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) #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 > -- [email protected] mailing list
