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2026-07-01 - 02:45
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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 Wed Jul 01, 2026 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
411029636,44sleep00-21swapper/019:05:190
34802900,5chrt36-21kcompactd022:05:050
88392880,5chrt8835-21aten2.4_r3power23:50:160
5515997857,14cyclictest0-21swapper/021:55:130
304922780,7sleep130494-21latency_hist20:20:001
5515997554,12cyclictest0-21swapper/021:05:120
5522997445,11cyclictest26-21ksoftirqd/122:35:151
5515997416,20cyclictest0-21swapper/021:30:160
5522997241,11cyclictest26-21ksoftirqd/122:00:131
5515997246,20cyclictest14-21ksoftirqd/000:00:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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