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2026-06-22 - 19:26
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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 12:46:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
415397199374373,1cyclictest0-21swapper/211:35:012
415397199373372,1cyclictest0-21swapper/211:15:022
415397199373372,1cyclictest0-21swapper/211:06:022
415397199373372,1cyclictest0-21swapper/211:03:012
415397199371370,1cyclictest0-21swapper/212:12:012
415397199371370,1cyclictest0-21swapper/208:25:012
415397199371368,1cyclictest45308-21kworker/2:010:19:022
415397199370369,1cyclictest108471-21kworker/2:211:56:022
415397199370369,1cyclictest0-21swapper/212:02:022
415397199369368,1cyclictest0-21swapper/210:46:022
415397199368367,1cyclictest0-21swapper/211:28:012
415397199368367,1cyclictest0-21swapper/211:20:012
415397199368367,1cyclictest0-21swapper/209:55:012
415397199368366,1cyclictest0-21swapper/209:40:012
415397199367366,1cyclictest0-21swapper/212:20:012
415397199367366,1cyclictest0-21swapper/210:30:022
415397199367365,1cyclictest0-21swapper/207:22:022
415397199366365,1cyclictest45308-21kworker/2:010:25:012
415397199366365,1cyclictest0-21swapper/208:45:022
415397199365364,1cyclictest4118501-21kworker/2:108:40:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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