[alsa-devel] [RFC] How to perform audio offloading in none tunneled mode

Mark Brown broonie at kernel.org
Tue Sep 8 19:32:45 CEST 2015


On Tue, Sep 08, 2015 at 11:46:06AM -0500, Pierre-Louis Bossart wrote:

> What you are describing is feasible but has issues related to:
> - delay control
> - DSP scheduling (no real means to process data faster than real-time as you
> would want in a data-driven co-processor)
> There are also divergent views on the benefits of offloading intermediate
> operations to a resource-constrained co-processor, you might be better off
> doing everything on the host in terms of power consumption.

Indeed - there's also a big system complexity hit.  It does depend how
loaded things are if it's worth considering.  Part of the reason there's
no standard way to do it is that the benefits are sufficiently unclear
to be concerning.
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