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2026-09-01 - 14:19
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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 Tue Sep 01, 2026 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120918993821,380cyclictest0-21swapper/321:43:033
12091899381379,1cyclictest383122-21kworker/3:200:10:023
12091899381379,1cyclictest163845-21kworker/3:021:45:023
120911993810,1cyclictest0-21swapper/221:06:022
12091899380379,1cyclictest313350-21kworker/3:223:13:023
12091899380378,1cyclictest0-21swapper/319:27:023
12091899380378,1cyclictest0-21swapper/319:27:023
12090399380379,1cyclictest227786-21kworker/1:222:03:021
12090399380378,1cyclictest97550irq/166-enp0s3123:31:021
12091899379377,1cyclictest0-21swapper/320:29:033
12091899379377,1cyclictest0-21swapper/319:37:023
12091899379376,1cyclictest0-21swapper/320:01:033
12090399379378,1cyclictest97550irq/166-enp0s3123:03:021
12090399379378,1cyclictest97550irq/166-enp0s3120:15:021
12090399379377,1cyclictest97550irq/166-enp0s3122:25:021
12090399379377,1cyclictest97550irq/166-enp0s3100:35:021
12091899378377,1cyclictest313350-21kworker/3:223:07:023
12091899378377,1cyclictest0-21swapper/319:11:033
12091899378376,1cyclictest0-21swapper/320:41:023
12090399378377,1cyclictest97550irq/166-enp0s3123:37:021
12090399378377,1cyclictest97550irq/166-enp0s3122:51:021
12090399378376,1cyclictest97550irq/166-enp0s3121:39:021
12091899377376,1cyclictest0-21swapper/323:20:023
12091899377376,1cyclictest0-21swapper/321:21:023
12091899377375,1cyclictest392997-21kworker/3:119:59:023
12090399377376,1cyclictest97550irq/166-enp0s3122:43:021
12090399377376,1cyclictest97550irq/166-enp0s3122:13:021
12090399377376,1cyclictest97550irq/166-enp0s3100:05:021
12090399377375,1cyclictest97550irq/166-enp0s3123:09:021
12090399377375,1cyclictest97550irq/166-enp0s3121:27:021
12090399377375,1cyclictest97550irq/166-enp0s3121:17:021
12090399377375,1cyclictest97550irq/166-enp0s3121:07:031
12091899376374,1cyclictest0-21swapper/323:51:023
12090399376375,1cyclictest97550irq/166-enp0s3123:23:021
12090399376375,1cyclictest97550irq/166-enp0s3121:55:021
12090399376375,1cyclictest97550irq/166-enp0s3119:25:021
12090399376375,1cyclictest97550irq/166-enp0s3119:25:021
12090399376374,1cyclictest97550irq/166-enp0s3120:45:021
12090399376374,1cyclictest97550irq/166-enp0s3120:05:021
12090399376374,1cyclictest97550irq/166-enp0s3100:21:021
12091899375374,1cyclictest313350-21kworker/3:222:55:023
12091899375373,1cyclictest163845-21kworker/3:020:58:033
12091899375373,1cyclictest0-21swapper/322:21:023
12091899375373,1cyclictest0-21swapper/322:21:023
12091899375373,1cyclictest0-21swapper/321:14:023
12090399375373,1cyclictest97550irq/166-enp0s3121:41:021
12091899374373,1cyclictest0-21swapper/321:50:023
12091899374373,1cyclictest0-21swapper/300:24:023
12091899374372,1cyclictest345028-21kworker/3:023:30:023
12091899374372,1cyclictest246420-21kworker/3:122:06:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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