Re: [Dri-devel] optimize this code...

[Gareth H. <ga...@va...>]

Gareth Hughes wrote:
> 
> We'll need code like this in the future anyway, so here's a couple of
> sample implementations.
> 
> setup_elts() is the original code, and setup_elts_forward() is a
> forward-counting loop as someone suggested.  setup_elts_pII_mmx() is
> regular MMX code, while setup_elts_pIII_mmx() uses prefetching and
> streaming stores.
> 
>                                 elts/second
> 
> setup_elts                        26.4 M
> setup_elts_forward                25.8 M
> setup_elts_pII_mmx                41.2 M
> setup_elts_pIII_mmx               71.7 M

                                    ^^^^^^ 77.8 M - oops

System: 700MHz PIII, 256MB RAM (IBM ThinkPad A20)

-- Gareth