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2026-04-25 - 22:47
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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 Sat Apr 25, 2026 12:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
412417299367365,1cyclictest0-21swapper/308:00:023
412417299365364,1cyclictest4114997-21kworker/3:009:30:023
412417299365364,1cyclictest0-21swapper/310:23:023
412417299365363,1cyclictest0-21swapper/312:01:023
412417299364363,1cyclictest4114997-21kworker/3:010:33:023
412417299364363,1cyclictest0-21swapper/307:20:033
412417299363362,1cyclictest4114997-21kworker/3:010:51:033
412417299363362,1cyclictest0-21swapper/309:20:023
412417299363362,1cyclictest0-21swapper/307:25:033
412417299363361,1cyclictest0-21swapper/310:10:023
412414799363360,1cyclictest90593-21systemd-userwor11:39:020
412417299362361,1cyclictest4114997-21kworker/3:007:10:023
412417299362361,1cyclictest0-21swapper/310:06:023
412417299362361,1cyclictest0-21swapper/308:55:023
412417299361360,1cyclictest4114997-21kworker/3:010:15:023
412417299361360,1cyclictest0-21swapper/310:29:033
412417299361359,1cyclictest0-21swapper/312:19:023
412417299361359,1cyclictest0-21swapper/311:51:023
412417299361359,1cyclictest0-21swapper/309:00:023
412417299360359,1cyclictest96723-21kworker/3:212:38:023
412417299359358,1cyclictest0-21swapper/311:37:023
412417299359358,1cyclictest0-21swapper/311:33:023
412417299359357,1cyclictest0-21swapper/309:43:023
412417299359357,1cyclictest0-21swapper/309:28:023
412417299359357,1cyclictest0-21swapper/309:09:023
412417299359357,1cyclictest0-21swapper/307:39:023
412417299358357,1cyclictest0-21swapper/310:47:023
412417299358357,1cyclictest0-21swapper/310:38:033
412417299358357,1cyclictest0-21swapper/310:38:023
412417299358357,1cyclictest0-21swapper/309:53:023
412417299358357,1cyclictest0-21swapper/307:57:023
412417299358356,1cyclictest4114997-21kworker/3:011:22:023
412417299358356,1cyclictest0-21swapper/309:17:023
412417299358356,1cyclictest0-21swapper/308:53:023
412414799358357,1cyclictest72673-21kworker/0:012:15:020
412414799358357,1cyclictest0-21swapper/010:55:020
412417299357356,1cyclictest4114997-21kworker/3:011:17:023
412417299357356,1cyclictest0-21swapper/308:48:033
412414799357356,1cyclictest0-21swapper/010:28:030
412417299356355,1cyclictest0-21swapper/312:23:023
412417299356355,1cyclictest0-21swapper/310:41:023
412414799355354,1cyclictest0-21swapper/010:45:020
412414799355354,1cyclictest0-21swapper/008:10:030
412414799355354,1cyclictest0-21swapper/007:30:020
412414799355353,1cyclictest0-21swapper/011:20:020
412414799354353,1cyclictest0-21swapper/008:05:030
412414799353352,1cyclictest0-21swapper/008:50:020
412414799353351,1cyclictest0-21swapper/009:35:020
412414799352351,1cyclictest0-21swapper/011:45:020
412414799352351,1cyclictest0-21swapper/010:35:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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