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2026-05-10 - 03:56
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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 Sun May 10, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271921040,6chrt2716-21grep20:25:371
271921040,6chrt2716-21grep20:25:371
625729821,32sleep10-21swapper/119:08:571
6548998446,27cyclictest26-21ksoftirqd/119:15:131
62432837,27sleep00-21swapper/019:08:480
6548998043,27cyclictest26-21ksoftirqd/123:30:131
6548997941,24cyclictest26-21ksoftirqd/123:35:131
6543997856,12cyclictest0-21swapper/023:50:110
6543997615,54cyclictest0-21swapper/021:30:140
6548997541,24cyclictest26-21ksoftirqd/121:35:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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