Re: [PATCH] Move some variables into the "most_readonly" section??

[Christoph Lameter]

On Wed, 15 Jun 2005, Andi Kleen wrote:

> > Hmm. No. The bigger cpu maps may benefit from cacheline alignment for 
> > even for read access. 
> 
> Why? Can you please explain that. It doesn't make sense to me.

Its more likely to get a big piece of the array in a single 
cacheline if the array starts at the beginning of a cacheline.

If these maps would start in the middle of a cacheline then additional 
cacheline fetches may become necessary to scan an array etc.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/