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2026-05-02 - 10:34
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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 10 highest latencies:
System rack5slot3.osadl.org (updated Sat May 02, 2026 00:57:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
101369973455,81cyclictest0-21swapper/123:25:161
1013599710197,296cyclictest0-21swapper/000:40:310
101429968349,253cyclictest0-21swapper/723:45:227
10136996419,500cyclictest0-21swapper/123:54:111
101369961363,84cyclictest0-21swapper/122:07:041
101379961018,383cyclictest0-21swapper/221:50:322
1013799592124,466cyclictest0-21swapper/221:46:392
101369959083,42cyclictest0-21swapper/100:23:351
1014299588119,466cyclictest0-21swapper/721:46:397
101429958332,211cyclictest73-21ksoftirqd/721:39:297
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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