From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161094AbWJKQDV (ORCPT ); Wed, 11 Oct 2006 12:03:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161099AbWJKQDV (ORCPT ); Wed, 11 Oct 2006 12:03:21 -0400 Received: from moutng.kundenserver.de ([212.227.126.177]:47297 "EHLO moutng.kundenserver.de") by vger.kernel.org with ESMTP id S1161094AbWJKQDU convert rfc822-to-8bit (ORCPT ); Wed, 11 Oct 2006 12:03:20 -0400 From: Arnd Bergmann To: Linas Vepstas Subject: Re: [PATCH 0/21]: powerpc/cell spidernet bugfixes, etc. Date: Wed, 11 Oct 2006 18:02:42 +0200 User-Agent: KMail/1.9.4 Cc: akpm@osdl.org, jeff@garzik.org, James K Lewis , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org References: <20061010204946.GW4381@austin.ibm.com> In-Reply-To: <20061010204946.GW4381@austin.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200610111802.43996.arnd@arndb.de> X-Provags-ID: kundenserver.de abuse@kundenserver.de login:c48f057754fc1b1a557605ab9fa6da41 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 10 October 2006 22:49, Linas Vepstas wrote: > Andrew, please apply/forward upstream. > > The following set of 21 patches (!) are all aimed at the the > spidernet ethernet device driver. The spidernet is an etherenet > controller built into the Toshiba southbridge for the PowerPC Cell > processor. (This is the only device in existance that with this > ethernet hardware in it). > > These patches re-package/re-order/re-cleanup a previous > set of patches I've previously mailed. Thus, some have > been previously Acked-by lines, most do not. Most of > these patches are tiny, and handle problems that cropped > up during testing. Sorry about there being so many of them. > > The first set of 12 patches fix a large variety of mostly > minor bugs. > > The important patches are 13 through 17: these overcome a > debilitating performance problem on transmit (6 megabits > per second !!) on transmit of patches 500 bytes or larger. > After applying these, I am able to get the following: > > pkt sz   speed (100K buffs)       speed (4M buffs) > ------   -----------------        ---------------- > 1500     700 Mbits/sec            951 Mbits/sec > 1000     658 Mbits/sec            770 > 800      600                      648 > 500      500                      500 > 300      372                      372 > 60        70                       70 > > Above buf size refers to /proc/sys/net/core/wmem_default Excellent work! I guess this the best tx performance we've seen so far on this hardware. Consider this as an Acked-by: for all the patches, I'll save the effort of replying to each one of them separately. Jeff, do you plan on merging these fixes for 2.6.19? Arnd <><