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2026-05-04 - 07:27
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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 rack1slot3.osadl.org (updated Mon May 04, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260214799142,11cyclictest0-21swapper/319:45:173
260214799140,12cyclictest0-21swapper/322:50:113
260214799140,12cyclictest0-21swapper/320:35:133
2602147991310,1cyclictest0-21swapper/321:10:123
260214799130,11cyclictest0-21swapper/320:10:123
260214799120,1cyclictest0-21swapper/322:45:133
260214799120,1cyclictest0-21swapper/320:45:133
260214799120,11cyclictest0-21swapper/323:35:203
260214799120,11cyclictest0-21swapper/321:35:203
260214799120,11cyclictest0-21swapper/320:35:003
260214799120,11cyclictest0-21swapper/319:30:173
260214799120,11cyclictest0-21swapper/300:14:203
2602147991110,0cyclictest0-21swapper/322:55:113
2602147991110,0cyclictest0-21swapper/320:40:113
260214799110,10cyclictest0-21swapper/320:50:163
260214799110,10cyclictest0-21swapper/319:50:013
260214799110,0cyclictest0-21swapper/323:05:013
260214799110,0cyclictest0-21swapper/321:55:123
260214799110,0cyclictest0-21swapper/321:40:123
260214799110,0cyclictest0-21swapper/321:20:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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