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2026-06-26 - 10:27
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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 26, 2026 00:46:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
114887599398396,1cyclictest1197789-21kworker/5:022:42:025
1148882993970,396cyclictest0-21swapper/621:47:026
114887599397396,1cyclictest1197789-21kworker/5:023:28:025
114887599395394,1cyclictest1197789-21kworker/5:023:21:025
114887599395394,1cyclictest1197789-21kworker/5:000:07:025
114887599395393,1cyclictest1197789-21kworker/5:022:07:025
114887599394393,1cyclictest1197789-21kworker/5:023:41:025
114887599394392,1cyclictest1197789-21kworker/5:021:25:035
114887599394391,2cyclictest1197789-21kworker/5:022:13:025
114887599394391,2cyclictest1197789-21kworker/5:022:13:025
114887599393392,1cyclictest1438800-21kworker/5:200:28:025
114887599393392,1cyclictest1197789-21kworker/5:022:03:025
114887599393392,1cyclictest1197789-21kworker/5:021:24:025
114887599393392,1cyclictest0-21swapper/523:35:035
114887599393392,1cyclictest0-21swapper/523:35:025
114887599393392,1cyclictest0-21swapper/522:56:025
1148875993930,392cyclictest0-21swapper/523:59:025
114887599392391,1cyclictest1197789-21kworker/5:022:38:175
114887599392391,1cyclictest0-21swapper/522:34:025
114887599392391,1cyclictest0-21swapper/521:13:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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