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2025-11-03 - 20:44
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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 Mon Nov 03, 2025 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
250622196179,12sleep00-21swapper/007:08:550
249952196181,10sleep10-21swapper/107:08:031
248112178159,14sleep30-21swapper/307:05:413
251092174158,12sleep20-21swapper/207:09:342
193862490,0sleep10-21swapper/110:13:041
298902460,0sleep10-21swapper/109:30:111
271902440,0sleep10-21swapper/112:25:431
275282430,0sleep20-21swapper/211:21:292
150172430,0sleep10-21swapper/111:15:171
174242370,0sleep10-21swapper/109:00:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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