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2026-01-09 - 20:23
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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 Jan 09, 2026 12:46:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279579723700,5sleep442-21ksoftirqd/407:05:274
279640499368366,1cyclictest0-21swapper/307:35:023
279643299360358,2cyclictest2803241-21kworker/7:207:35:027
279561923470,3sleep30-21swapper/307:05:263
279641199340339,1cyclictest0-21swapper/408:55:024
279641199340338,1cyclictest0-21swapper/411:15:024
279641199340338,1cyclictest0-21swapper/411:15:024
279641199338336,1cyclictest0-21swapper/407:47:024
279641199336335,1cyclictest0-21swapper/412:05:024
279641199336335,1cyclictest0-21swapper/408:05:034
279641199336334,1cyclictest0-21swapper/409:45:034
279641199336334,1cyclictest0-21swapper/409:45:024
279641199335334,1cyclictest0-21swapper/410:51:024
279641199335334,1cyclictest0-21swapper/409:14:024
279641199334332,1cyclictest2932588-21kworker/4:110:55:024
279641199334332,1cyclictest0-21swapper/408:19:024
279641199334332,1cyclictest0-21swapper/408:19:024
279641199333332,1cyclictest3069442-21kworker/4:107:55:034
279641199333332,1cyclictest0-21swapper/411:05:024
279641199333332,1cyclictest0-21swapper/409:05:024
279641199333332,1cyclictest0-21swapper/408:41:024
279641199333331,1cyclictest2799419-21kworker/4:009:03:024
279641199333331,1cyclictest0-21swapper/410:13:024
279641199333331,1cyclictest0-21swapper/407:53:034
279640499333331,1cyclictest2947600-21kworker/3:011:25:023
279641199331330,1cyclictest0-21swapper/410:21:024
279641199331329,1cyclictest2799419-21kworker/4:008:47:024
279641199330328,1cyclictest3069442-21kworker/4:108:00:034
279641199329327,1cyclictest2799419-21kworker/4:009:31:034
279641199329327,1cyclictest0-21swapper/409:43:024
279640499329328,1cyclictest3034154-21kworker/3:109:35:023
279641199328327,1cyclictest0-21swapper/412:16:034
279641199328326,1cyclictest2932588-21kworker/4:111:27:034
279641199328326,1cyclictest2799419-21kworker/4:009:28:024
279640499328327,1cyclictest2947600-21kworker/3:011:45:023
279640499328326,1cyclictest3034154-21kworker/3:109:57:033
279640499328326,1cyclictest2947600-21kworker/3:012:27:023
279640499328326,1cyclictest0-21swapper/310:51:023
279640499328325,2cyclictest3034154-21kworker/3:107:23:023
279641199327326,1cyclictest0-21swapper/408:23:024
279641199327326,1cyclictest0-21swapper/408:23:024
279641199327324,1cyclictest2799419-21kworker/4:010:29:034
279640499327325,1cyclictest3034154-21kworker/3:110:57:023
279641199326324,1cyclictest2799419-21kworker/4:008:52:024
279640499326324,1cyclictest0-21swapper/307:55:023
279640499325323,1cyclictest0-21swapper/308:21:033
279640499325323,1cyclictest0-21swapper/308:21:033
279640499325323,1cyclictest0-21swapper/307:29:033
279640499324323,1cyclictest0-21swapper/310:37:023
279640499324323,1cyclictest0-21swapper/310:13:033
279640499324323,1cyclictest0-21swapper/307:53:023
279640499324322,1cyclictest0-21swapper/310:21:033
279638599324323,1cyclictest0-21swapper/107:35:021
279643299323322,1cyclictest0-21swapper/711:25:037
279640499323321,1cyclictest0-21swapper/311:59:033
279640499323321,1cyclictest0-21swapper/311:51:023
279640499323321,1cyclictest0-21swapper/309:11:033
279640499323321,1cyclictest0-21swapper/308:47:033
279641199322321,1cyclictest2932588-21kworker/4:112:13:034
279641199322321,1cyclictest2932588-21kworker/4:111:20:024
279641199322321,1cyclictest0-21swapper/412:38:024
279641199322320,1cyclictest0-21swapper/408:31:024
279640499322320,1cyclictest0-21swapper/311:09:033
279640499322320,1cyclictest0-21swapper/309:31:023
279640499322320,1cyclictest0-21swapper/308:13:023
279643299321320,1cyclictest0-21swapper/709:35:037
279641199321320,1cyclictest0-21swapper/411:44:024
279641199321319,1cyclictest0-21swapper/410:47:024
279640499321320,1cyclictest0-21swapper/308:57:023
279643299320319,1cyclictest0-21swapper/711:45:027
279641199320319,1cyclictest0-21swapper/412:23:034
279641199320318,1cyclictest3069442-21kworker/4:107:42:024
279641199320318,1cyclictest3069442-21kworker/4:107:12:024
279641199320318,1cyclictest2932588-21kworker/4:111:32:024
279641199320318,1cyclictest2799419-21kworker/4:010:44:034
279641199320318,1cyclictest2799419-21kworker/4:010:17:024
279643299319318,1cyclictest0-21swapper/712:27:037
279643299319317,1cyclictest2917557-21kworker/7:110:51:027
279643299319317,1cyclictest0-21swapper/707:23:027
279641199319318,1cyclictest0-21swapper/411:38:024
279643299318317,1cyclictest0-21swapper/710:57:027
279643299318317,1cyclictest0-21swapper/709:57:027
279641199318316,1cyclictest2932588-21kworker/4:112:31:034
279641199318316,1cyclictest2932588-21kworker/4:112:04:024
279643299317315,1cyclictest2917557-21kworker/7:110:37:037
279643299317315,1cyclictest2803241-21kworker/7:207:55:037
279641199317316,1cyclictest2799419-21kworker/4:010:36:034
279641199317315,1cyclictest3069442-21kworker/4:107:16:024
279640499317315,1cyclictest0-21swapper/310:33:023
279643299316314,2cyclictest2911095-21kworker/7:010:21:027
279643299316314,1cyclictest2860290-21kworker/7:110:13:037
279643299316314,1cyclictest2803241-21kworker/7:208:21:027
279643299316314,1cyclictest2803241-21kworker/7:208:21:027
279643299316314,1cyclictest2770549-21kworker/7:007:29:027
279643299315314,1cyclictest2803241-21kworker/7:207:53:037
279643299315313,1cyclictest2803241-21kworker/7:208:47:027
279643299314312,1cyclictest2965695-21kworker/7:011:59:027
279643299314312,1cyclictest2917557-21kworker/7:111:51:027
279640499314311,2cyclictest2947600-21kworker/3:012:17:023
279643299313312,1cyclictest2860290-21kworker/7:109:11:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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