Re: [PATCH] 2.3.40: <linux/linkage.h> generates incorrect cache alignments

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Thu Jan 27 2000 - 16:58:36 EST

> +#if defined(CONFIG_X86) && !defined(CONFIG_M386)
> +#define __ALIGN .align L1_CACHE_BYTES,0x90
> +#if L1_CACHE_BYTES == 32
> +#define __ALIGN_STR ".align 32,0x90"
> +#else
> +#define __ALIGN_STR ".align 16,0x90"
> +#endif
> +#else

Please dont do this without doing a complete set of benchmarks on a variety
of machines. On the K7 at least the cache footprint seems to outweigh the
alignment values in general.

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