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2026-06-11 - 13:11
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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 Thu Jun 11, 2026 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
415188599353352,1cyclictest0-21swapper/121:48:021
415187999353351,1cyclictest0-21swapper/023:55:020
415188599348347,1cyclictest0-21swapper/123:55:021
415187999348347,1cyclictest0-21swapper/023:51:020
415188599346345,1cyclictest0-21swapper/121:23:021
415188599345343,1cyclictest0-21swapper/123:51:021
415187999345344,1cyclictest0-21swapper/000:33:010
415187999345343,1cyclictest88608-21kworker/0:223:25:020
415187999345343,1cyclictest0-21swapper/021:47:020
415187999344342,1cyclictest0-21swapper/000:03:010
415187999343341,1cyclictest199064-21kworker/0:023:39:010
415188599342340,1cyclictest0-21swapper/100:33:021
415187999342341,1cyclictest0-21swapper/000:09:020
415188599341340,1cyclictest4164751-21kworker/1:222:49:021
415188599341340,1cyclictest4164751-21kworker/1:221:05:021
415188599341340,1cyclictest0-21swapper/122:25:021
415188599341340,1cyclictest0-21swapper/121:15:021
415187999341340,1cyclictest0-21swapper/023:17:020
415187999341339,1cyclictest88608-21kworker/0:222:09:020
415187999341339,1cyclictest4191832-21kworker/0:121:37:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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