Re: [PATCH RFC] [X86] performance improvement for memcpy_64.S by fast string.

From: Andi Kleen
Date: Fri Nov 06 2009 - 11:51:38 EST writes:

> Intel Nehalem improves the performance of REP strings significantly
> over previous microarchitectures in several ways:

The problem is that it's not necessarily a win on older CPUs to
do it this way.


ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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