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2025-12-06 - 16:32
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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 Dec 06, 2025 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
197512235220,10sleep10-21swapper/107:05:581
198272187171,12sleep00-21swapper/007:06:580
199172186171,11sleep30-21swapper/307:08:093
198742183164,14sleep20-21swapper/207:07:362
166902460,0sleep016694-21gltestperf08:05:140
166002460,0sleep20-21swapper/209:10:132
127882460,0sleep20-21swapper/209:55:422
5702390,0sleep10-21swapper/112:00:031
25132390,0sleep00-21swapper/009:19:160
154042110,0sleep00-21swapper/011:18:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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