Re: Problems with too much memory (?)

H. Peter Anvin (hpa@transmeta.com)
22 Apr 1997 23:31:30 GMT

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Previous message: Thomas Ackermann: "ncr810 scsi"
Maybe in reply to: Pavel Machek: "Problems with too much memory (?)"

Followup to: <Pine.LNX.3.94.970422224746.19767B-100000@atrey.karlin.mff.cuni.cz>
By author: Pavel Machek <pavel@atrey.karlin.mff.cuni.cz>
In newsgroup: linux.dev.kernel
>
> This still may be hw problem, but aybe it is not.
> My machine is 486DX2/80, 128kb level 2 cache (stolen from one 386 :-),
> 20MB ram (16M+4M). It compiles kernel about 32 minutes.
>
> When I removed 4MB SIMM, compilation time went down to 22 minutes. I
> thought that it is hardware problem, but I wanted to investigate it more.
> So I put memory back and limited memory to 16M (mem=16M). Compile time
> stayed at about 22 minutes.
>
> So I suspect linux tfor having problems with too much memory.
>

Odds are 100:1 that your motherboard only caches 16MB unless you add
either additional cache or tag RAM.

-hpa

-- 
Always looking for a few good BOsFH.  **  Linux - the OS of global cooperation
        I am Bahá'í -- ask me about it or see http://www.bahai.org/

Previous message: Thomas Ackermann: "ncr810 scsi"
Maybe in reply to: Pavel Machek: "Problems with too much memory (?)"