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2025-05-03 - 01:25
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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 Fri May 02, 2025 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3020767997442,30cyclictest3075255-21kworker/1:209:55:181
3020767997141,28cyclictest3099770-21kworker/1:211:15:151
3020767997041,27cyclictest3031453-21kworker/1:107:55:181
3020767997039,29cyclictest3040957-21kworker/1:008:35:171
3020767996936,31cyclictest3022327-21kworker/1:007:15:161
3020767996842,25cyclictest972319-1kworker/1:0H11:10:001
3020767996833,19cyclictest972319-1kworker/1:0H08:29:431
3020767996833,19cyclictest972319-1kworker/1:0H08:29:421
3020767996734,31cyclictest3049267-21kworker/1:108:50:131
3020767996536,17cyclictest3040957-21kworker/1:008:15:181
3020767996438,16cyclictest3049267-21kworker/1:108:40:181
3020767996358,2cyclictest623-21rs:main1
3020767996260,1cyclictest0-21swapper/111:51:481
302076799620,61cyclictest0-21swapper/110:32:191
3020767996058,1cyclictest0-21swapper/107:33:131
3020767996038,19cyclictest972319-1kworker/1:0H12:34:431
3020767996037,22cyclictest3093334-21kworker/1:111:00:141
3020767995943,15cyclictest3109096-21kworker/1:111:45:141
3020767995943,15cyclictest3099770-21kworker/1:211:20:121
3020767995943,15cyclictest3077490-21kworker/1:110:03:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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