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2026-06-11 - 16:29
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Thu Jun 11, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29526999354,13cyclictest0-21swapper/107:10:031
2952699892838,29cyclictest0-21swapper/107:25:151
2952599786721,59cyclictest0-21swapper/007:10:030
291472581561,13sleep10-21swapper/107:06:301
294732532509,15sleep00-21swapper/007:09:490
2286991070,4rtkit-daemon2285-21rtkit-daemon10:30:310
12742960,39sleep12952699cyclictest07:20:141
29525998913,34cyclictest0-21swapper/012:00:190
29525998835,16cyclictest0-21swapper/012:38:330
29525998835,16cyclictest0-21swapper/012:38:330
2952599876,44cyclictest0-21swapper/012:07:480
29525998717,27cyclictest0-21swapper/009:55:370
2952599868,37cyclictest0-21swapper/011:46:310
2952599867,35cyclictest0-21swapper/011:45:010
29525998622,24cyclictest0-21swapper/010:45:110
29525998416,33cyclictest0-21swapper/011:13:550
29525998214,32cyclictest0-21swapper/012:25:240
2952599816,38cyclictest0-21swapper/011:30:200
2952599815,44cyclictest0-21swapper/009:51:000
29525998132,16cyclictest0-21swapper/009:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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