[Pardon me if I've botched any information. Comments follow.] On Sun, 2006-12-17 at 23:04 +0300, Andrew Gaydenko wrote: > Hi! > > What is Gentoo architecture for this CPU? - > > Pentium4 630 (3.00ГГц, 2МБ, 800МГц, EM64T) Socket775, Prescott-2M core.
If you want to use EM64T, it's amd64 and -march=nocona in the CFLAGS. Do a little research about the available amd64 profiles. Some allow for a pure 64bit system and some allow for both 64bit and 32bit binaries to be used (I think it's called multilib). I tried using EM64T with my 531 but ran into an issue with the X server crashing out and causing a system reboot on exit. I didn't really have the patience or the need for EM64T functionality (it was just for fun at the time) so I went back to a 32bit setup using x86 and -march=prescott > > I have not found here (http://gentoo-wiki.com/Safe_Cflags) this CPU core. > For Prescott it is 'x86'. For some CPUs with EM64T it is 'amd64'. Where > is a truth? :-) So far, it's amd64 for EM64T. x86 is 32bit. Prescott is 32bit. > > If the answer is 'amd64' - there are two additional question: > > - does it mean all modern Intell CPUs has 'amd64' architecture? They all > have EM64T. amd64 is used simply because it has everything needed to make EM64T work. amd64 is more or less a 64bit x86-compatible architecture and is adequate for a stable EM64T system as long as you use -march=nocona in the CFLAGS or else you won't end up really using EM64T. Nocona is 64bit and if you want 64bit you just call your prescott a nocona and voila - for the most part. > > - [OT] which CPU core is better? Pentium4/Prescott-2M or Pentium D 9xx? Say, > L2 cache is 2MB and 2MB*2 respectively. Pentium D is better. 2 CPU cores. > Thanks in advance! > Andrew -- Statux <[EMAIL PROTECTED]>
signature.asc
Description: This is a digitally signed message part
