Re: [Hampshire] 64 bit graphics drivers

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Author: Brad Rogers
Date:  
To: hampshire
Subject: Re: [Hampshire] 64 bit graphics drivers

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gpg: failed to create temporary file '/var/lib/lurker/.#lk0x570ee100.hantslug.org.uk.12914': Permission denied
gpg: keyblock resource '/var/lib/lurker/pubring.gpg': Permission denied
gpg: Signature made Sat Apr 5 16:41:26 2008 BST
gpg: using DSA key 497BD1F48AB6137F
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On Sat, 05 Apr 2008 16:20:27 +0100
Chris Liddell <cjl@???> wrote:

Hello Chris,

> You weren't far off, though.


Trouble is, sometimes, an inch is as good as a mile.

> The processor still only really has a 4Gb address space, but it does
> some clever page swapping to allow more physical memory to be


D'oh! Should've remembered about that from my Atari 8-bit days. My
memory, like DRAM, needs a refresh.

> I believe there is some (small) performance penalty compared to
> direct support of a 64 bit address space, but that's purely
> anecdotal.....


Understandable, as it takes time (however short a period) to swap chunks
of memory in and out. The larger the chunk, the more time. Obviously,
it's unlikely to be a period of time long enough such that we could
measure it with a stop watch.

-- 
 Regards  _
         / )           "The blindingly obvious is
        / _)rad        never immediately apparent"


When I say ugly, I don't mean rough looking, I mean hideous
Ugly - The Stranglers