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2024-07-16 - 08:33
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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 Mon Jul 15, 2024 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4005419997139,30cyclictest4004379-21kworker/1:007:20:151
4005419997137,32cyclictest4158830-21kworker/1:111:40:141
400541999680,66cyclictest0-21swapper/108:05:011
400541999670,2cyclictest0-21swapper/110:55:531
400541999660,2cyclictest0-21swapper/109:13:161
4005419996561,2cyclictest0-21swapper/109:05:421
4005419996460,2cyclictest4027928-21cron08:20:001
4005419996432,30cyclictest4164874-21kworker/1:212:15:001
400541999641,2cyclictest0-21swapper/110:50:301
4005419996259,2cyclictest0-21swapper/112:30:141
4005419995938,20cyclictest4164874-21kworker/1:212:36:531
400541999590,2cyclictest119450irq/16-snd_hda_09:55:001
4005419995841,15cyclictest3455367-1kworker/1:2H09:15:371
400541999581,54cyclictest0-21swapper/108:58:391
4005419995749,7cyclictest4146634-21cat11:20:221
4005419995741,15cyclictest4072664-21kworker/1:210:05:181
4005419995741,15cyclictest4072664-21kworker/1:210:05:001
4005419995741,15cyclictest4037443-21kworker/1:109:28:221
4005419995741,15cyclictest4014044-21kworker/1:207:35:161
4005419995741,14cyclictest4164874-21kworker/1:212:17:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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