irq/166-enp0s3107:27:016
325380299363361,1cyclictest97550irq/166-enp0s3107:12:016
325380299363361,1cyclictest0-21swapper/610:01:026
325380299363359,4cyclictest3335829-21kworker/6:212:15:026
325380299362361,1cyclictest97550irq/166-enp0s3109:23:016
325380299362361,1cyclictest97550irq/166-enp0s3107:39:016
325380299362360,1cyclictest97550irq/166-enp0s3112:31:016
325380299362360,1cyclictest97550irq/166-enp0s3111:21:026
325380299362360,1cyclictest97550irq/166-enp0s3110:52:016
325380299362360,1cyclictest97550irq/166-enp0s3108:25:016
325380299362360,1cyclictest97550irq/166-enp0s3108:08:016
325380299361360,1cyclictest97550irq/166-enp0s3110:35:026
325380299361360,1cyclictest97550irq/166-enp0s3109:17:016
325380299361359,1cyclictest97550irq/166-enp0s3109:56:016
325380299361359,1cyclictest97550irq/166-enp0s3109:50:016
325380299361359,1cyclictest97550irq/166-enp0s3109:03:026
325380299361358,1cyclictest97550irq/166-enp0s3112:25:026
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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