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2026-04-11 - 21:34
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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 Sat Apr 11, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2215299320,31cyclictest0-21swapper/212:20:132
2215199320,31cyclictest0-21swapper/112:20:131
2215099300,29cyclictest9402-21perf09:00:000
22153992928,0cyclictest0-21swapper/312:20:143
2215399290,1cyclictest3843-21ls07:40:023
2215399290,1cyclictest11701-21cron09:05:013
22152992928,0cyclictest0-21swapper/207:20:132
2215299290,28cyclictest0-21swapper/211:35:012
2215299290,28cyclictest0-21swapper/207:39:262
2215299290,1cyclictest5010-21apt-get08:50:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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