From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Subject: Re: [PATCH] ibm_newemac: Increase number of default rx-/tx-buffers Date: Sat, 5 Jan 2008 13:38:17 +0100 Message-ID: <200801051338.17957.sr@denx.de> References: <1199526609-12290-1-git-send-email-sr@denx.de> <1199528388.7291.55.camel@pasglop> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linuxppc-dev@ozlabs.org To: benh@kernel.crashing.org Return-path: Received: from moutng.kundenserver.de ([212.227.126.183]:64739 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753969AbYAEMi1 (ORCPT ); Sat, 5 Jan 2008 07:38:27 -0500 In-Reply-To: <1199528388.7291.55.camel@pasglop> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: On Saturday 05 January 2008, Benjamin Herrenschmidt wrote: > On Sat, 2008-01-05 at 10:50 +0100, Stefan Roese wrote: > > Performance tests done by AMCC have shown that 256 buffer increase the > > performance of the Linux EMAC driver. So let's update the default > > values to match this setup. > > > > Signed-off-by: Stefan Roese > > --- > > Do we have the numbers ? Did they also measure latency ? I hoped this question would not come. ;) No, unfortunately I don't have any numbers. Just the recommendation from AMCC to always use 256 buffers. Best regards, Stefan