netdev - Re: [PATCHv4] net: Add batman-adv meshing protocol

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Message-Id: <72E610F4-6157-47CA-B409-92CE151843A8@nicira.com>
Date:	Wed, 8 Sep 2010 16:13:51 -0700
From:	Justin Pettit <jpettit@...ira.com>
To:	Sven Eckelmann <sven.eckelmann@....de>
Cc:	Jesse Gross <jesse@...ira.com>, b.a.t.m.a.n@...ts.open-mesh.org,
	Andi Kleen <andi@...stfloor.org>, davem@...emloft.net,
	netdev@...r.kernel.org, b.a.t.m.a.n@...ts.open-mesh.net
Subject: Re: [PATCHv4] net: Add batman-adv meshing protocol

On Sep 8, 2010, at 1:25 PM, Sven Eckelmann wrote:

> Without checking any facts: This sounds a little bit heavy - does it only 
> sound heavy and in reality is extreme slim? The problem is that it must run on 
> those low end, "please don't run code on me, because I cannot crunch numbers 
> and have no ram" machines like the FON2100 or WRT54GL.

We used to run early versions of Open vSwitch on the WRTSL54GS (which is only a bit beefier than the WRT54GL) and didn't have any problems.  My guess is that it would run even better now, since the code has gone through a number of optimizations.  If packets are hitting the kernel cache, it's really only header parsing and a hash lookup, which is pretty cheap.

--Justin

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