[LAD] vectorization

Jens M Andreasen jens.andreasen at comhem.se
Wed Apr 16 10:17:23 UTC 2008

On Wed, 2008-04-16 at 10:41 +0200, Christian Schoenebeck wrote:

> So in practice, if the results are very close together anyway, probably not 
> even noticeable, I would definitely prefer to spend that time on other tasks 
> and enjoy the fact that the implementation compiles with very good 
> performance results on other architectures as well.

Then you will probably like this run of ./mixdown:

Benchmarking mixdown (WITH coeff):
pure C++                : 150 ms <-- pretty good, eh? ;-)
ASM SSE                 : 140 ms
GCC vector extensions   : 150 ms

This is with -ftree-vectorize added to your compile options.

> CU
> Christian
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