Received: with ECARTIS (v1.0.0; list netdev); Tue, 01 Mar 2005 10:39:04 -0800 (PST)
Received: from xi.wantstofly.org (alephnull.demon.nl [212.238.201.82])
	by oss.sgi.com (8.13.0/8.13.0) with ESMTP id j21IcxJj023596
	for <netdev@oss.sgi.com>; Tue, 1 Mar 2005 10:39:00 -0800
Received: by xi.wantstofly.org (Postfix, from userid 500)
	id A49C02B0EC; Tue,  1 Mar 2005 19:38:58 +0100 (MET)
Date: Tue, 1 Mar 2005 19:38:58 +0100
From: Lennert Buytenhek <buytenh@wantstofly.org>
To: John Ronciak <john.ronciak@gmail.com>
Cc: netdev@oss.sgi.com, hadi@cyberus.ca, robert.olsson@data.slu.se
Subject: Re: e1000 problem with NAPI?
Message-ID: <20050301183858.GA15931@xi.wantstofly.org>
References: <20050301135931.GA14610@xi.wantstofly.org> <56a8daef05030110137b712879@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <56a8daef05030110137b712879@mail.gmail.com>
User-Agent: Mutt/1.4.1i
X-Virus-Scanned: ClamAV 0.83/737/Mon Feb 28 22:22:18 2005 on oss.sgi.com
X-Virus-Status: Clean
X-archive-position: 2192
X-ecartis-version: Ecartis v1.0.0
Sender: netdev-bounce@oss.sgi.com
Errors-to: netdev-bounce@oss.sgi.com
X-original-sender: buytenh@wantstofly.org
Precedence: bulk
X-list: netdev

On Tue, Mar 01, 2005 at 10:13:34AM -0800, John Ronciak wrote:

> Lennert,

Hello,


> It sounds like you are running into a bug we had with NAPI in that
> e1000 driver.  Robert actually found it.  :-)  Please try the 5.7.6
> driver available from Sourceforge.  It has the fixed NAPI code in it.

Works much better, thanks.

It seems as if performance is much improved as well.  With the old
version (5.5.4-k2-NAPI), it would successfully receive ~350k pkts out
of a 1Mpkt back-to-back tinygram burst and drop ~650k.  With 5.7.6,
it receives ~780k and drops ~220k.  (82546GB dual copper GigE, dual
Xeon 2.4 w/HT on an intel SE7505VB2.)


cheers,
Lennert