Re: CPU results on Freescale i.MX

[Christopher Berardi <cberardi%natoufa.com@localhost>]

On Mon, Jan 24, 2011 at 01:57:51PM +0000, David Laight wrote:
> On Mon, Jan 24, 2011 at 06:43:52AM -0500, Christopher Berardi wrote:
> Something odd is going on.
> The ARM will be using soft float - so should be much slower than
> either x86 system even at the same clock speed!
> 
> You then need to look at exactly which form of FP sqrt() the x86
> systema are using. Could be soft, could be the i386 fp stack, or
> could be the SSE(n).
> In general the latter is fastest.
> However gcc may not generate the sse instructions for netbsd because
> we still, build binaries that will run on a 486.
> 
>       David
> 
> -- 
> David Laight: david%l8s.co.uk@localhost

Interesting. I am new to ARM so I don't know any of this.



-- 
Christopher Berardi
http://www.natoufa.com/

Be still, and know that I am God (Psalms 46:10)