[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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