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2026-08-20 - 10:06
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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 Aug 20, 2026 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
418275799382380,1cyclictest97550irq/166-enp0s3121:17:021
418275799382380,1cyclictest97550irq/166-enp0s3119:25:011
418275799381379,1cyclictest97550irq/166-enp0s3121:53:011
418275799381379,1cyclictest97550irq/166-enp0s3120:45:011
418275799381379,1cyclictest97550irq/166-enp0s3120:25:011
418275799381379,1cyclictest97550irq/166-enp0s3100:11:021
418275799380379,1cyclictest7907-21kworker/1:021:36:011
418275799380378,1cyclictest97550irq/166-enp0s3120:41:011
418275799380378,1cyclictest97550irq/166-enp0s3119:19:021
418275799379377,1cyclictest97550irq/166-enp0s3120:37:021
418275799379377,1cyclictest97550irq/166-enp0s3120:23:011
418275799379377,1cyclictest97550irq/166-enp0s3120:17:011
418275799379377,1cyclictest97550irq/166-enp0s3120:11:021
418275799379377,1cyclictest97550irq/166-enp0s3119:59:021
418275799378377,1cyclictest7907-21kworker/1:021:58:011
418275799378377,1cyclictest7907-21kworker/1:021:22:021
418275799378377,1cyclictest7907-21kworker/1:021:22:021
418275799378377,1cyclictest253912-21kworker/1:200:20:011
418275799378376,2cyclictest253912-21kworker/1:200:36:021
418275799377376,1cyclictest7907-21kworker/1:021:44:021
418275799377376,1cyclictest141779-21kworker/1:222:22:021
418275799377375,1cyclictest253912-21kworker/1:200:32:021
418275799376375,1cyclictest7907-21kworker/1:022:12:011
418275799376375,1cyclictest158763-21kworker/1:022:44:021
418275799376375,1cyclictest141779-21kworker/1:222:30:021
418275799375374,1cyclictest7907-21kworker/1:021:30:011
418275799375374,1cyclictest158763-21kworker/1:023:36:021
418275799374373,1cyclictest7907-21kworker/1:021:47:021
418275799374373,1cyclictest158763-21kworker/1:023:24:011
418275799374372,1cyclictest253912-21kworker/1:200:09:021
418275799373372,1cyclictest7907-21kworker/1:020:30:021
418275799373372,1cyclictest7907-21kworker/1:020:09:021
418275799372371,1cyclictest7907-21kworker/1:019:50:021
418275799372371,1cyclictest7907-21kworker/1:019:50:011
418275799371370,1cyclictest7907-21kworker/1:021:04:021
418275799371370,1cyclictest4170418-21kworker/1:119:31:021
418275799370369,1cyclictest4170418-21kworker/1:119:38:021
418275799370369,1cyclictest4170418-21kworker/1:119:20:011
418275799369368,1cyclictest4170418-21kworker/1:119:14:021
418275799368367,1cyclictest7907-21kworker/1:020:58:021
418275799368367,1cyclictest7907-21kworker/1:020:04:021
418275799367366,1cyclictest7907-21kworker/1:020:53:011
418275799367366,1cyclictest7907-21kworker/1:019:41:021
418278499366363,2cyclictest129375-21kworker/4:122:19:014
418278499364361,2cyclictest4153337-21kworker/4:021:35:014
418278499362360,1cyclictest129375-21kworker/4:122:27:014
418278499362360,1cyclictest0-21swapper/423:49:014
418278499361358,2cyclictest129375-21kworker/4:122:37:014
418278499361358,2cyclictest129375-21kworker/4:100:05:024
418278499360359,1cyclictest0-21swapper/400:31:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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