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2026-04-10 - 04:27
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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 rack0slot0.osadl.org (updated Fri Apr 10, 2026 00:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2078021110,0sleep10-21swapper/122:32:271
1718821070,0sleep20-21swapper/222:15:132
1426521060,0sleep20-21swapper/222:21:552
1426521060,0sleep20-21swapper/222:21:542
301592860,0sleep20-21swapper/221:38:262
257072860,0sleep50-21swapper/523:47:405
48452840,1sleep40-21swapper/400:29:154
200752830,1sleep50-21swapper/521:12:175
295152810,0sleep40-21swapper/421:57:044
67142800,0sleep70-21swapper/723:46:397
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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