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2026-01-05 - 02:42
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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 20 highest latencies:
System rack3slot6.osadl.org (updated Mon Jan 05, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2230129629,23sleep10-21swapper/119:09:231
2213329119,27sleep00-21swapper/019:08:060
22506999017,59cyclictest0-21swapper/120:20:151
2250699898,66cyclictest14938-21apt-get21:50:151
22506998918,61cyclictest0-21swapper/121:35:141
2250699887,65cyclictest6166-21apt-get21:25:141
22506998817,56cyclictest0-21swapper/121:00:151
22506998815,60cyclictest0-21swapper/122:00:131
22506998729,51cyclictest1-21systemd00:00:011
2250699867,64cyclictest24839-21apt-get19:15:161
22506998617,57cyclictest0-21swapper/122:45:141
22506998617,54cyclictest0-21swapper/121:55:131
22506998616,57cyclictest0-21swapper/122:15:121
22506998614,60cyclictest0-21swapper/123:05:151
22506998614,60cyclictest0-21swapper/119:10:131
22506998613,61cyclictest0-21swapper/123:30:121
22506998613,61cyclictest0-21swapper/121:20:141
2250699859,63cyclictest548-21runrttasks00:35:151
2250699858,63cyclictest12627-21apt-get23:15:141
22506998524,48cyclictest0-21swapper/119:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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