On Thu, 5 Jan 2006, Linus Torvalds wrote: > > The cache effects are likely the biggest ones, and no, I don't know how > much denser it will be in the cache. Especially with a 64-byte one.. > (although 128 bytes is fairly common too). Oh, but validatign things like "likely()" and "unlikely()" branch hints might be a noticeably bigger issue. In user space, placement on the macro level is probably a bigger deal, but in the kernel we probably care mostly about just single cachelines and about branch prediction/placement. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] 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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