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2023-12-10 - 17:06
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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 rack8slot3.osadl.org (updated Sun Dec 10, 2023 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
265782229108,116sleep30-21swapper/307:09:023
263172180108,68sleep10-21swapper/107:06:001
264082176107,64sleep00-21swapper/007:07:030
264622161143,14sleep20-21swapper/207:07:442
2375421020,6sleep30-21swapper/310:51:033
77852940,6sleep30-21swapper/312:10:253
294752880,6sleep30-21swapper/309:55:003
2691499374,32cyclictest0-21swapper/209:28:552
41322340,1sleep24134-21sed10:00:332
2691499329,22cyclictest0-21swapper/211:33:432
2691499324,26cyclictest0-21swapper/209:19:412
2691499315,25cyclictest0-21swapper/209:50:482
2691399316,24cyclictest0-21swapper/109:42:291
2691499309,20cyclictest0-21swapper/211:08:152
2691499309,20cyclictest0-21swapper/210:17:312
2691499307,22cyclictest0-21swapper/212:08:582
2691499307,22cyclictest0-21swapper/210:32:462
2691499307,22cyclictest0-21swapper/210:29:492
2691499307,22cyclictest0-21swapper/209:35:572
2691499307,22cyclictest0-21swapper/209:34:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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