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2026-06-18 - 07:42
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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 Thu Jun 18, 2026 00:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11741213715,87sleep211761-21unin-run18:58:542
11826991293,88cyclictest20294-21ssh22:49:070
11826991293,88cyclictest20294-21ssh22:49:070
1147221286,16sleep00-21swapper/018:55:580
118319911390,16cyclictest0-21swapper/121:19:281
118319911390,16cyclictest0-21swapper/121:19:281
359721020,7sleep30-21swapper/321:27:143
118359910285,9cyclictest0-21swapper/200:10:042
118319910186,8cyclictest0-21swapper/123:09:271
247022980,9sleep224701-21ssh23:49:462
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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