Re: rwsem benchmark [was Re: [PATCH] rw_semaphores, optimisations try #3]

From: Andrea Arcangeli (
Date: Tue Apr 24 2001 - 05:46:21 EST

On Tue, Apr 24, 2001 at 11:33:13AM +0100, David Howells wrote:
> *grin* Fun ain't it... Try it on a dual athlon or P4 and the answer may come
> out differently.

compile with -mathlon and the compiler then should generate (%%eax) if that's
faster even if the sem is a constant, that's a compiler issue IMHO, I just give the
compiler the flexibility to do the right choice.

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This archive was generated by hypermail 2b29 : Mon Apr 30 2001 - 21:00:10 EST