Robert Collins <[email protected]> writes:
> On Fri, 2009-11-20 at 10:00 +0800, jam wrote:
>> On Friday 20 November 2009 05:57:09 [email protected] wrote:
>
>> > otherwise, 32bit is better.
>> Pray wax lyrical
>
> Memory footprint. For instance, bzr memory use under 32-bit builds of
> python is less than half that of the same workload on 64-bit builds.
This is true, and on most 64-bit platforms it makes a difference because their
32-bit ISA is reasonable.
On AMD64 and i386, this mostly comes out in the wash in terms of performance:
the gain of doubling the size of the register set outweighs the cost of extra
memory use in almost every case.
Also, memory is very, very cheap these days. :)
Daniel
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