On 07:54 Fri 03 Mar , Rumen Yotov wrote: > On Friday 03 March 2006 06:13, Statux wrote: > > I currently have a generic i686 setup on my P4 with HT and EM64T. I've > > come to realize that I could be doing better so I've started considering > > switching over to use EM64T (nocona). I figure that I'll be switching my > > CHOST to x86_64-pc-linux-gnu and my march variable in CFLAGS to nocona > > (from the i686 it's set to now), rebootstrap and then do a full > > system/world rebuild but I haven't been able to find any documentation > > regarding which profile I should be using. I'm currently using > > default-linux/x86/2006.0 but which one might be best if I'm intending to > > use a multilib setup (since I'll be wanting to avoid breaking anything)? > > > > Aside from that, does anyone have any information/suggestions relating > > to the use of EM64T in the Gentoo environment or in general? > > > > Thanks. > Hi, > Lacking any experience with EM64T, but just checked and there's a profile for > ia64 (think it's the same). > Check (look at) "/usr/portage/profiles/default-linux/ia64" for a 'profile'.
I dont think ia64 is the right profile, as far as i know ia64 is for itanium and is incompatible with x86_64 architectures. The best bet would be to use x86 profile and define the CHOST and CFLAGS for EM64T. > PS:there's also a minimal-install-CD.2006.0 & stages for ia64. > HTH.Rumen It'd be a waste of time downloading ia64 cd because it wont run of EM64T or any other x86 systems anyway. This backward compatibility was the major reason why Intel's 64-bit plans failed, and AMD's 64-bit plans won. PS: I personally prefer AMD64 over EM64T, performance wise it's far better than its intel counterpart. -- gentoo-user@gentoo.org mailing list
