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2026-05-10 - 22:01
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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 Sun May 10, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
155459910734253422,53797cyclictest2099-21runrttasks07:46:170
155459910685953426,53433cyclictest32147-21ssh09:55:440
155459910673453446,53288cyclictest0-21swapper08:21:070
155459910656153404,53093cyclictest9-21ksoftirqd/011:17:270
155459910655553455,53100cyclictest0-21swapper11:44:550
155459910655253422,53039cyclictest0-21swapper07:11:570
155459910654453411,53042cyclictest0-21swapper11:31:010
155459910654353400,53078cyclictest27222-21kworker/0:110:38:460
155459910653153459,53008cyclictest3950irq/9-acpi10:30:240
155459910652953481,53048cyclictest0-21swapper09:06:000
155459910652653393,53133cyclictest0-21swapper07:36:240
155459910651353460,53053cyclictest0-21swapper07:54:390
155459910650853473,53035cyclictest0-21swapper10:12:190
155459910648653473,53013cyclictest0-21swapper09:32:570
155459910646453492,52972cyclictest0-21swapper12:01:200
155459910645453488,52966cyclictest0-21swapper12:36:400
155459910645253404,53048cyclictest0-21swapper08:17:050
155459910645053472,52978cyclictest0-21swapper11:27:000
155459910643653389,53047cyclictest0-21swapper10:44:180
155459910643153450,52981cyclictest0-21swapper08:46:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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