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2025-11-17 - 11:26
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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 Mon Nov 17, 2025 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
360473423370,5sleep228-21ksoftirqd/219:05:202
392240121230,1sleep6360628099cyclictest00:20:226
37584882920,0sleep73758486-21ssh22:10:137
3606235999121,37cyclictest0-21swapper/019:13:130
3606235999121,37cyclictest0-21swapper/019:13:130
3606235999113,50cyclictest3681778-21diskmemload23:28:130
3606235999113,50cyclictest3681778-21diskmemload23:28:130
360332928743,12sleep60-21swapper/619:05:096
37405112860,0sleep30-21swapper/321:55:193
3606252998517,36cyclictest0-21swapper/220:58:132
3606252998516,36cyclictest0-21swapper/223:48:132
36092472840,1sleep33609246-21sh19:15:003
36092472840,1sleep33609246-21sh19:15:003
3606252998015,35cyclictest0-21swapper/220:23:132
3606235998016,32cyclictest0-21swapper/021:08:130
3606273997915,34cyclictest0-21swapper/521:53:125
360601327837,12sleep30-21swapper/319:09:333
39403752760,0sleep30-21swapper/300:35:153
37353512750,0sleep40-21swapper/421:50:244
38248882740,0sleep40-21swapper/423:02:174
37634582740,0sleep60-21swapper/622:14:216
3606288997415,35cyclictest0-21swapper/722:28:127
360591227434,33sleep40-21swapper/419:08:044
3606288997316,36cyclictest0-21swapper/700:13:137
36911162710,0sleep70-21swapper/721:15:267
3606288997018,39cyclictest0-21swapper/720:48:137
360597927044,13sleep50-21swapper/519:09:025
360590626943,19sleep70-21swapper/719:07:597
360587026943,13sleep00-21swapper/019:07:280
3606288996818,39cyclictest0-21swapper/722:08:127
3606252996815,39cyclictest0-21swapper/221:23:122
3606288996516,19cyclictest0-21swapper/700:23:127
360591826544,14sleep10-21swapper/119:08:091
38104172590,0sleep10-21swapper/122:50:201
3606288993511,24cyclictest0-21swapper/721:32:597
36183682340,0sleep30-21swapper/319:25:183
3606259993417,17cyclictest0-21swapper/319:58:133
3606259993414,20cyclictest0-21swapper/323:38:133
3606259993414,20cyclictest0-21swapper/323:13:133
3606235993410,24cyclictest0-21swapper/021:42:590
360625999339,24cyclictest0-21swapper/300:12:583
3606235993316,17cyclictest0-21swapper/023:03:130
360627399327,24cyclictest3681778-21diskmemload22:47:595
3606288993014,1cyclictest0-21swapper/721:13:127
3606288993014,15cyclictest0-21swapper/700:33:147
360628099306,24cyclictest0-21swapper/622:28:586
360627399306,24cyclictest0-21swapper/521:36:595
3606273993014,15cyclictest0-21swapper/522:23:125
3606267993014,15cyclictest0-21swapper/420:28:134
3606252993014,15cyclictest0-21swapper/223:08:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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