On Feb 12, 2008 8:06 AM, Benjamen R. Meyer <[EMAIL PROTECTED]> wrote: > Wael Nasreddine wrote: > > On Mon, Feb 11, 2008 at 10:31:30PM -0500, "Benjamen R. Meyer" <[EMAIL > > PROTECTED]> wrote: > > > >> As you have an Intel Core Duo, you should have the EMT64E version - > >> Intel's version of the AMD64 instruction set - thus x86-64 compatible. > > > >> Best place to check is Intel's website - here's what I found: > > > >> http://processorfinder.intel.com/details.aspx?sspec=sl9dv > >> http://developer.intel.com/design/mobile/core/duodocumentation.htm > > > >> With EMT64E, you will be able to compile for 64-bit mode using the > >> x86-64 builds. (You can only use Intel64 if you have the Itanium procs > >> if memory serves.) > > > >> However, unless you specifically install the x86-64/AMD64/64-bit > >> version, you will have a 32-bit x86 environment and kernel. You can > >> upgrade if you like...see other threads for that info. > > > >> HTH, > > > >> Ben > > > > Let's say this processor supports 64 bits, what whould I gain from > > migrating to x86_64 I mean would it be faster??? I've never > > owned/worked on a 64bit machine before so excuse my lack of knowledge > > :) > > The primary advantage is larger memory space, and more native use of the > entire processor. I'm running it b/c I want to be - not b/c I need the > memory space, I'm not pushing 4GB for Physical RAM which is primarily > what it is about. > > From my understanding, you won't gain much if any in speed. The > processor is still the same clock rate. 64-bit programs may (not sure, > someone verify?) be bigger as the opcodes are larger. > > You can run any of the following configs: > 1) pure 32-bit > 2) pure 64-bit > 3) mixed 32-64 bit (multi-lib)
HI again, the T2250 is a Core Duo and not a Core 2 Duo. It only supports 32 bits instructions. http://download.intel.com/design/processor/manuals/253665.pdf page 55 regards, Boris. > > #3 will be the largest install as you have a lot of duplications since > you are hosting both a 32-bit and 64-bit environment. However, with #2 > you might not get a lot of programs since there are quite a few that > have not been fully ported to 64-bit modes. You're running #1 now. > > So not much is gained for now. > > Ben > > > >> Wael Nasreddine wrote: > >>> Hello, > > > >>> It's been like 6 months I'm using the arch i686, but today I saw on this > >>> page[1] something that confused me, saying that I have an x86_64 arch I > >>> have a > >>> Toshiba A135-S4427 with Intel dual core 1.73Ghz here's the output of > >>> /proc/cpuinfo > > > >>> ---- CUT > >>> processor : 0 > >>> vendor_id : GenuineIntel > >>> cpu family : 6 > >>> model : 14 > >>> model name : Genuine Intel(R) CPU T2250 @ 1.73GHz > >>> stepping : 8 > >>> cpu MHz : 800.000 > >>> cache size : 2048 KB > >>> physical id : 0 > >>> siblings : 2 > >>> core id : 0 > >>> cpu cores : 2 > >>> fdiv_bug : no > >>> hlt_bug : no > >>> f00f_bug : no > >>> coma_bug : no > >>> fpu : yes > >>> fpu_exception : yes > >>> cpuid level : 10 > >>> wp : yes > >>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > >>> mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc > >>> arch_perfmon bts pni monitor est tm2 xtpr > >>> bogomips : 3460.63 > >>> clflush size : 64 > > > >>> processor : 1 > >>> vendor_id : GenuineIntel > >>> cpu family : 6 > >>> model : 14 > >>> model name : Genuine Intel(R) CPU T2250 @ 1.73GHz > >>> stepping : 8 > >>> cpu MHz : 800.000 > >>> cache size : 2048 KB > >>> physical id : 0 > >>> siblings : 2 > >>> core id : 1 > >>> cpu cores : 2 > >>> fdiv_bug : no > >>> hlt_bug : no > >>> f00f_bug : no > >>> coma_bug : no > >>> fpu : yes > >>> fpu_exception : yes > >>> cpuid level : 10 > >>> wp : yes > >>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > >>> mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc > >>> arch_perfmon bts pni monitor est tm2 xtpr > >>> bogomips : 3457.55 > >>> clflush size : 64 > >>> ---- CUT > > > >>> So which arch do I really have?? > > > >>> [1]: > >>> http://docs.fedoraproject.org/install-guide/f8/en_US/sn-which-arch.html > > > > > -- > > gentoo-user@lists.gentoo.org mailing list > > -- $ ruby -e'puts " .:@BFegiklnorst".unpack("x4ax7aaX6ax5aX15ax4aax6aaX7ax2 \ aX5aX8axaX3ax8aX4ax6aX3aX6ax3ax3aX9ax4ax2aX9axaX6ax3aX2ax4 \ ax3aX4aXaX12ax10aaX7a").join' -- gentoo-user@lists.gentoo.org mailing list
