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2025-11-23 - 21:02
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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 Sun Nov 23, 2025 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1574621380,3sleep52799499cyclictest12:39:295
3020221110,0sleep60-21swapper/610:30:206
89032830,0sleep10-21swapper/112:24:261
89032830,0sleep10-21swapper/112:24:261
169912790,6sleep10-21swapper/110:23:581
79932770,0sleep50-21swapper/511:18:435
37572740,0sleep50-21swapper/510:49:585
37572740,0sleep50-21swapper/510:49:575
273152740,0sleep20-21swapper/211:54:222
22072740,0sleep40-21swapper/410:07:504
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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