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2026-06-03 - 01:01
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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 Tue Jun 02, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1504696996845,20cyclictest1699305-21kworker/1:012:15:161
150469699670,65cyclictest0-21swapper/109:34:331
150469699670,65cyclictest0-21swapper/108:59:341
150469699660,64cyclictest0-21swapper/110:23:591
150469699660,64cyclictest0-21swapper/107:31:581
150469699650,63cyclictest0-21swapper/111:35:061
1504696996443,18cyclictest1618673-21kworker/1:110:44:591
1504696996360,2cyclictest0-21swapper/107:48:321
150469699630,62cyclictest0-21swapper/109:05:211
1504696996259,2cyclictest0-21swapper/107:22:331
150469699620,60cyclictest0-21swapper/107:39:331
1504696996158,2cyclictest0-21swapper/108:23:321
1504696996143,17cyclictest1542851-21kworker/1:109:10:151
1504696996056,2cyclictest0-21swapper/111:13:331
1504696996056,2cyclictest0-21swapper/110:59:321
1504696996045,14cyclictest1692408-21kworker/1:212:02:371
1504696996044,15cyclictest1524079-21kworker/1:208:19:031
1504696996042,16cyclictest1606618-21kworker/1:110:25:011
1504696996041,18cyclictest1678975-21kworker/1:111:55:151
1504696996041,18cyclictest1527158-21kworker/1:008:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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