From: Andrew Walrond <andrew@walrond.org>
To: linux-kernel@vger.kernel.org
Subject: Re: [RFC] VM: I have a dream...
Date: Wed, 1 Feb 2006 09:51:08 +0000
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On Wednesday 01 February 2006 04:06, Barry K. Nathan wrote:
>
> Also, the only way I see where "there is no more swapping" and
> "[y]ou're dealing with memory only" is if the disk *becomes* main
> memory, and main memory becomes an L3 (or L4) cache for the CPU [and
> as a consequence, main memory also becomes the main form of long-term
> storage]. Is that what you're proposing?
>

In the not-too-distant future, there is likely to be a ram/disk price 
inversion; ram becomes cheaper/mb than disk. At that point, we'll be buying 
hardware based on "how much disk can I afford to provide power-off backup of 
my ram?" rather than "how much ram can I afford?"

At that point, things will change.

Maybe, then, everything _will_ be in ram (with the kernel will intelligently 
write out pages to the disk in the background, incase of power failure and 
ready for a shutdown). Disk reads only ever occur during a power-on 
population of ram.

Blue skys....

Andrew Walrond
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