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    SubjectRe: Problems with too much memory (?)
    On Tue, 22 Apr 1997, Alan Cox wrote:

    > > 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.
    >
    > Your 486 hardware caches only 16Mb of RAM. See if you can add more
    > tag ram. If not you may have to get a newer board.
    >
    > > So I suspect linux tfor having problems with too much memory.
    >
    > I suspect your mainboard
    >
    MB is propably the cause... but anyway why doesn't Linux support
    non-cached ram... too complex and/or not worth it? ('swapping' to
    non-cached ram should still be quite a bit faster than swapping to harddisk)

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