Re: > 64 MB of RAM

Kevin M Bealer (
Tue, 7 May 1996 22:47:02 -0400 (EDT)

On Sat, 4 May 1996, Kevin Buettner wrote:

> Memory prices seem to be falling and I am contemplating buying more
> memory.
> In Documentation/, it says the following:
> : Limit memory to low 16MB
> : You also need at least 512kB
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> : of RAM cache if you have more than 64MB of RAM. Some other things
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> : to try when experiencing seemingly random, "weird" problems: 1)
> Is the line about needing a 512kB cache true?
> In theory, my motherboard can hold up to 128MB of memory, yet I am
> fairly certain that I am limited to a 256kB cache. (I have a Plato
> motherboard.)
> Kevin

I have a motherboard which has 8MB with an 8KB internal CPU cache, with a
486(DX)33... right now I have 16.59 Bogomips, and I have another 8MB SIMM
ordered... How much of a speed hit from undercaching should I expect? What
is a good "main_memory/cache" ratio?

So you think you know the real meaning of fear?
Yeah, you think you do know, but I doubt it.
When you sit in a shelter with bombs falling all over.
And the houses around you are burning like torches.
I agree that you experience horror and fright
For such moments are dreadful, for as long as they last,
But the all-clear sounds--then it's okay-- | -- Ilya Selvinskiy
You take a deep breath, the stress has passed by. | (Taken from "The Sum
But real fear is a stone deep down in your chest. | of All Fears" by
You hear me? A stone. That's what it is, no more. | Tom Clancy pg. 182.)