Mailinglist Archive: opensuse (4634 mails)

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[opensuse] 64 bits vs 32 bits [Was: unable to access website after 10.2 install [CLUE!]]
  • From: "Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>
  • Date: Wed, 20 Dec 2006 02:25:44 +0100 (CET)
  • Message-id: <Pine.LNX.4.64.0612200221430.7063@xxxxxxxxxxxxxxxx>
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The Tuesday 2006-12-19 at 16:38 -0800, Randall R Schulz wrote:

...

> It's not about the processor, OK? It's about how much demand 64-bit
> everything places on the memory subsystem. Why fetch and store so many
> 64-bit quantities that don't make any use of the upper 32 bits? It's
> all a big waste of memory bandwidth.

Even with a 64 bit system, you can define 32 bits integers, or 16, or 8,
and just load the needed bits, not 64 every time. It's only if you tell
the compiler to use 64 bit alignement when that might be true.

AFAIK, of course :-)

- --
Cheers,
Carlos E. R.
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