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2024-11-22 - 10:30
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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 rack5slot2.osadl.org (updated Fri Nov 22, 2024 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94342197181,11sleep10-21swapper/119:08:161
94032190173,12sleep00-21swapper/019:07:500
92832179163,11sleep30-21swapper/319:06:223
95372165145,15sleep20-21swapper/219:09:372
204752480,0sleep30-21swapper/320:35:003
209672460,0sleep10-21swapper/121:50:021
209672460,0sleep10-21swapper/121:50:011
120972460,0sleep10-21swapper/123:55:281
222362440,0sleep00-21swapper/022:06:010
97419970,5cyclictest0-21swapper/000:00:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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