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2026-05-11 - 13:09
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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 rackbslot7.osadl.org (updated Mon May 11, 2026 00:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22457213013,86sleep222472-21latency_hist19:01:252
226299910630,44cyclictest352-21runrttasks21:49:330
226299910546,24cyclictest0-21swapper/000:06:410
226299910535,27cyclictest7180-21rm00:00:070
226299910534,29cyclictest29633-21ssh22:48:460
226299910523,42cyclictest1913-21latency22:56:520
226299910439,24cyclictest0-21swapper/021:11:360
226299910438,27cyclictest32455-21sh21:06:160
226349910334,11cyclictest0-21swapper/119:41:351
226299910337,26cyclictest1782-21ssh21:07:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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