From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Herbert Subject: Re: [PATCH net-next-2.6] rps: consistent rxhash Date: Wed, 21 Apr 2010 12:12:41 -0700 Message-ID: References: <1271769404.7895.10.camel@edumazet-laptop> <4BCDB425.9050007@lastsummer.de> <1271775421.7895.19.camel@edumazet-laptop> <20100420.144106.118596093.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: eric.dumazet@gmail.com, franco@lastsummer.de, xiaosuo@gmail.com, netdev@vger.kernel.org To: David Miller Return-path: Received: from smtp-out.google.com ([74.125.121.35]:54285 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754188Ab0DUTMq (ORCPT ); Wed, 21 Apr 2010 15:12:46 -0400 Received: from hpaq7.eem.corp.google.com (hpaq7.eem.corp.google.com [10.3.21.7]) by smtp-out.google.com with ESMTP id o3LJCidi012844 for ; Wed, 21 Apr 2010 21:12:44 +0200 Received: from pwj2 (pwj2.prod.google.com [10.241.219.66]) by hpaq7.eem.corp.google.com with ESMTP id o3LJCg2B011452 for ; Wed, 21 Apr 2010 21:12:43 +0200 Received: by pwj2 with SMTP id 2so5098495pwj.3 for ; Wed, 21 Apr 2010 12:12:41 -0700 (PDT) In-Reply-To: <20100420.144106.118596093.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Apr 20, 2010 at 2:41 PM, David Miller wrote: > From: Eric Dumazet > Date: Tue, 20 Apr 2010 16:57:01 +0200 > >> I know many applications using TCP on loopback, they are real :) > > This is all true and I support your hashing patch and all of that. > > But if we really want TCP over loopback to go fast, there are much > better ways to do this. > > Eric, do you remember that "TCP friends" rough patch I sent you last > year that essentailly made TCP sockets over loopback behave like > AF_UNIX ones and just queue the SKBs directly to the destination > socket without doing any protocol work? > This is sounds very interesting! Could you post a patch? :-) > If we ever got that working, tbench performance would become > impressive :) >