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2026-07-18 - 21:07
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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 rack3slot6.osadl.org (updated Sat Jul 18, 2026 12:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121279910230,59cyclictest26-21ksoftirqd/107:50:131
1152129720,32sleep10-21swapper/107:05:461
12122999217,61cyclictest0-21swapper/010:10:150
12122999016,59cyclictest0-21swapper/007:40:140
12127998946,27cyclictest26-21ksoftirqd/109:50:131
12122998815,63cyclictest0-21swapper/012:00:170
12122998813,62cyclictest0-21swapper/010:15:140
12122998813,59cyclictest0-21swapper/009:45:160
12122998716,55cyclictest0-21swapper/008:45:120
12122998714,57cyclictest0-21swapper/010:00:120
12122998713,62cyclictest0-21swapper/008:50:150
12122998622,53cyclictest0-21swapper/009:30:150
12122998622,53cyclictest0-21swapper/009:30:150
12122998618,58cyclictest0-21swapper/012:15:130
12122998615,59cyclictest0-21swapper/011:55:130
12122998614,57cyclictest0-21swapper/012:10:150
12122998516,54cyclictest0-21swapper/007:20:110
12122998515,56cyclictest0-21swapper/007:25:120
12122998514,60cyclictest0-21swapper/011:40:130
12122998514,60cyclictest0-21swapper/011:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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