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2024-11-22 - 10:29
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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 rackaslot8.osadl.org (updated Fri Nov 22, 2024 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106542326294,20sleep20-21swapper/219:09:502
105212274240,23sleep10-21swapper/119:08:041
105882270215,42sleep30-21swapper/319:08:593
106572258224,22sleep00-21swapper/019:09:520
260512600,0sleep30-21swapper/323:03:353
230382180,0sleep00-21swapper/023:00:210
158812180,0sleep30-21swapper/323:20:213
168542170,0sleep10-21swapper/122:30:221
105342170,0sleep30-21swapper/322:50:303
1078299153,9cyclictest0-21swapper/221:37:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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