Messages in this thread | | | Date | Tue, 13 Dec 2005 14:35:00 -0800 | From | Paul Jackson <> | Subject | Re: [PATCH] Cpuset: rcu optimization of page alloc hook |
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Eric wrote: > But the initial pointer *should* be in a cache line shared by all cpus to get > best performance.
No - not if that pointer is seldom used. Then its location does not directly affect performance at all, and better for it to be used as "inert filler" to fill out cache lines of words that are write hot.
-- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson <pj@sgi.com> 1.925.600.0401 - 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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