Messages in this thread | | | Date | Mon, 30 Jan 2006 01:22:59 -0800 (PST) | Subject | Re: Questions about alloc_large_system_hash() and TLB entries | From | "David S. Miller" <> |
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From: Eric Dumazet <dada1@cosmosbay.com> Date: Mon, 30 Jan 2006 10:03:40 +0100
> What would be the needed changes in the code to get both : > > - Allocate ram equally from all the nodes of the machine > > - Use large pages (2MB) to lower TLB stress
These two desires are mutually exclusive, I think.
If you want an 8MB hash table, for example, with 2MB mappings you could use memory from a maximum of 4 nodes since the 2MB chunks have to be physically 2MB aligned and 2MB contiguous. - 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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