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2026-06-05 - 06:29
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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 Jun 05, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76044999661,3cyclictest872967-21fschecks_count22:35:141
760449996561,2cyclictest0-21swapper/123:30:341
76044999650,63cyclictest0-21swapper/119:15:001
760449996342,19cyclictest833443-21kworker/1:321:55:001
760449996339,22cyclictest784731-21kworker/1:120:25:131
760449996259,2cyclictest0-21swapper/121:03:391
760449996259,2cyclictest0-21swapper/119:45:301
760449996158,2cyclictest0-21swapper/121:35:341
760449996044,15cyclictest1322914-1kworker/1:0H21:27:091
760449996043,16cyclictest796341-21kworker/1:221:05:131
760449996042,17cyclictest932403-21kworker/1:200:00:031
760449996039,20cyclictest1322914-1kworker/1:0H00:15:011
760449995944,14cyclictest793995-21kworker/1:020:55:151
760449995942,16cyclictest793995-21kworker/1:021:20:161
760449995942,16cyclictest793995-21kworker/1:021:10:151
760449995855,2cyclictest0-21swapper/123:55:351
760449995843,14cyclictest932403-21kworker/1:223:48:051
760449995843,14cyclictest865463-21kworker/1:022:41:381
760449995843,14cyclictest859685-21kworker/1:122:25:151
760449995843,14cyclictest772129-21kworker/1:119:55:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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