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2026-08-13 - 15:21
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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 Thu Aug 13, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1190421400,4sleep51568899cyclictest10:03:375
2207721200,0sleep30-21swapper/311:27:093
2826621190,0sleep40-21swapper/410:55:054
2660821150,0sleep50-21swapper/511:44:195
294521120,0sleep60-21swapper/609:41:496
728421100,2sleep20-21swapper/210:27:392
196832880,1sleep60-21swapper/610:41:296
44432780,0sleep20-21swapper/211:25:012
296072770,1sleep229608-21tty09:45:142
222792750,0sleep20-21swapper/211:51:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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