Re: Silly question

[Allen Briggs <briggs%netbsd.org@localhost>]

On Sat, Sep 06, 2008 at 06:49:05PM -0400, Perry E. Metzger wrote:
> It is very application dependent. The AMD64 architecture has more
> registers, and the registers are wider, so for some applications you
> can get significant speedup. On the other hand, you also get wider
> pointers and such, and those consume more cache and memory. You should
> benchmark if you're doing any sort of performance critical application
> to figure out which is better for your app.

That said, I think there's been more optimization work done on the i386
code, so there's probably a lot of room for improvement in some of the
lower-level library routines on amd64.

-allen

-- 
Allen Briggs  |  http://www.ninthwonder.com/~briggs/  |  
briggs%ninthwonder.com@localhost