netdev - [PATCH] br2684 testing needed for packet loss and performance

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Date:	Fri, 28 Aug 2009 12:38:33 +0200
From:	Karl Hiramoto <karl@...amoto.org>
To:	linux-atm-general@...ts.sourceforge.net
Cc:	netdev@...r.kernel.org
Subject: [PATCH] br2684 testing needed for packet loss and performance

Hi,

Anyone care to test or comment on  these patches?  I've attached 
versions for 2.6.28 and 2.6.30.

Note I've done all my tests without any QOS settings.  I start my link 
by something like "br2684ctl -c 0 -e 0 -p 1 -b -a 8.32"

Without these patches, if you open one or many file transfers, then also 
do a ping you will notice heavy packet loss.  This packet loss is being 
caused by the call to dev_kfree_skb(skb);

With these patches my max throughput drops 20% to  40% or so on a 24 
Mbps ADSL2+  line, but no longer have packet loss.   On a 15Mbps (and 
slower) line,  I no longer see packet loss with these patches.

Thanks
--
Karl

View attachment "linux-2.6.28.br2684.patch" of type "text/plain" (2781 bytes)

View attachment "linux-2.6.30.br2684.patch" of type "text/plain" (2448 bytes)