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2026-06-22 - 06:18
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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 Mon Jun 22, 2026 00:46:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
390444399360359,1cyclictest0-21swapper/322:20:013
390444399360359,1cyclictest0-21swapper/322:16:023
390444399359358,1cyclictest0-21swapper/321:56:023
390444399358357,1cyclictest0-21swapper/322:39:023
390444399358357,1cyclictest0-21swapper/321:13:023
390444399357356,1cyclictest0-21swapper/323:32:023
390444399356353,3cyclictest0-21swapper/300:20:023
390444399354353,1cyclictest35-21ksoftirqd/322:34:023
390444399354353,1cyclictest0-21swapper/322:01:023
390444399354353,1cyclictest0-21swapper/321:52:023
390444399354353,1cyclictest0-21swapper/320:40:023
390444399354352,1cyclictest0-21swapper/300:18:023
390445899353350,1cyclictest0-21swapper/523:18:025
390444399353352,1cyclictest0-21swapper/322:05:023
390444399353352,1cyclictest0-21swapper/321:17:023
390444399353352,1cyclictest0-21swapper/321:00:023
390444399352351,1cyclictest0-21swapper/323:10:023
390444399352350,1cyclictest0-21swapper/322:58:023
390444399351350,1cyclictest4150376-21kworker/3:223:47:023
390444399351350,1cyclictest0-21swapper/320:51:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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