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2026-06-27 - 05:52
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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 rack5slot2.osadl.org (updated Sat Jun 27, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149642206188,13sleep00-21swapper/019:06:180
151972202186,11sleep10-21swapper/119:09:201
149622196181,11sleep30-21swapper/319:06:173
151932125108,12sleep20-21swapper/219:09:172
13972420,0sleep30-21swapper/323:43:283
260822100,0sleep00-21swapper/023:39:570
1542399102,4cyclictest21351-21ssh22:50:000
25252280,0sleep20-21swapper/221:48:022
154239971,5cyclictest0-21swapper/019:45:110
154329960,6cyclictest0-21swapper/200:15:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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