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2026-07-25 - 05:41
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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 Jul 25, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239262200189,8sleep10-21swapper/119:07:351
239132189173,11sleep00-21swapper/019:07:270
238762184167,12sleep30-21swapper/319:06:573
237692163144,14sleep20-21swapper/219:05:352
309702480,0sleep30-21swapper/300:15:123
259142470,0sleep30-21swapper/323:06:293
139692450,0sleep30-21swapper/300:22:433
266122440,0sleep00-21swapper/022:35:000
234602120,0sleep00-21swapper/000:10:400
242939991,4cyclictest27032-21munin-run21:30:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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