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2026-08-29 - 08:22
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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 Aug 29, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3615495997152,18cyclictest3783007-21kworker/1:023:40:141
361549599681,65cyclictest0-21swapper/122:45:101
3615495996544,19cyclictest2364340-1kworker/1:2H23:20:001
3615495996544,19cyclictest2364340-1kworker/1:2H23:20:001
361549599640,62cyclictest0-21swapper/119:25:591
3615495996360,2cyclictest0-21swapper/122:04:311
3615495996345,17cyclictest3643993-21kworker/1:120:40:151
3615495996345,16cyclictest3792608-21kworker/1:223:53:321
3615495996246,15cyclictest3822804-21kworker/1:200:25:141
3615495996241,19cyclictest3783007-21kworker/1:023:35:141
361549599620,61cyclictest0-21swapper/122:19:311
3615495996144,16cyclictest3740285-21kworker/1:322:50:021
3615495996056,2cyclictest0-21swapper/122:20:391
3615495995943,15cyclictest3619050-21kworker/1:019:36:141
3615495995943,15cyclictest2364340-1kworker/1:2H20:24:571
3615495995942,16cyclictest3693625-21kworker/1:022:05:151
3615495995942,16cyclictest3631640-21kworker/1:020:00:481
3615495995941,17cyclictest3651088-21kworker/1:321:05:131
3615495995843,14cyclictest3669732-21kworker/1:121:58:341
3615495995843,14cyclictest3635387-21kworker/1:320:34:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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