Re: [CFT] faster athlon/duron memory copy implementation

From: Hirokazu Takahashi (taka@valinux.co.jp)
Date: Thu Oct 24 2002 - 18:09:44 EST


Hello,

> 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.

Your test dosen't use cache memory on CPU for the both of src and dst.
We should also try it with a smaller buffer.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Thu Oct 31 2002 - 22:00:25 EST