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2026-03-10 - 10:22
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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
Characteristics of the 20 highest latencies:
System rack6slot6 (updated Tue Mar 10, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
186959910758653460,54028cyclictest2099-21runrttasks20:48:510
186959910717753473,53606cyclictest1907-21snmpd00:39:080
186959910711853447,53607cyclictest19948-21kworker/0:121:35:450
186959910702753481,53450cyclictest3573-21diskmemload00:04:080
186959910685953442,53417cyclictest0-21swapper23:26:070
186959910680753421,53323cyclictest9-21ksoftirqd/021:21:010
186959910674153409,53241cyclictest0-21swapper20:22:140
186959910674153390,53351cyclictest0-21swapper00:19:320
186959910668353460,53223cyclictest0-21swapper20:00:270
186959910661453427,53067cyclictest0-21swapper20:14:210
186959910661353469,53052cyclictest0-21swapper00:07:590
186959910658553469,53116cyclictest0-21swapper22:54:070
186959910657953463,53116cyclictest0-21swapper19:44:430
186959910656853399,53104cyclictest0-21swapper19:16:550
186959910654253384,53093cyclictest0-21swapper00:11:000
186959910653453465,53069cyclictest0-21swapper21:56:010
186959910651353474,53039cyclictest0-21swapper22:57:080
186959910651253475,53037cyclictest0-21swapper22:08:140
186959910650953462,53047cyclictest0-21swapper23:35:390
186959910650453401,53103cyclictest0-21swapper23:42:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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