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2025-09-15 - 20:24
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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 Mon Sep 15, 2025 12:46:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
389649599376373,2cyclictest0-21swapper/009:56:010
389649599371370,1cyclictest0-21swapper/009:15:020
389649599370368,1cyclictest3893024-21kworker/0:008:00:020
389649599370368,1cyclictest3893024-21kworker/0:007:55:020
389649599369368,1cyclictest0-21swapper/009:32:010
389649599369368,1cyclictest0-21swapper/008:42:010
389649599369367,1cyclictest3893024-21kworker/0:009:02:010
389649599369367,1cyclictest3893024-21kworker/0:007:23:020
389649599368366,1cyclictest3996685-21kworker/0:310:42:010
389649599367366,1cyclictest3996685-21kworker/0:310:45:020
389649599366365,1cyclictest0-21swapper/008:58:020
389649599366365,1cyclictest0-21swapper/008:58:010
389654499365364,1cyclictest4167203-21kworker/7:208:18:017
389649599365364,1cyclictest0-21swapper/011:01:020
389649599365363,1cyclictest3996685-21kworker/0:311:16:020
389649599365363,1cyclictest3996685-21kworker/0:310:25:020
389649599365363,1cyclictest3996685-21kworker/0:310:25:020
389649599364363,1cyclictest3996685-21kworker/0:309:54:020
389649599364363,1cyclictest3893024-21kworker/0:007:17:020
389654499363362,1cyclictest3990701-21kworker/7:011:12:017
389649599363362,1cyclictest0-21swapper/010:07:030
389649599363361,1cyclictest3996685-21kworker/0:311:48:020
389649599363361,1cyclictest3893024-21kworker/0:009:13:020
389649599362361,1cyclictest3893024-21kworker/0:007:40:020
389649599362361,1cyclictest3893024-21kworker/0:007:14:030
389649599362361,1cyclictest0-21swapper/011:35:030
389649599361360,1cyclictest3893024-21kworker/0:009:35:020
389649599361359,1cyclictest3996685-21kworker/0:312:02:020
389649599361359,1cyclictest3996685-21kworker/0:310:59:020
389649599361359,1cyclictest3893024-21kworker/0:009:24:020
389649599360358,1cyclictest4087922-21kworker/0:112:20:020
389649599360358,1cyclictest3893024-21kworker/0:007:49:020
389649599360358,1cyclictest0-21swapper/009:41:020
389649599360358,1cyclictest0-21swapper/008:17:020
389649599359358,1cyclictest3996685-21kworker/0:310:18:020
389649599359357,1cyclictest3996685-21kworker/0:312:11:030
389649599358357,1cyclictest3996685-21kworker/0:311:43:020
389649599358357,1cyclictest3996685-21kworker/0:310:14:020
389649599358357,1cyclictest3893024-21kworker/0:008:07:030
389649599358356,1cyclictest3996685-21kworker/0:310:34:030
389649599358356,1cyclictest3893024-21kworker/0:008:54:020
389649599358356,1cyclictest3893024-21kworker/0:008:34:020
389649599357356,1cyclictest3893024-21kworker/0:008:14:020
389654499356355,1cyclictest4167203-21kworker/7:208:50:017
389654499356355,1cyclictest3990701-21kworker/7:010:04:017
389654499355352,2cyclictest97850irq/166-enp0s3109:56:027
389654499354353,1cyclictest3990701-21kworker/7:009:50:027
389452823540,4sleep5481rcuc/507:05:195
389654499352351,1cyclictest3990701-21kworker/7:011:24:017
389654499352350,1cyclictest97850irq/166-enp0s3112:14:017
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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