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    SubjectRe: HIGHMEM=4G slows down ps2pdf with 2.4.28
    On Thu, 2 Dec 2004 17:08:15 -0200
    Marcelo Tosatti <> wrote:

    > On Wed, Dec 01, 2004 at 11:25:22PM +0100, Alain Tesio wrote:
    > > Hi,
    > >
    > > With a 2.4.28 kernel, 1.5 Go RAM and nothing exotic, everything works fine
    > > with CONFIG_HIGHMEM4G and CONFIG_HIGHMEM=y except that
    > > ps2pdf is about 30 times slower

    > How does /proc/mtrr look like?
    > Maybe some of your memory is configured as uncacheable.

    reg00: base=0x00000000 ( 0MB), size=1024MB: write-back, count=1
    reg01: base=0x40000000 (1024MB), size= 256MB: write-back, count=1
    reg02: base=0x50000000 (1280MB), size= 128MB: write-back, count=1
    reg03: base=0x58000000 (1408MB), size= 64MB: write-back, count=1
    reg04: base=0x5c000000 (1472MB), size= 32MB: write-back, count=1
    reg05: base=0x5e000000 (1504MB), size= 16MB: write-back, count=1

    I don't think that the hosting company played with the bios settings,
    and I don't do anything special with memory.

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