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2026-06-16 - 05:23
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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 rack0slot5.osadl.org (updated Tue Jun 16, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34134309957610,44cyclictest0-21swapper/722:10:1313
341344899525522,2cyclictest3613066-21kworker/11:2+i915-unordered23:18:133
34134179952317,504cyclictest0-21swapper/420:48:1310
34134599951122,28cyclictest0-21swapper/1423:09:136
3413448995019,490cyclictest0-21swapper/1121:09:133
3413415994964,491cyclictest0-21swapper/319:45:149
341340699494492,2cyclictest3552574-21kworker/u64:8+events_unbound22:13:131
34134179949315,59cyclictest0-21swapper/422:42:5810
34134179949315,59cyclictest0-21swapper/422:42:5810
341344499491490,1cyclictest3596366-21kworker/10:1+i915-unordered23:08:132
34134599948420,59cyclictest0-21swapper/1422:59:136
34134599947918,460cyclictest0-21swapper/1422:48:136
34134599947918,460cyclictest0-21swapper/1422:48:136
3413456994794,26cyclictest0-21swapper/1322:11:135
341344499475475,0cyclictest3689589-21kworker/10:2+i915-unordered00:31:132
34134229947529,29cyclictest0-21swapper/521:54:3511
34134369947426,447cyclictest106-21ksoftirqd/900:28:1315
34134229947325,30cyclictest0-21swapper/523:00:5711
34134229947225,30cyclictest0-21swapper/520:19:3411
34134229947225,29cyclictest0-21swapper/522:00:5811
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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