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On 3/15/07, Nick Piggin <nickpiggin@yahoo.com.au> wrote: > There should be little contention on the memory in the global hash anyway, > because we can roughly reduce contention as a factor of hash-size/cacheline-size. > > What we will have are cache misses on the global table... but we're going to > get cache misses on those private tables as well. I'm thinking about NUMA cases. If you have private tables for a process which is pinned to some cluster in a NUMA machine the table is local to the node. If you have a global table you cannot optimize your application for such a situation because at least some of the pages of the global table are remote. - 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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