cputype FX-53

Gert Cuykens gert.cuykens at gmail.com
Sat Nov 20 15:12:00 PST 2004

On Sat, 20 Nov 2004 13:35:02 -0800, Peter Wemm <peter at wemm.org> wrote:
> On Friday 19 November 2004 11:14 pm, Gert Cuykens wrote:
> > Hi whats the cputype of a FX-53 please
> You don't need to set CPUTYPE yet.  If you really want to, you could use
> any of "k8", "opteron" or "athlon64".   The "k8" label is probably what
> you should use, if you really want to set something since that is the
> fundamental cpu core type that is shared across all the
> athlon64/opteron family at this point in time.  There will be  a k9 and
> k10 core at some point and it is probably safe to assume that they'll
> be different enough in features or optimizer strategies to merit a new
> gcc optimizer target.
> For 64 bit intel cpus, you can use "nocona".
> At some point, not setting CPUTYPE will target the lowest common
> features of both cpus, eg: no SSE3, no 3dnow, etc.  But for now, gcc
> doesn't use sse3 or 3dnow with the default settings.
> There is a small optimizer benefit to setting CPUTYPE="nocona" for intel
> cpus though.  It causes the gcc optimizer to use the pentium4
> insanely-long-pipeline optimizer strategies instead of something
> suitable for the AMD cpus.  It also seems to cause gcc to make extra
> effort to avoid partial register pipeline stalls.
> --
> Peter Wemm - peter at wemm.org; peter at FreeBSD.org; peter at yahoo-inc.com
> "All of this is for nothing if we don't go to the stars" - JMS/B5

ok thx did not understand much of it doh but i did understand i can
fill in cputype="hot air conditioning device" and it will still work
the same

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