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2025-04-02 - 04:17
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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 rackcslot6.osadl.org (updated Wed Apr 02, 2025 00:46:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34453499382380,1cyclictest403951-21kworker/1:121:21:021
344534993810,380cyclictest0-21swapper/122:24:021
34453499380379,1cyclictest631123-21kworker/1:020:12:031
34453499380378,1cyclictest631123-21kworker/1:019:42:021
344534993800,1cyclictest0-21swapper/119:23:021
34453499378376,1cyclictest403951-21kworker/1:121:27:021
34453499377375,1cyclictest569179-21kworker/1:023:38:021
34453499377375,1cyclictest569179-21kworker/1:023:38:021
34453499377375,1cyclictest569179-21kworker/1:000:17:021
34453499376375,1cyclictest0-21swapper/122:46:021
34453499376374,1cyclictest403951-21kworker/1:123:11:021
34453499376374,1cyclictest0-21swapper/123:01:021
34453499375372,2cyclictest569179-21kworker/1:000:23:021
34453499374373,1cyclictest0-21swapper/121:15:021
34453499374371,2cyclictest403951-21kworker/1:121:33:031
34453499373372,1cyclictest0-21swapper/123:24:021
34453499373372,1cyclictest0-21swapper/121:35:021
34453499373371,1cyclictest569179-21kworker/1:000:11:021
34453499373371,1cyclictest403951-21kworker/1:122:01:021
34453499373371,1cyclictest0-21swapper/119:50:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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