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2026-05-15 - 10:36
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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 100 highest latencies:
System rackcslot6.osadl.org (updated Fri May 15, 2026 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
265667399381379,1cyclictest2659605-21kworker/4:220:15:024
265667399381379,1cyclictest0-21swapper/420:45:024
265667399381379,1cyclictest0-21swapper/420:35:014
265667399381379,1cyclictest0-21swapper/419:43:024
265667399380378,1cyclictest2843621-21kworker/4:122:57:024
265667399380378,1cyclictest0-21swapper/421:43:014
2656673993801,1cyclictest0-21swapper/422:13:024
2656673993800,379cyclictest0-21swapper/423:35:014
2656673993800,379cyclictest0-21swapper/423:23:024
2656673993800,379cyclictest0-21swapper/422:49:024
2656673993800,1cyclictest0-21swapper/422:31:024
2656673993800,1cyclictest0-21swapper/422:31:024
265667399379378,1cyclictest2843621-21kworker/4:123:03:024
265667399379378,1cyclictest0-21swapper/421:47:024
265667399379377,1cyclictest2678552-21kworker/4:019:47:024
265667399378377,1cyclictest2952098-21kworker/4:000:37:014
265667399378377,1cyclictest0-21swapper/421:24:024
265667399378376,1cyclictest0-21swapper/400:14:024
265667399377376,1cyclictest0-21swapper/421:19:024
265667399377375,1cyclictest2659605-21kworker/4:220:41:024
265667399376374,1cyclictest2659605-21kworker/4:219:37:024
265667399376374,1cyclictest2659605-21kworker/4:219:37:014
265667399375374,1cyclictest2843621-21kworker/4:100:07:014
265667399375374,1cyclictest2659605-21kworker/4:222:41:024
265667399375373,1cyclictest0-21swapper/423:28:024
265667399374373,1cyclictest2952098-21kworker/4:000:24:024
265667399374373,1cyclictest2843621-21kworker/4:123:31:014
265667399374373,1cyclictest0-21swapper/400:02:014
265667399374372,1cyclictest2659605-21kworker/4:222:03:024
265667399374372,1cyclictest0-21swapper/419:56:024
265667399373372,1cyclictest2952098-21kworker/4:000:17:024
265667399373372,1cyclictest2659605-21kworker/4:222:39:024
265667399373372,1cyclictest0-21swapper/419:17:024
265667399373371,1cyclictest0-21swapper/419:28:014
265667399373371,1cyclictest0-21swapper/419:24:024
2656649993730,372cyclictest0-21swapper/123:39:011
265667399372370,1cyclictest0-21swapper/420:24:024
265667399372370,1cyclictest0-21swapper/420:10:024
265667399371369,1cyclictest2843621-21kworker/4:123:40:024
265667399371369,1cyclictest2659605-21kworker/4:221:07:024
265667399371369,1cyclictest2659605-21kworker/4:221:07:014
265667399370369,1cyclictest2659605-21kworker/4:222:20:024
265667399369368,1cyclictest0-21swapper/400:26:024
265667399368366,1cyclictest2843621-21kworker/4:123:48:024
265667399367366,1cyclictest2843621-21kworker/4:123:09:014
265667399367366,1cyclictest0-21swapper/423:16:024
265667399364363,1cyclictest2659605-21kworker/4:220:58:024
265667399364363,1cyclictest2659605-21kworker/4:220:54:024
265667399363362,1cyclictest2659605-21kworker/4:219:32:014
265667399363362,1cyclictest0-21swapper/420:33:024
265667399362361,1cyclictest2659605-21kworker/4:219:51:024
265666699357355,1cyclictest2812712-21kworker/3:223:11:023
265666699355354,1cyclictest2739840-21kworker/3:021:55:013
265666699351349,1cyclictest2739840-21kworker/3:022:17:023
265666699346344,1cyclictest2630615-21kworker/3:120:09:023
265666699345343,1cyclictest0-21swapper/323:57:013
265666699345343,1cyclictest0-21swapper/323:57:013
265666699344343,1cyclictest2872083-21kworker/3:023:41:023
265666699344343,1cyclictest0-21swapper/323:07:023
265666699344343,1cyclictest0-21swapper/320:15:023
265666699344342,1cyclictest0-21swapper/320:39:023
265666699343341,1cyclictest0-21swapper/320:13:023
265666699343341,1cyclictest0-21swapper/300:37:023
265666699341340,1cyclictest2717659-21kworker/3:221:17:013
265666699341339,1cyclictest0-21swapper/320:41:023
265666699340338,1cyclictest2812712-21kworker/3:222:51:023
265666699340338,1cyclictest0-21swapper/319:37:023
265666699340338,1cyclictest0-21swapper/319:37:023
265666699340338,1cyclictest0-21swapper/319:21:023
265666699339337,1cyclictest0-21swapper/320:23:023
265666699339337,1cyclictest0-21swapper/319:29:023
265666699338337,1cyclictest0-21swapper/319:31:023
265666699338336,1cyclictest0-21swapper/319:17:013
265666699337335,1cyclictest2739840-21kworker/3:022:04:013
265666699336335,1cyclictest2812712-21kworker/3:222:46:023
265666699336334,1cyclictest0-21swapper/322:58:013
265666699336334,1cyclictest0-21swapper/322:22:023
265666699335334,1cyclictest2739840-21kworker/3:022:10:013
265666699335334,1cyclictest2717659-21kworker/3:221:02:023
265666699335334,1cyclictest0-21swapper/300:16:023
265666699335333,1cyclictest0-21swapper/321:36:023
265666699335333,1cyclictest0-21swapper/300:13:023
265666699334333,1cyclictest2872083-21kworker/3:023:33:023
265666699334332,1cyclictest2739840-21kworker/3:021:53:013
265666699333332,1cyclictest2739840-21kworker/3:021:45:023
265666699333331,1cyclictest0-21swapper/323:49:023
265666699332331,1cyclictest2739840-21kworker/3:021:30:023
265666699332330,1cyclictest0-21swapper/300:30:013
265666699332330,1cyclictest0-21swapper/300:28:013
265666699331330,1cyclictest0-21swapper/323:21:013
265666699331330,1cyclictest0-21swapper/322:44:023
265666699331330,1cyclictest0-21swapper/321:20:013
265666699330329,1cyclictest2872083-21kworker/3:000:23:013
265666699330329,1cyclictest2812712-21kworker/3:222:25:023
265666699330329,1cyclictest2739840-21kworker/3:021:40:023
265666699330329,1cyclictest0-21swapper/322:37:023
265666699330328,1cyclictest2630615-21kworker/3:119:50:013
265666699330328,1cyclictest0-21swapper/323:29:013
265666699330328,1cyclictest0-21swapper/322:05:023
265666699329328,1cyclictest2739840-21kworker/3:021:29:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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