Kevin J. Cummings wrote:
Zhukov Pavel wrote:
On Dec 3, 2007 5:50 PM, Jeremy Nix <Jeremy.Nix@xxxxxxxxxx> wrote:
I was reading the Fedora 8 documentation and came across section 3.2
that recommends that the x86_64 architecture to be used for the Centrino
Core Duo processors.
Core Duo it's a x86 processor. it doesn't support x86_64.
Core 2 Duo it's a x86_64 and support 64bit technology.
My lappie has a Centrino Duo sticker on it, and was very happy running
the F8 X86_64 live DVD, so I would assume that your blanket statement
above needs some tweaking. Some Core Duo CPUs *are* 64-bit capable.
(then again, /proc/cpuinfo lists my CPU as an: Intel(R) Core(TM)2 CPU
so please be careful about how CPUs are referred to, and maybe my
laptop manufacturer was lax about the sticker they put on it.)
The correct way to ensure that your CPU is 64 bit capable is to look at
for the LM bit being set in /proc/cpuinfo for your processor(s).
In prior versions, I have been running the i686
architecture, so I am curious as to what the benefits would be in
switching to a 64 bit architecture when my processor is a 32bit
dual-core. Can somebody explain this to me, as the documentation does
not really outline the benefits or reasons to switch to the 64 bit
architecture.
Thanks in advance.
if you don't know what is it - you probably don't need it.
http://en.wikipedia.org/wiki/X86-64 -- this can help you.
Centrino Duo is an Intel branding for systems with certain sets of components,
including a Core 2 Duo processor, which is 64-bit. All Core Duo *processors*
are 32-bit only. If it boots a 64-bit kernel, it's not 32-bit, but the 64-bit
processors *will* boot the 32-bit kernel.
If you can use 64-bit, it's generally better to do so, though you may encounter
some problems with 3rd-party kernel modules, and you may want to use 32-bit
firefox or nspluginwrapper for binary plugin compatibility.
-- Chris
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