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2023-11-29 - 17:08
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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
Characteristics of the 20 highest latencies:
System rack7slot1.osadl.org (updated Wed Nov 29, 2023 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3905210951,52sleep10-21swapper/107:05:351
398629867,26sleep30-21swapper/307:06:133
409328860,23sleep20-21swapper/207:07:252
419228345,33sleep00-21swapper/007:08:230
453299499,23cyclictest0-21swapper/009:10:260
453299427,20cyclictest0-21swapper/010:35:250
453299427,20cyclictest0-21swapper/010:35:250
4532994117,21cyclictest0-21swapper/011:10:300
4532994117,21cyclictest0-21swapper/011:10:300
453799399,27cyclictest0-21swapper/210:23:382
453399395,31cyclictest0-21swapper/110:15:251
453299399,27cyclictest0-21swapper/009:37:380
453299398,28cyclictest0-21swapper/011:41:300
4532993913,23cyclictest0-21swapper/010:45:520
266202395,13sleep30-21swapper/308:44:193
265852395,13sleep20-21swapper/208:44:022
4537993816,19cyclictest0-21swapper/210:06:092
4537993816,19cyclictest0-21swapper/210:06:092
4537993813,22cyclictest0-21swapper/212:10:452
453299386,16cyclictest0-21swapper/012:09:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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