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2026-09-07 - 04:06
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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 Mon Sep 07, 2026 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227697599373372,1cyclictest2364582-21kworker/4:023:07:014
227696899372371,1cyclictest2478924-21kworker/3:123:03:023
227696899370369,1cyclictest0-21swapper/300:00:023
227696899370368,1cyclictest2337947-21kworker/3:222:07:023
227696899370368,1cyclictest0-21swapper/322:47:013
227696899370368,1cyclictest0-21swapper/321:59:013
227696899369367,1cyclictest2489145-21kworker/3:000:15:023
227697599368367,1cyclictest2364582-21kworker/4:022:00:024
227697599368367,1cyclictest0-21swapper/422:19:024
227696899368367,1cyclictest2489145-21kworker/3:000:27:023
227696899368367,1cyclictest2337947-21kworker/3:221:37:023
227696899368367,1cyclictest0-21swapper/321:54:023
227696899368366,1cyclictest0-21swapper/323:39:023
227696899367366,1cyclictest0-21swapper/323:33:023
227696899367365,1cyclictest2489145-21kworker/3:023:43:023
227696899367365,1cyclictest2489145-21kworker/3:023:43:023
227696899367365,1cyclictest2337947-21kworker/3:222:28:013
227696899366365,1cyclictest2337947-21kworker/3:221:45:023
227696899366365,1cyclictest0-21swapper/323:27:023
227696899366364,1cyclictest2449530-21kworker/3:322:36:023
227697599365363,1cyclictest0-21swapper/422:56:024
227696899365364,1cyclictest2489145-21kworker/3:000:06:023
227696899365364,1cyclictest0-21swapper/322:24:023
227696899365364,1cyclictest0-21swapper/321:30:023
227696899365363,1cyclictest0-21swapper/323:09:023
227696899364363,1cyclictest2337947-21kworker/3:222:02:023
227696899364363,1cyclictest0-21swapper/323:50:023
227696899364363,1cyclictest0-21swapper/321:27:023
227696899364363,1cyclictest0-21swapper/319:26:023
227696899364363,1cyclictest0-21swapper/319:26:023
227696899364363,1cyclictest0-21swapper/319:20:023
227696899364362,1cyclictest2489145-21kworker/3:023:48:013
227697599363361,1cyclictest2298838-21kworker/4:121:11:024
227696899363362,1cyclictest2455477-21kworker/3:022:44:023
227696899363362,1cyclictest2337947-21kworker/3:222:32:023
227696899363362,1cyclictest2337947-21kworker/3:221:01:023
227696899363362,1cyclictest0-21swapper/321:43:023
227696899363362,1cyclictest0-21swapper/300:36:023
227696899363361,1cyclictest2489145-21kworker/3:000:12:023
227696899363361,1cyclictest2337947-21kworker/3:222:17:023
227696899362361,1cyclictest2489145-21kworker/3:023:13:023
227696899362361,1cyclictest0-21swapper/323:23:023
227696899362361,1cyclictest0-21swapper/319:10:023
227697599361360,1cyclictest2364582-21kworker/4:023:26:024
227697599361360,1cyclictest0-21swapper/421:41:024
227696899361360,1cyclictest2489145-21kworker/3:023:56:023
227697599360359,1cyclictest0-21swapper/422:25:024
227697599360359,1cyclictest0-21swapper/400:02:014
227697599360358,1cyclictest0-21swapper/422:51:024
227697599359358,1cyclictest2364582-21kworker/4:023:21:024
227697599359358,1cyclictest2364582-21kworker/4:022:33:024
227697599359358,1cyclictest2364582-21kworker/4:021:26:014
227697599359358,1cyclictest0-21swapper/423:49:024
227696899359358,1cyclictest2569663-21kworker/3:019:35:023
227696899359358,1cyclictest0-21swapper/322:54:013
227696899359357,1cyclictest2569663-21kworker/3:019:57:023
227696899359357,1cyclictest2325929-21kworker/3:120:47:023
227696899359357,1cyclictest0-21swapper/320:29:023
227696899358357,1cyclictest2569663-21kworker/3:020:23:023
227696899358357,1cyclictest2569663-21kworker/3:019:46:023
227696899358357,1cyclictest2337947-21kworker/3:220:59:023
227696899358357,1cyclictest2337947-21kworker/3:220:59:023
227696899358356,1cyclictest2337947-21kworker/3:221:09:023
227697599357356,1cyclictest2364582-21kworker/4:000:24:024
227697599357356,1cyclictest0-21swapper/423:35:014
227697599357355,1cyclictest2364582-21kworker/4:023:57:014
227697599357355,1cyclictest0-21swapper/423:44:024
227697599357355,1cyclictest0-21swapper/423:44:024
227696899357356,1cyclictest0-21swapper/319:33:023
227697599356355,1cyclictest2533656-21kworker/4:219:30:024
227697599356355,1cyclictest2364582-21kworker/4:000:26:014
227697599356355,1cyclictest2364582-21kworker/4:000:08:024
227697599356355,1cyclictest2350008-21kworker/4:221:17:024
227697599356355,1cyclictest2298838-21kworker/4:120:00:024
227697599356355,1cyclictest0-21swapper/423:18:024
227697599356355,1cyclictest0-21swapper/422:12:024
227697599356355,1cyclictest0-21swapper/421:23:014
227696899356355,1cyclictest2569663-21kworker/3:020:16:023
227696899356355,1cyclictest0-21swapper/320:44:023
227696899356355,1cyclictest0-21swapper/320:02:023
227696899356355,1cyclictest0-21swapper/319:43:023
227696899356355,1cyclictest0-21swapper/319:18:023
227697599355354,1cyclictest2533656-21kworker/4:219:17:024
227697599355354,1cyclictest0-21swapper/420:55:024
227697599355354,1cyclictest0-21swapper/420:55:024
227697599355354,1cyclictest0-21swapper/419:40:024
227697599355354,1cyclictest0-21swapper/400:38:024
227697599355353,1cyclictest0-21swapper/419:55:024
227696899355354,1cyclictest2569663-21kworker/3:020:14:023
227696899355354,1cyclictest2569663-21kworker/3:019:51:023
227697599354353,1cyclictest2364582-21kworker/4:023:32:014
227697599354353,1cyclictest2364582-21kworker/4:021:39:024
227697599353352,1cyclictest2298838-21kworker/4:121:05:024
227697599353352,1cyclictest0-21swapper/420:50:014
227697599353352,1cyclictest0-21swapper/420:20:024
227697599352351,1cyclictest2298838-21kworker/4:120:46:014
227697599352351,1cyclictest0-21swapper/422:49:024
227697599352351,1cyclictest0-21swapper/419:45:024
227697599351350,1cyclictest2298838-21kworker/4:120:13:024
227697599351350,1cyclictest0-21swapper/420:28:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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