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2026-06-26 - 03:08
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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 20 highest latencies:
System rackeslot3.osadl.org (updated Thu Jun 25, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
947446997134,35cyclictest545832-1kworker/1:2H09:15:011
947446997134,35cyclictest545832-1kworker/1:2H09:15:001
947446996742,14cyclictest1019010-21kworker/1:110:00:141
947446996542,21cyclictest545832-1kworker/1:2H07:50:001
947446996539,16cyclictest953995-21kworker/1:207:35:131
947446996539,16cyclictest953995-21kworker/1:207:35:121
947446996461,2cyclictest0-21swapper/112:10:321
947446996441,14cyclictest1140683-1kworker/1:0H12:20:141
947446996341,14cyclictest974342-21kworker/1:008:35:011
947446996338,17cyclictest1153733-21kworker/1:012:30:011
94744699631,61cyclictest0-21swapper/110:30:131
947446996259,2cyclictest0-21swapper/109:15:061
947446996246,15cyclictest1153733-21kworker/1:012:25:371
94744699620,1cyclictest0-21swapper/112:04:551
947446996159,1cyclictest0-21swapper/109:45:171
947446996045,14cyclictest966878-21kworker/1:208:15:141
947446996042,17cyclictest545832-1kworker/1:2H08:00:161
947446996041,17cyclictest965096-21kworker/1:008:05:141
947446995957,1cyclictest0-21swapper/111:59:441
947446995957,1cyclictest0-21swapper/108:28:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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