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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Dave Taht <dave.taht@gmail.com>
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Date: Sun, 29 May 2011 19:17:29 +0200
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Cc: Gabor Juhos <juhosg@openwrt.org>, bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] tiny monsters: multicast packets
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Le dimanche 29 mai 2011 à 11:02 -0600, Dave Taht a écrit :

>         
> 
> The ethernet driver is the ag71xx driver as present in the wndr3700v2
> (and mucho related atheros hardware).  Regrettably so far as I can
> tell, this one is out of tree, and is incorporated in the openwrt
> build via a string of patches. 
> 
> https://dev.openwrt.org/browser/trunk/target/linux/ar71xx/files/drivers/net/ag71xx

I'll take a look, thanks.

> Gabor sent patches for it to me for ethtool that I have not yet tried.
> 
> The kernel being used in capetown[1] is 2.6.37.6. - patched forward
> from 2.6.39 for the pfifo ecn bug, the ipv6 ecn bug, and several other
> bufferbloat related things like sfb...
> 

Hmm, maybe you could try "perf top" if available to make sure cpu time
is used in this driver, not in another layer ?