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    SubjectRe: [CFT] faster athlon/duron memory copy implementation
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    On Thu, 24 Oct 2002, Manfred Spraul wrote:

    > AMD recommends to perform memory copies with backward read operations
    > instead of prefetch.
    >
    > http://208.15.46.63/events/gdc2002.htm
    >
    > Attached is a test app that compares several memory copy implementations.
    > Could you run it and report the results to me, together with cpu,
    > chipset and memory type?
    >
    > Please run 2 or 3 times.

    Here you are, three runs, shown is: floor((n1+n2+n3)/3)
    where n_i is the results (cycles/page) of the i-th run of the respective test

    Duron 700, Via KT133, PC133 (manuf. date 12/2000): (machine was NOT idle)

    'warm up run' 11445
    '2.4 non MMX' 22374
    '2.4 MMX fallback' 20075
    '2.4 MMX version' 17611
    'faster_copy' 11103
    'even_faster' 7225
    'no_prefetch' 6549

    Athlon XP1600+, Via KT333, PC2100 (manuf. date 10/2002): (idle)

    'warm up run' 14106
    '2.4 non MMX' 15382
    '2.4 MMX fallback' 15416
    '2.4 MMX version' 14103
    'faster_copy' 8793
    'even_faster' 8797
    'no_prefetch' 6351

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