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2026-03-10 - 23:29
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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 rackeslot3.osadl.org (updated Tue Mar 10, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1680253996461,2cyclictest0-21swapper/110:03:231
168025399640,62cyclictest0-21swapper/108:05:151
168025399630,62cyclictest0-21swapper/110:54:431
1680253996058,1cyclictest0-21swapper/107:20:261
1680253996041,17cyclictest3514121-1kworker/1:2H09:58:541
168025399600,59cyclictest0-21swapper/107:38:341
1680253995956,2cyclictest0-21swapper/111:49:201
1680253995955,2cyclictest0-21swapper/111:02:241
1680253995942,16cyclictest1733522-21kworker/1:109:30:131
1680253995852,4cyclictest1726726-21cron09:20:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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