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2026-06-30 - 14:04
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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 Tue Jun 30, 2026 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260073899390389,1cyclictest2643675-21kworker/3:122:19:023
260071399368367,1cyclictest0-21swapper/022:43:020
260076699367365,1cyclictest0-21swapper/722:19:027
260071399367365,1cyclictest0-21swapper/000:02:020
260071399366364,1cyclictest0-21swapper/000:09:020
260071399365364,1cyclictest0-21swapper/023:47:030
260071399365363,1cyclictest0-21swapper/022:49:030
260071399365362,1cyclictest0-21swapper/023:30:020
260071399363362,1cyclictest0-21swapper/000:22:030
260071399363362,1cyclictest0-21swapper/000:18:030
260071399362360,1cyclictest2891365-21kworker/0:121:36:020
260071399362360,1cyclictest2891365-21kworker/0:100:32:020
260071399361360,1cyclictest2891365-21kworker/0:123:53:030
260071399361360,1cyclictest0-21swapper/023:41:030
260071399361360,1cyclictest0-21swapper/022:17:020
260071399360358,1cyclictest0-21swapper/019:15:030
260075899358357,1cyclictest0-21swapper/622:08:026
260071399358357,1cyclictest2891365-21kworker/0:123:24:020
260071399357356,1cyclictest2891365-21kworker/0:120:25:020
260071399357355,1cyclictest0-21swapper/022:38:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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