My laptop is a Celeron 2.4Ghz and in my testing it was a fair bit faster with -march=pentium4. BUT!!! Note that the current GCC code produces bad SSE2 instructions and so Pentium4 should not be used. So use penium3 instead (which has sse support unlike i686).
> -----Original Message----- > From: Marius Mauch [mailto:[EMAIL PROTECTED] > Sent: Monday, October 20, 2003 3:40 PM > To: [EMAIL PROTECTED] > Subject: Re: [gentoo-user] i686 or pentium3 ? > > --Signature=_Mon__20_Oct_2003_22_40_21_+0200_arG00Uj2_5=t_/nV > Content-Type: text/plain; charset=US-ASCII > Content-Disposition: inlinen > Content-Transfer-Encoding: 7bit > > On 10/20/03 Andrej Kacian wrote: > > > Which setting in CFLAGS is better for intel celeron 2.2ghz - > > "-march=i686 -mcpu=i686" or "-march=pentium3 -mcpu=pentium3" > > > > Why? > > You could even use pentium4 (which would enable SSE2 optimizations). > > Marius > > -- > Public Key at http://www.genone.de/info/gpg-key.pub > > In the beginning, there was nothing. And God said, 'Let there be > Light.' And there was still nothing, but you could see a bit better. > > --Signature=_Mon__20_Oct_2003_22_40_21_+0200_arG00Uj2_5=t_/nV > Content-Type: application/pgp-signature > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.3 (GNU/Linux) > > iD8DBQE/lEg5WzrL1pM7SNcRAi/cAJ9u//1CpWJehmlSxyXi8YouU8G6bQCgiqcB > BpeZwU7km2QbGkdmoVU1UG4= > =U8fc > -----END PGP SIGNATURE----- > > --Signature=_Mon__20_Oct_2003_22_40_21_+0200_arG00Uj2_5=t_/nV-- -- [EMAIL PROTECTED] mailing list
