[plug] Hardware: RAM questions

[Mike]

At 11:16 AM 15/10/2001 +0800, you wrote:
>	3) No. You can never have enough physical RAM. However, be careful
>with the swap settings, you can cause linux to swap unnecessarily if you
>dont get it right (having too much swap seems to be the worst). Twice the
>physical RAM seems to be a good yardstick, although with 2gig you might want
>to reconsider and read up on this before choosing a swap partition size.

<cough>

That depends on your cache module !

You can slow down a system *significantly* if the cache controller
cannot handle addresses outside its range - the address tags need
to be stored in high speed ram - too many address bits means it
can't be stored - hence a sizable amount of memory may not be
cached at all....

rgds

mike