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2025-12-04 - 14:12
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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 rack0slot7.osadl.org (updated Thu Dec 04, 2025 00:46:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
114173199397396,1cyclictest0-21swapper/219:24:588
114177199363359,2cyclictest0-21swapper/1419:24:596
114177399336334,1cyclictest0-21swapper/1519:24:597
1141771993180,317cyclictest0-21swapper/1420:49:326
1141771993180,317cyclictest0-21swapper/1420:49:316
114172499290282,7cyclictest323925-21gnome-shell22:41:590
114176799289283,5cyclictest390842-21Renderer22:34:415
1141751992891,287cyclictest323925-21gnome-shell23:26:0614
114174899289282,6cyclictest390842-21Renderer21:21:5413
1141741992890,285cyclictest2319234-21dd00:16:1211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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