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2024-02-23 - 09:05
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack0slot3.osadl.org (updated Fri Feb 23, 2024 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18246182374368,4sleep40-21swapper/419:07:5610
18247142361319,15sleep150-21swapper/1519:08:557
18244792360318,13sleep80-21swapper/819:06:0614
18245322356339,11sleep130-21swapper/1319:06:445
18247032354314,32sleep70-21swapper/719:08:4713
18247502353312,14sleep140-21swapper/1419:09:266
18244472344323,14sleep50-21swapper/519:05:4811
18244602343320,14sleep120-21swapper/1219:05:554
18244552339319,13sleep90-21swapper/919:05:5215
18247012336314,14sleep60-21swapper/619:08:4612
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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