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2026-05-31 - 13:40
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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 Sun May 31, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2261199905825,56cyclictest0-21swapper/007:10:030
2261299838760,44cyclictest0-21swapper/107:10:031
2261199429350,50cyclictest0-21swapper/007:24:270
2261299362285,46cyclictest0-21swapper/107:24:271
22612999815,63cyclictest0-21swapper/110:01:591
2261199925,37cyclictest0-21swapper/007:30:010
22611999217,29cyclictest0-21swapper/009:24:590
22611999124,21cyclictest0-21swapper/009:50:160
2261199906,41cyclictest0-21swapper/009:45:520
228699890,5rtkit-daemon2285-21rtkit-daemon07:40:171
2261199897,39cyclictest0-21swapper/012:39:200
2261199895,32cyclictest0-21swapper/011:55:010
2261199889,34cyclictest0-21swapper/011:19:060
2261199885,25cyclictest0-21swapper/011:10:010
22612998716,47cyclictest0-21swapper/108:06:591
2261199877,35cyclictest0-21swapper/012:10:180
2261199866,27cyclictest0-21swapper/012:21:000
2261199865,25cyclictest0-21swapper/011:45:010
2261199856,70cyclictest0-21swapper/007:55:170
2261199856,37cyclictest0-21swapper/009:35:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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