Re: Double buffering

Hi,

On Thu, 3 May 2012, Joel Roth wrote:

> According to 'man ecasoundrc' the default value of the
> 'bmode-defaults-nonrt' setting is no double buffering.
>
> Is there any situation that one would *not* want double
> buffering?

for any batch/offline processing. Double-buffering consume a lot of 
memory, and causes additional memory copy traffic. So if you are just 
reading from files, processing, and writing to another set of files, 
double-buffering does not buy you anything. But for any use-case where you 
are reading and/or writing to timing sensitive objects (ALSA, JACK, 
rtnull), you'll benefit from double-buffering.

In ecasoundrc defaults, double-buffering is only disabeld in the 'nonrt' 
profile and that applies only in he above case where there are no 
real-time inputs nor outputs.

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