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2026-06-01 - 15:15
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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 Mon Jun 01, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9778214689,22sleep10-21swapper/107:05:291
107369910878,20cyclictest14-21ksoftirqd/011:10:140
107369910878,20cyclictest14-21ksoftirqd/011:10:140
107369910676,20cyclictest14-21ksoftirqd/008:50:140
107369910575,20cyclictest14-21ksoftirqd/011:20:130
107369910474,18cyclictest14-21ksoftirqd/008:10:260
107369910470,19cyclictest14-21ksoftirqd/011:00:140
107369910373,20cyclictest14-21ksoftirqd/007:55:130
107369910273,20cyclictest14-21ksoftirqd/011:05:140
107369910272,19cyclictest14-21ksoftirqd/009:10:130
107369910171,17cyclictest0-21swapper/010:15:130
107369910072,18cyclictest14-21ksoftirqd/007:50:130
10736999970,18cyclictest14-21ksoftirqd/007:40:120
10736999866,18cyclictest0-21swapper/008:15:160
10736999763,23cyclictest14-21ksoftirqd/010:35:140
10736999567,18cyclictest14-21ksoftirqd/010:30:140
10736999464,18cyclictest14-21ksoftirqd/012:30:120
10736999440,42cyclictest14-21ksoftirqd/010:40:140
10736999363,20cyclictest14-21ksoftirqd/008:25:250
10736999314,63cyclictest0-21swapper/007:35:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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