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2026-06-06 - 07:04
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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 06, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1317241997040,28cyclictest1336660-21kworker/1:120:15:131
1317241996938,29cyclictest1299760-1kworker/1:1H22:55:101
1317241996562,2cyclictest0-21swapper/119:27:101
1317241996562,2cyclictest0-21swapper/119:27:101
131724199650,63cyclictest0-21swapper/123:01:041
1317241996461,2cyclictest0-21swapper/120:48:001
1317241996461,2cyclictest0-21swapper/119:40:061
1317241996435,27cyclictest1336660-21kworker/1:120:10:161
1317241996336,26cyclictest1317087-21kworker/1:219:20:161
1317241996336,26cyclictest1317087-21kworker/1:219:20:161
1317241996335,27cyclictest1493012-21kworker/1:323:55:151
1317241996329,32cyclictest1299760-1kworker/1:1H00:22:001
131724199630,1cyclictest0-21swapper/120:21:451
1317241996259,2cyclictest0-21swapper/121:09:101
1317241996241,19cyclictest1411066-21kworker/1:122:30:141
1317241996239,22cyclictest1299760-1kworker/1:1H19:20:001
1317241996235,26cyclictest1411066-21kworker/1:122:20:131
1317241996235,26cyclictest1411066-21kworker/1:122:20:131
1317241996234,27cyclictest1299760-1kworker/1:1H22:15:151
131724199620,61cyclictest0-21swapper/100:05:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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