From owner-freebsd-net@FreeBSD.ORG Thu Apr 19 21:37:20 2012 Return-Path: Delivered-To: net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 43031106564A; Thu, 19 Apr 2012 21:37:20 +0000 (UTC) (envelope-from kmacybsd@gmail.com) Received: from mail-iy0-f182.google.com (mail-iy0-f182.google.com [209.85.210.182]) by mx1.freebsd.org (Postfix) with ESMTP id DA6F48FC20; Thu, 19 Apr 2012 21:37:19 +0000 (UTC) Received: by iahk25 with SMTP id k25so16244808iah.13 for ; Thu, 19 Apr 2012 14:37:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=VdqKexkI9NTQNRAqwjznatyBt1CkDTEafj5KZbqQggc=; b=uwHtiBV8WS0aMae4jbpF9mBLAAUwdNkpmkOJWjlvR5lV2kyf3uuj7UJUJ8I9ltH7Dq A8qt1/wcrh/h1Fk2ZG9RMXnUFqgJUapFIeeLwKY01uxcBaCJ5Vw5f0k3YBkptajEBbpx OpHeCisjpkbR2K8XEOXTt0VhmHSxMKDzNCIUYFGfCKe+PHxHzbC3DJMNooOmHgWWkMH2 cRTqTt6Uu2JQS8hY2/PftDpIk3JPfwgrCJpMzYEIM1RYBEPTZJmdTQv+Z740X5KjrMPa 3B2u57SSKQOL2mpjwj96Fi27HT+IT87gMzhjC93z9BnIYJaOGwWu5xh02eQIUZ9reMch Q52A== MIME-Version: 1.0 Received: by 10.50.194.232 with SMTP id hz8mr3966958igc.38.1334871439533; Thu, 19 Apr 2012 14:37:19 -0700 (PDT) Sender: kmacybsd@gmail.com Received: by 10.50.129.39 with HTTP; Thu, 19 Apr 2012 14:37:19 -0700 (PDT) In-Reply-To: <4F908327.5070905@freebsd.org> References: <20120419133018.GA91364@onelab2.iet.unipi.it> <4F907011.9080602@freebsd.org> <20120419204622.GA94904@onelab2.iet.unipi.it> <4F907FB4.3080400@freebsd.org> <4F908327.5070905@freebsd.org> Date: Thu, 19 Apr 2012 23:37:19 +0200 X-Google-Sender-Auth: SYeilf-tPrYXA-B61Uy17lxh7Eg Message-ID: From: "K. Macy" To: Andre Oppermann Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Cc: Luigi Rizzo , current@freebsd.org, net@freebsd.org Subject: Re: Some performance measurements on the FreeBSD network stack X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Apr 2012 21:37:20 -0000 On Thu, Apr 19, 2012 at 11:27 PM, Andre Oppermann wrote= : > On 19.04.2012 23:17, K. Macy wrote: >>>> >>>> This only helps if your flows aren't hitting the same rtentry. >>>> Otherwise you still convoy on the lock for the rtentry itself to >>>> increment and decrement the rtentry's reference count. >>> >>> >>> >>> The rtentry lock isn't obtained anymore. =A0While the rmlock read >>> lock is held on the rtable the relevant information like ifp and >>> such is copied out. =A0No later referencing possible. =A0In the end >>> any referencing of an rtentry would be forbidden and the rtentry >>> lock can be removed. =A0The second step can be optional though. >> >> >> Can you point me to a tree where you've made these changes? > > > It's not in a public tree. =A0I just did a 'svn up' and the recent > pf and rtsocket changes created some conflicts. =A0Have to solve > them before posting. =A0Timeframe (early) next week. > > Ok. Keep us posted. Thanks, Kip --=20 =A0 =A0=93The real damage is done by those millions who want to 'get by.' The ordinary men who just want to be left in peace. Those who don=92t want their little lives disturbed by anything bigger than themselves. Those with no sides and no causes. Those who won=92t take measure of their own strength, for fear of antagonizing their own weakness. Those who don=92t like to make waves=97or enemies. =A0 =A0Those for whom freedom, honour, truth, and principles are only literature. Those who live small, love small, die small. It=92s the reductionist approach to life: if you keep it small, you=92ll keep it under control. If you don=92t make any noise, the bogeyman won=92t find you. =A0 =A0But it=92s all an illusion, because they die too, those people who roll up their spirits into tiny little balls so as to be safe. Safe?! >From what? Life is always on the edge of death; narrow streets lead to the same place as wide avenues, and a little candle burns itself out just like a flaming torch does. =A0 =A0I choose my own way to burn.=94 =A0 =A0Sophie Scholl