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2023-12-01 - 04:05
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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 10 highest latencies:
System rackdslot0.osadl.org (updated Fri Dec 01, 2023 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
834599431430,1cyclictest0-21swapper/020:41:020
834699429428,1cyclictest0-21swapper/119:17:021
834699419416,1cyclictest0-21swapper/123:33:021
834699410409,1cyclictest0-21swapper/123:38:011
834699410409,0cyclictest0-21swapper/120:26:011
834699391380,10cyclictest0-21swapper/123:11:021
834799317304,13cyclictest8501-21kworker/2:219:17:022
8346993090,308cyclictest0-21swapper/120:21:591
834699308302,5cyclictest20271-21gnome-shell22:46:591
834799307306,0cyclictest0-21swapper/223:33:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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