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2026-06-11 - 21:47
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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 20 highest latencies:
System rackcslot6.osadl.org (updated Thu Jun 11, 2026 12:46:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213387993831,381cyclictest0-21swapper/310:47:013
213387993831,381cyclictest0-21swapper/309:23:013
21338799382380,1cyclictest97550irq/166-enp0s3107:35:023
213387993821,380cyclictest0-21swapper/311:49:013
213387993821,380cyclictest0-21swapper/311:37:013
213387993820,381cyclictest0-21swapper/307:27:023
21338799381380,1cyclictest97550irq/166-enp0s3109:35:013
21338799381379,1cyclictest97550irq/166-enp0s3109:40:023
21338799381379,1cyclictest97550irq/166-enp0s3109:12:013
21338799381379,1cyclictest97550irq/166-enp0s3108:52:013
213387993810,380cyclictest0-21swapper/312:37:013
21338799380379,1cyclictest97550irq/166-enp0s3111:07:023
21338799380379,1cyclictest97550irq/166-enp0s3110:03:013
21338799380379,1cyclictest97550irq/166-enp0s3108:42:013
21338799380379,1cyclictest97550irq/166-enp0s3108:30:013
21338799380379,1cyclictest97550irq/166-enp0s3108:30:013
21338799380378,1cyclictest97550irq/166-enp0s3112:04:023
21338799380378,1cyclictest97550irq/166-enp0s3111:53:013
21338799380378,1cyclictest97550irq/166-enp0s3111:33:013
21338799380378,1cyclictest97550irq/166-enp0s3110:23:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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