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2023-10-01 - 01:45
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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 rack8slot4.osadl.org (updated Sat Sep 30, 2023 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22925122246182,24sleep70-21swapper/707:09:437
22925182223192,21sleep40-21swapper/407:09:484
22923302223192,21sleep50-21swapper/507:07:085
22924562220190,20sleep10-21swapper/107:08:571
22925002219188,21sleep00-21swapper/007:09:360
22923542219189,21sleep20-21swapper/207:07:292
22925092218182,25sleep60-21swapper/607:09:426
22923372217186,21sleep30-21swapper/307:07:143
2292749995958,1cyclictest0-21swapper/410:56:044
2292751995150,1cyclictest0-21swapper/510:47:255
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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