This One Time, at Band Camp, Boris Fersing <kernelsensei@gentoo.org> said, On Tue, Feb 12, 2008 at 03:06:13PM -0500:
> On Feb 12, 2008 8:06 AM, Benjamen R. Meyer <bm_witness@yahoo.com> wrote:
> > Wael Nasreddine wrote:
> > > On Mon, Feb 11, 2008 at 10:31:30PM -0500, "Benjamen R. Meyer" <bm_witness@yahoo.com> 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.
Well here you go, thanks for clearing this up.
> > #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
--
Wael Nasreddine
http://wael.nasreddine.com
PGP: 1024D/C8DD18A2 06F6 1622 4BC8 4CEB D724 DE12 5565 3945 C8DD 18A2
.: An infinite number of monkeys typing into GNU emacs,
would never make a good program. (L. Torvalds 1995) :.
Which arch do I have ?
