Re: [RFC] net: further seperate dst_entry.__refcnt from cachecontention

From: David Miller
Date: Fri Jul 20 2012 - 16:30:21 EST

From: Eric Dumazet <eric.dumazet@xxxxxxxxx>
Date: Fri, 20 Jul 2012 22:16:51 +0200

> Another idea concerning very hot dst would be to clone them on demand.

The FIB info cached dsts could also be made per-cpu.

And yes, the only reason I'm entertaining that idea now is the fact
that we'll have the number of dsts in the system under control.
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