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2026-07-07 - 07:20
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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 Jul 07, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
629735997542,31cyclictest639619-21kworker/1:119:45:121
629735996741,24cyclictest653810-21kworker/1:320:30:151
629735996633,31cyclictest708919-21kworker/1:222:05:141
629735996633,30cyclictest658801-21kworker/1:220:55:151
629735996560,3cyclictest0-21swapper/123:47:431
629735996542,21cyclictest104075-1kworker/1:0H22:00:151
629735996457,5cyclictest0-21swapper/100:00:121
629735996430,27cyclictest687887-21kworker/1:021:40:151
629735996359,2cyclictest0-21swapper/123:12:361
629735996340,21cyclictest797172-21kworker/1:023:35:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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