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    SubjectRe: [ON TOPIC] HELP: Getting lousy memory throughput from Abit KD7
    On Tue, 22 Jul 2003 15:34:51 EDT, "Richard B. Johnson" said:

    > If I needed to really find the memory access time, I would write
    > a program to test it.

    > (4) Warm the cache first by reading everything in the buffer you
    > are going to test.

    At which point you're measuring the cache speed not the memory speed.

    > You will probably be amazed at how well your system performs. This
    > dual CPU 400 MHz thing, with 100 MHz memory does 1,900++ MiB/sec.

    Which probably explains this result. Do a quick sanity check - this number
    seems to indicate 20 bytes per memory clock, EVERY clock - either there's
    some VERY creative use of prefetching to make sure that you never hit a
    cache line miss, or you're measuring the cache.. ;)
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