From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Ian McDonald" Subject: Re: latest -stable breaks Squid Date: Thu, 4 May 2006 13:59:04 +1200 Message-ID: References: <4459574D.6000303@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT Cc: "Herbert Xu" , "Dave Jones" , netdev@vger.kernel.org, stable@vger.kernel.org, fedora-list@list.zikzak.de, fedoralist@kotoulas.de Return-path: Received: from wr-out-0506.google.com ([64.233.184.230]:25581 "EHLO wr-out-0506.google.com") by vger.kernel.org with ESMTP id S1750856AbWEDB7F convert rfc822-to-8bit (ORCPT ); Wed, 3 May 2006 21:59:05 -0400 Received: by wr-out-0506.google.com with SMTP id i12so274676wra for ; Wed, 03 May 2006 18:59:05 -0700 (PDT) To: "Ben Greear" In-Reply-To: <4459574D.6000303@candelatech.com> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 5/4/06, Ben Greear wrote: > Herbert Xu wrote: > > Dave Jones wrote: > > > >>So I pushed out an update for Fedora Core 5 users yesterday > >>that moved the kernel from 2.6.16.9 to 2.6.16.13. > >>I've since heard "My network performance is awful", and worse > >>yet, some apps seem broken as in the report below. > >> > >>Anyone have any ideas ? > > > > > > Try reverting the e1000 truesize patch. Although the fix is 100% > > correct, it might have a negative impact on user-space apps with > > particuarly small rcvbuf settings. Prior to the fix, due to the > > incorrect accounting we are essentially enlarging rcvbuf by as much > > as 10 times. > > At least one of the reports shows problems with non e1000 NICs, so it's > probably not just the e1000 change. > > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=190620 > > Ben > Wouldn't it be more likely commit 5d0b6f2bdaf7e016e750cd24164a241512d968a3 as this touches net/ipv4/tcp_output.c and is also in same general area? -- Ian McDonald Web: http://wand.net.nz/~iam4 Blog: http://imcdnzl.blogspot.com WAND Network Research Group Department of Computer Science University of Waikato New Zealand