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2026-04-02 - 21:11
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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 Thu Apr 02, 2026 12:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4047265993800,380cyclictest0-21swapper/409:29:024
4047265993800,380cyclictest0-21swapper/407:45:024
4047265993800,379cyclictest0-21swapper/411:02:024
4047265993800,379cyclictest0-21swapper/410:25:024
4047265993800,379cyclictest0-21swapper/408:55:024
404726599379377,1cyclictest4052333-21kworker/4:011:57:024
404726599379377,1cyclictest4052333-21kworker/4:010:44:024
404726599379377,1cyclictest4052333-21kworker/4:007:25:024
404726599379377,1cyclictest0-21swapper/409:06:024
4047265993790,379cyclictest0-21swapper/411:25:024
4047265993790,379cyclictest0-21swapper/410:08:024
404726599378377,1cyclictest4052333-21kworker/4:011:39:024
404726599378377,1cyclictest4052333-21kworker/4:010:33:024
404726599378377,1cyclictest4052333-21kworker/4:009:24:024
404726599378377,1cyclictest4052333-21kworker/4:009:24:024
404726599378377,1cyclictest4052333-21kworker/4:008:40:024
404726599378377,1cyclictest4052333-21kworker/4:008:35:024
404726599378377,1cyclictest4052333-21kworker/4:008:28:024
404726599378377,1cyclictest4052333-21kworker/4:008:08:024
404726599378377,1cyclictest4052333-21kworker/4:007:50:024
404726599378377,1cyclictest0-21swapper/412:38:024
404726599378377,1cyclictest0-21swapper/410:38:024
404726599378377,1cyclictest0-21swapper/409:53:024
404726599378377,1cyclictest0-21swapper/408:24:024
404726599378376,1cyclictest4052333-21kworker/4:007:55:024
404726599377376,1cyclictest4052333-21kworker/4:012:01:024
404726599377376,1cyclictest4052333-21kworker/4:010:12:024
404726599377376,1cyclictest0-21swapper/407:16:024
404726599377375,1cyclictest0-21swapper/412:26:024
404726599376375,1cyclictest4052333-21kworker/4:011:18:014
404726599376375,1cyclictest4052333-21kworker/4:009:56:024
404726599376375,1cyclictest4052333-21kworker/4:007:21:024
404726599376374,1cyclictest4052333-21kworker/4:009:18:024
404726599375374,1cyclictest4052333-21kworker/4:012:20:024
404726599375374,1cyclictest4052333-21kworker/4:012:20:024
404726599375374,1cyclictest4052333-21kworker/4:011:12:024
404726599375373,1cyclictest4052333-21kworker/4:012:13:024
404726599374373,1cyclictest4019705-21kworker/4:307:11:024
404726599373372,1cyclictest4052333-21kworker/4:012:17:024
404726599372371,1cyclictest4052333-21kworker/4:012:34:024
404726599372371,1cyclictest4052333-21kworker/4:009:44:024
404726599372370,1cyclictest4052333-21kworker/4:007:41:024
404725899362361,1cyclictest0-21swapper/308:43:023
404728699358356,1cyclictest4073733-21kworker/7:008:43:027
404725899357356,1cyclictest4139912-21kworker/3:010:09:023
404725899356355,1cyclictest0-21swapper/307:15:023
404725899356354,1cyclictest4139912-21kworker/3:011:21:023
404725899354353,1cyclictest4139912-21kworker/3:011:41:023
404725899354353,1cyclictest4139912-21kworker/3:011:13:023
404725899354353,1cyclictest4139912-21kworker/3:010:16:023
404725899354353,1cyclictest4103552-21kworker/3:209:23:023
404725899354353,1cyclictest4103552-21kworker/3:209:23:023
404725899354353,1cyclictest0-21swapper/307:10:023
404725899354352,1cyclictest0-21swapper/308:58:023
404728699353351,1cyclictest0-21swapper/710:09:027
404725899353352,1cyclictest0-21swapper/311:29:023
404725899353352,1cyclictest0-21swapper/309:40:023
404725899353352,1cyclictest0-21swapper/309:34:023
404725899353352,1cyclictest0-21swapper/309:15:023
404725899353352,1cyclictest0-21swapper/308:20:023
404725899353351,1cyclictest4139912-21kworker/3:011:31:023
404725899353351,1cyclictest4139912-21kworker/3:010:35:013
404725899352351,1cyclictest4139912-21kworker/3:011:09:023
404725899352351,1cyclictest4044103-21kworker/3:008:47:023
404725899352351,1cyclictest0-21swapper/311:50:023
404725899352351,1cyclictest0-21swapper/311:36:023
404725899352351,1cyclictest0-21swapper/310:59:023
404728699351350,1cyclictest3207674-21kworker/7:107:15:027
404725899351350,1cyclictest4139912-21kworker/3:011:47:023
404725899351350,1cyclictest4139912-21kworker/3:010:31:023
404725899351350,1cyclictest0-21swapper/310:49:023
404725899351350,1cyclictest0-21swapper/310:11:023
404725899351350,1cyclictest0-21swapper/307:24:023
404725899351349,2cyclictest4044103-21kworker/3:008:12:023
404725899351349,1cyclictest4139912-21kworker/3:012:37:013
404725899351349,1cyclictest4124867-21kworker/3:109:52:023
404725899351349,1cyclictest4103552-21kworker/3:209:13:023
404725899351349,1cyclictest4044103-21kworker/3:008:37:023
404725899351349,1cyclictest0-21swapper/309:38:013
404725899351349,1cyclictest0-21swapper/309:09:023
404725899351349,1cyclictest0-21swapper/307:39:023
404728699350349,1cyclictest0-21swapper/711:21:027
404728699350349,1cyclictest0-21swapper/709:23:027
404728699350349,1cyclictest0-21swapper/709:23:017
404725899350349,1cyclictest4139912-21kworker/3:011:58:023
404725899350349,1cyclictest4139912-21kworker/3:010:54:023
404725899350349,1cyclictest4139912-21kworker/3:010:54:023
404725899350348,1cyclictest4139912-21kworker/3:011:15:023
404725899350348,1cyclictest4044103-21kworker/3:008:26:023
404728699349348,1cyclictest4043912-21kworker/7:007:10:027
404728699349348,1cyclictest0-21swapper/711:41:027
404728699349348,1cyclictest0-21swapper/711:13:027
404728699349348,1cyclictest0-21swapper/710:16:027
404728699349347,1cyclictest4073733-21kworker/7:008:20:027
404725899349348,1cyclictest4044103-21kworker/3:008:04:023
404725899349348,1cyclictest0-21swapper/312:32:023
404725899349348,1cyclictest0-21swapper/307:34:023
404725899349347,1cyclictest4103552-21kworker/3:209:03:023
404725899349347,1cyclictest0-21swapper/312:16:013
404728699348347,1cyclictest4188047-21kworker/7:211:34:017
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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