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2025-11-27 - 11:25
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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 Thu Nov 27, 2025 00:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
298062024710,4sleep7621rcuc/719:05:217
29801652142122,17sleep30-21swapper/319:05:183
298070221070,10sleep010-21ksoftirqd/019:05:220
31640702960,1sleep763-21ksoftirqd/722:36:537
298159329643,13sleep60-21swapper/619:09:076
298141428343,14sleep50-21swapper/519:06:315
32948362820,0sleep00-21swapper/000:20:180
29959982810,0sleep656-21ksoftirqd/619:30:126
2981888998015,36cyclictest0-21swapper/620:48:146
2981888998013,37cyclictest0-21swapper/600:33:136
2981888997917,36cyclictest0-21swapper/621:13:146
32116492770,2sleep656-21ksoftirqd/623:15:126
30481202760,0sleep00-21swapper/021:00:170
2981888997615,38cyclictest0-21swapper/621:38:146
216999750,42rtkit-daemon0-21swapper/119:07:301
32424712730,0sleep442-21ksoftirqd/423:40:014
298166027244,13sleep20-21swapper/219:09:582
31404242710,0sleep50-21swapper/522:19:045
2981888997116,40cyclictest0-21swapper/622:23:136
29818762710,0sleep40-21swapper/419:10:004
32494142700,0sleep20-21swapper/223:45:122
2981888997017,39cyclictest0-21swapper/623:23:146
31128662690,0sleep00-21swapper/021:55:520
2981888996815,37cyclictest0-21swapper/622:48:146
32149892670,0sleep10-21swapper/123:17:241
298189699649,24cyclictest0-21swapper/722:13:147
2981896995914,13cyclictest0-21swapper/721:23:147
2981865995916,36cyclictest0-21swapper/319:53:143
2981865995517,36cyclictest0-21swapper/320:13:133
2981865995215,35cyclictest0-21swapper/322:33:143
2981896995017,33cyclictest0-21swapper/723:33:147
2981896995016,34cyclictest0-21swapper/723:08:137
2981896994915,34cyclictest0-21swapper/723:43:137
2981896994915,34cyclictest0-21swapper/720:28:137
2981896994915,33cyclictest0-21swapper/700:08:137
2981896994816,32cyclictest0-21swapper/719:28:147
2981896994715,32cyclictest0-21swapper/720:38:137
2981896994415,29cyclictest0-21swapper/722:58:147
2981896994317,26cyclictest0-21swapper/723:58:147
298186599339,24cyclictest0-21swapper/321:05:593
2981865993310,0cyclictest0-21swapper/320:46:593
2981839993230,1cyclictest0-21swapper/000:37:590
2981880993131,0cyclictest0-21swapper/500:24:535
298189699296,0cyclictest0-21swapper/723:24:597
298186599295,24cyclictest0-21swapper/319:17:583
2981858992916,13cyclictest0-21swapper/219:38:132
30850742280,0sleep20-21swapper/221:35:122
298189699284,24cyclictest0-21swapper/721:33:597
298189699284,24cyclictest0-21swapper/720:03:597
298189699284,24cyclictest0-21swapper/720:03:597
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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