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2026-06-16 - 15:50
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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 Tue Jun 16, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
571207996640,16cyclictest706653-21kworker/1:211:05:151
57120799651,63cyclictest0-21swapper/110:40:151
571207996361,1cyclictest0-21swapper/108:55:421
57120799630,62cyclictest603608-21kworker/1:308:54:441
571207996242,19cyclictest611551-21kworker/1:109:30:141
571207996159,1cyclictest0-21swapper/108:31:431
571207996159,1cyclictest0-21swapper/108:31:431
571207996157,2cyclictest0-21swapper/109:59:501
571207996157,2cyclictest0-21swapper/107:50:011
571207996156,3cyclictest0-21swapper/109:26:491
571207996145,15cyclictest668518-21kworker/1:110:25:131
571207996042,16cyclictest2553956-1kworker/1:2H08:15:141
571207996040,18cyclictest627050-21kworker/1:209:44:151
571207996040,18cyclictest605575-21kworker/1:009:10:151
571207996040,18cyclictest605575-21kworker/1:009:10:001
571207995943,15cyclictest711157-21kworker/1:011:20:151
571207995941,17cyclictest645919-21kworker/1:009:54:091
571207995941,17cyclictest2553956-1kworker/1:2H10:15:151
571207995940,18cyclictest611551-21kworker/1:109:24:441
571207995940,17cyclictest2553956-1kworker/1:2H10:00:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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