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2026-04-14 - 14:06
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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 Tue Apr 14, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1321199330,0cyclictest0-21swapper/300:05:203
1321199330,0cyclictest0-21swapper/300:05:203
1321199310,30cyclictest0-21swapper/323:20:173
1321199300,29cyclictest2789-21awk22:15:013
1320999300,29cyclictest9231-21cron21:19:592
1320999300,29cyclictest0-21swapper/220:05:122
13204993028,1cyclictest0-21swapper/100:00:021
1320499300,29cyclictest646-21polkitd23:35:021
1320999290,28cyclictest23555-21apt-get21:50:122
1320999290,28cyclictest0-21swapper/200:10:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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