On Sat, 2004-09-25 at 18:09, Alan Cox wrote:
On Sat, Sep 25, 2004 at 11:09:42PM +0200, Arjan van de Ven wrote:
> in theory we compile all of fedora core with -mtune=i686 (or
> -mtune=pentium4 nowadays). however that only actually happens if
> packages propagate the RPM_OPT_FLAGS into the CFLAGS properly; almost
> all but not quite not all packages actually do this.
I noticed a curiosity playing with this that perhaps the gcc folks can
explain the right choice for - on Dothan -mtune=i686 is a lot faster than
tuning for pentium4.
AFAIK there's a -march=pentium-m in gcc 3.4.x. Does that imply that
-mtune=pentium-m exists?
Dax