[alsa-devel] performance between access mothods!

Guilherme Longo grlongo.ireland at gmail.com
Sun Jul 5 14:03:23 CEST 2009

Hi all!

I came across a doubt regarding the the access mode between application 
and PCM device.
It is a hardware parameter related property and there are 5 different 
types available:


taking in account that these first 3 parameters has direct communication 
with the memory, that means a higher speed operation? And the fact of 
the interleaved has all the samples mixed together , makes any 
difference in performance in comparison to the noninterleaved that has 
samples stored on different buffers?

Thanks in advanced

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