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2026-05-06 - 08:06
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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 Wed May 06, 2026 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3605075993800,379cyclictest0-21swapper/121:22:021
360507599378376,1cyclictest0-21swapper/121:40:021
360507599376375,1cyclictest0-21swapper/119:28:021
360510899367365,1cyclictest3792224-21kworker/5:022:47:025
360510899366364,1cyclictest3660066-21kworker/5:122:43:025
360510899364362,1cyclictest3792224-21kworker/5:023:27:025
360510899364362,1cyclictest3792224-21kworker/5:023:05:025
360510899364362,1cyclictest3792224-21kworker/5:000:03:025
360510899364362,1cyclictest3660066-21kworker/5:121:37:025
360510899363361,1cyclictest3660066-21kworker/5:121:45:025
360510899362361,1cyclictest3900395-21kworker/5:200:17:025
360510899362361,1cyclictest3660066-21kworker/5:121:53:025
360510899362361,1cyclictest3660066-21kworker/5:120:53:035
360510899362361,1cyclictest3660066-21kworker/5:120:53:025
360510899362360,1cyclictest3893872-21kworker/5:220:07:025
360510899362360,1cyclictest3660066-21kworker/5:122:01:025
360510899361360,1cyclictest3792224-21kworker/5:000:09:025
360510899361360,1cyclictest3660066-21kworker/5:121:59:025
360510899361360,1cyclictest0-21swapper/522:11:025
360510899361359,1cyclictest3792224-21kworker/5:023:51:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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