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2026-01-07 - 19:58
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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 10 highest latencies:
System rack1slot8.osadl.org (updated Wed Jan 07, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
994099888825,51cyclictest0-21swapper/007:10:140
994299811746,49cyclictest0-21swapper/107:10:141
96842520502,13sleep10-21swapper/107:07:461
95692513492,15sleep00-21swapper/007:06:380
994099452389,51cyclictest0-21swapper/007:53:360
994299376311,49cyclictest0-21swapper/107:53:361
99409911495,14cyclictest0-21swapper/010:36:590
200952930,4sleep120094-21ssh10:57:361
228699910,5rtkit-daemon2285-21rtkit-daemon11:47:281
228699870,5rtkit-daemon2285-21rtkit-daemon11:37:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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