Messages in this thread | | | Date | Thu, 9 Sep 2004 16:20:48 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] cacheline align pagevec structure |
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Marcelo Tosatti <marcelo.tosatti@cyclades.com> wrote: > > > I think the patch make sense, but I'm very sceptical about the benchmarks > > ;) > > Why's that? You think changing to the number of pages in the pagevec to "15" instead > "16" is the cause?
Nope. I wouldn't have expected to see a significant (or even measurable) change in performance as a result of this patch.
After all, these structures are always stack-allocated, and top-of-stack is most always in L1 cache.
I'd suspect that benchmark variability is the cause here. - 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/
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