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2026-06-05 - 08:25
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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 Fri Jun 05, 2026 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195774123950,4sleep4411rcuc/419:05:194
195900699380379,1cyclictest2114960-21kworker/3:122:38:023
195899999369367,1cyclictest2157992-21kworker/2:223:39:022
195899999369367,1cyclictest2157992-21kworker/2:223:39:022
195902899368366,1cyclictest0-21swapper/623:39:036
195902899368366,1cyclictest0-21swapper/623:39:026
195900699368364,3cyclictest2156836-21kworker/3:023:53:023
195900699366365,1cyclictest0-21swapper/321:19:023
195900699366364,1cyclictest0-21swapper/321:49:023
195900699366362,3cyclictest0-21swapper/322:08:023
195900699366362,3cyclictest0-21swapper/322:08:023
195900699365364,1cyclictest0-21swapper/323:49:023
195900699364363,1cyclictest0-21swapper/322:40:023
195900699364363,1cyclictest0-21swapper/322:33:033
195900699364362,1cyclictest0-21swapper/321:53:023
195900699363362,1cyclictest0-21swapper/319:15:033
195900699363362,1cyclictest0-21swapper/300:14:023
195900699362360,1cyclictest0-21swapper/323:12:023
195900699362360,1cyclictest0-21swapper/323:06:023
195900699362360,1cyclictest0-21swapper/321:41:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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