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2025-05-21 - 01:36
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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 May 20, 2025 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2519402996735,26cyclictest2609582-21kworker/1:111:50:151
2519402996664,1cyclictest0-21swapper/107:17:591
2519402996663,2cyclictest0-21swapper/111:57:211
2519402996663,2cyclictest0-21swapper/107:51:541
251940299650,63cyclictest0-21swapper/109:05:551
251940299640,62cyclictest0-21swapper/108:38:211
2519402996360,2cyclictest0-21swapper/110:36:581
2519402996345,17cyclictest2539827-21kworker/1:008:10:151
2519402996339,22cyclictest2929992-1kworker/1:2H10:35:001
2519402996242,18cyclictest2536526-21kworker/1:108:15:271
2519402996241,19cyclictest2929992-1kworker/1:2H08:58:241
251940299621,1cyclictest0-21swapper/107:46:471
2519402996142,18cyclictest2619310-21kworker/1:212:23:491
2519402996142,18cyclictest2600844-21kworker/1:211:17:551
2519402996142,17cyclictest2571137-21kworker/1:010:04:561
2519402996139,20cyclictest2549507-21kworker/1:008:40:151
2519402996056,2cyclictest0-21swapper/108:46:151
2519402996042,17cyclictest2581398-21kworker/1:111:00:151
2519402996042,17cyclictest2581398-21kworker/1:111:00:141
2519402996042,17cyclictest2571137-21kworker/1:009:55:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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