Re: [RFC PATCH] netfilter: remove the duplicate tables

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On Fri, Nov 19, 2010 at 7:29 PM, Eric Dumazet <eric.dumazet@xxxxxxxxx> wrote:
>
> IMHO, the real problem is not the table duplication. We know that adding
> a level of indirection is going to hurt a lot because of cache misses.
>

Currently, multi-core CPU is common, the cores in a CPU share the
lowest level cache. Duplicate tables use more RAM, and may cause more
pressure of the lowest level cache.

-- 
Regards,
Changli Gao(xiaosuo@xxxxxxxxx)
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