Mailinglist Archive: opensuse (686 mails)

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Re: [opensuse] 64 bit vs 32 bit RAM consumption
On 7/25/2013 4:41 AM, Anton Aylward wrote:
David Haller said the following on 07/24/2013 11:05 PM:
Or is
it just misunderstanding arising from 64 bit using twice as many CPU
registers to increase its own speed?
On the contrary. Having more registers makes the program possibly
running faster. Completely independent from memory usage.

This is completely dependent on the compiler and huge if-but-maybe situation.

Much as you seem to enjoy it, your trips down memory lane in response to every
post are not at all helpful or on-point.

Yes of course it depends on the compiler, but So What?
Compilers are optimized for architectures. Have been since the late Pleistocene.

First versions of the compiler for new architectures are sub-optimum, just
enough to make it work,
but because compilers are pretty much table driven these days, subsequent
releases are able
to wring out the best performance the particular chipset can deliver.



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