Re: [Xen-devel] Re: [rfc] [patch] "frame number" size in hypercall ABI

[Hollis Blanchard <hollisb@xxxxxxxxxx>]

On Apr 19, 2006, at 10:05 AM, Ewan Mellor wrote:

> On Wed, Apr 19, 2006 at 09:08:49AM -0500, Hollis Blanchard wrote:
>
> > (If we require a 64-bit libxc in this case, that will also require a
> > 64-bit python, and 64-bit versions of all the python modules. No
> > distribution, other than maybe Gentoo, currently does this, and it
> > would be a big PITA for them to do so.)
> Silence your heretic anti-Debian libels!  ;-)  Comparing them to 
> Gentoo,
> indeed...
>
> There is a Debian AMD64 / EM64T port, which will become official with 
> the next
> release (insert compulsory "some time in 2010" joke here).
Sorry for being unclear; I'm not talking about x86-64. AFAIK it is 
always a performance win to use 64-bit binaries on x86-64 because 
32-bit x86 is so bad.
This is not at all the case with 64-bit PowerPC: it is usually a 
performance loss to simply recompile 32-bit binaries as 64-bit. 
Accordingly, only some initially misguided PowerPC distributions are 
100% 64-bit.
--
Hollis Blanchard
IBM Linux Technology Center


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