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2026-06-13 - 15:02
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot3.osadl.org (updated Sat Jun 13, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
785607997268,2cyclictest0-21swapper/120:00:111
785607996539,25cyclictest911761-21kworker/1:222:51:411
785607996246,15cyclictest984311-21kworker/1:200:20:011
785607996246,15cyclictest253016-1kworker/1:0H00:39:091
785607996160,1cyclictest0-21swapper/120:27:011
785607996158,2cyclictest0-21swapper/123:33:341
785607996141,18cyclictest253016-1kworker/1:0H21:50:011
785605996158,2cyclictest886666-21kworker/0:222:56:330
785607996042,17cyclictest911761-21kworker/1:223:00:131
785607996042,16cyclictest827022-21kworker/1:021:25:001
785607996040,18cyclictest920946-21kworker/1:123:16:061
785607996039,20cyclictest253016-1kworker/1:0H20:40:001
785607995944,15cyclictest882722-21kworker/1:122:35:121
785607995944,14cyclictest793175-21kworker/1:219:50:011
785607995944,14cyclictest793175-21kworker/1:219:45:321
785607995942,16cyclictest934407-21kworker/1:223:25:151
785607995942,16cyclictest882722-21kworker/1:122:55:131
785607995940,17cyclictest827022-21kworker/1:021:25:091
785607995939,19cyclictest253016-1kworker/1:0H19:24:591
785607995843,14cyclictest970136-21kworker/1:300:05:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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