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2026-06-25 - 10:39
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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 rack3slot6.osadl.org (updated Thu Jun 25, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10157210014,39sleep00-21swapper/019:07:490
1014029419,30sleep10-21swapper/119:07:411
10551998333,45cyclictest26-21ksoftirqd/121:34:281
43212760,6chrt261ksoftirqd/121:50:291
10551997052,12cyclictest26-21ksoftirqd/122:40:111
10549996946,17cyclictest0-21swapper/020:05:120
1054999674,55cyclictest5381-21apt-get23:25:110
10551996623,39cyclictest26-21ksoftirqd/123:00:371
1054999658,27cyclictest14-21ksoftirqd/000:00:240
1054999657,16cyclictest0-21swapper/022:55:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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