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2026-01-12 - 04:49
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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 rackeslot5.osadl.org (updated Mon Jan 12, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
831399300,29cyclictest24514-21cron23:10:013
831399290,28cyclictest18986-21cron21:50:003
831399290,28cyclictest18448-21apt-get20:40:133
831099290,28cyclictest28579-21apt-get22:10:112
831099290,28cyclictest13706-21apt-get23:55:132
831099290,28cyclictest0-21swapper/220:45:002
831099290,28cyclictest0-21swapper/219:25:112
830899290,28cyclictest6728-21apt-get20:15:111
830899290,1cyclictest0-21swapper/121:30:001
8303992928,1cyclictest27132-21apt-get23:15:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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