netdev - Re: [net-next PATCH V2 3/9] net: frag, move LRU list maintenance outside of rwlock

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Date:	Thu, 29 Nov 2012 10:33:13 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	brouer@...hat.com, fw@...len.de, netdev@...r.kernel.org,
	pablo@...filter.org, tgraf@...g.ch, amwang@...hat.com,
	kaber@...sh.net, paulmck@...ux.vnet.ibm.com,
	herbert@...dor.hengli.com.au
Subject: Re: [net-next PATCH V2 3/9] net: frag, move LRU list maintenance
 outside of rwlock

On Thu, 2012-11-29 at 13:31 -0500, David Miller wrote:

> I think a per-cpu hash might make more sense.
> 
> This would scale our limits to the size of the system.
> 
> I'm willing to be convinced otherwise, but it seems the most
> sensible thing to do.

It would break in many cases, when frags are spreaded on different cpus.



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