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2026-08-08 - 19:12
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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 Sat Aug 08, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2139927635,25sleep10-21swapper/107:06:511
21652750,6sleep00-21swapper/007:40:390
21879997435,15cyclictest14-21ksoftirqd/010:59:590
21883997131,35cyclictest26-21ksoftirqd/110:58:131
21879997129,38cyclictest14-21ksoftirqd/007:29:200
2142527119,42sleep00-21swapper/007:07:080
21883997029,35cyclictest26-21ksoftirqd/111:53:351
21879997044,18cyclictest22974-21apt-get11:45:140
21879997044,18cyclictest22974-21apt-get11:45:140
21879997037,18cyclictest14-21ksoftirqd/010:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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