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2026-05-18 - 06:35
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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 Mon May 18, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
327453199620,1cyclictest0-21swapper/121:07:321
3274531996158,2cyclictest0-21swapper/123:10:051
3274531995944,14cyclictest3283270-21kworker/1:319:50:031
3274531995942,16cyclictest3464494-21kworker/1:100:00:021
3274531995942,16cyclictest3361167-21kworker/1:022:05:161
3274531995939,18cyclictest3464494-21kworker/1:100:05:171
3274531995843,14cyclictest3303011-21kworker/1:120:40:271
3274531995843,14cyclictest3303011-21kworker/1:120:40:261
3274531995842,15cyclictest881507-1kworker/1:0H21:55:131
3274531995842,15cyclictest3488790-21kworker/1:200:25:131
3274531995842,15cyclictest3269989-21kworker/1:319:10:131
3274531995841,16cyclictest3380789-21kworker/1:222:55:131
3274531995841,16cyclictest3380789-21kworker/1:222:40:141
3274531995840,17cyclictest3336987-21kworker/1:221:40:141
3274531995840,16cyclictest3450064-21kworker/1:223:45:151
3274531995743,14cyclictest3459708-21kworker/1:023:55:141
3274531995742,14cyclictest881507-1kworker/1:0H20:00:131
3274531995742,14cyclictest3488790-21kworker/1:200:30:181
3274531995742,14cyclictest3440433-21kworker/1:023:40:141
3274531995742,14cyclictest3440433-21kworker/1:023:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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