On Mon, 6 Mar 2006, richard offer wrote:
On 3/3/06, Federico Lucifredi <flucifredi@xxxxxxx> wrote:
Hello guys,
does anyone here know why in RHEL 4 64 AS I am seeing IA32e as a target
instead of the usual x86_64 ? is RedHat considering those synonymous, or
is there any difference between the two I should account for when
managing such packages ?
ia32e is the name Redhat gave to the Intel EM64T platform.
This is somewhat compatable with the x86_64 platform - so that in most
cases the x86_64 RPMs will run on an EM64T.
Noticable differences are the Linux kernel - where the memory
controller and NUMA support is different, and packages that use some
of the various Intel/AMD specific extensions ie, SSE3 vs. 3Dnow!.
Yup.. except in RHEL 4 the ia32e architecture is no more, EM64T now uses
x86_64 kernel as well. The ia32e only exists on RHEL 3 and it's derivates,
AFAIK.
- Panu -
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