From owner-freebsd-current@FreeBSD.ORG Mon Jun 4 15:30:13 2007 Return-Path: X-Original-To: current@freebsd.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3B0B116A400 for ; Mon, 4 Jun 2007 15:30:13 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from mxout3.cac.washington.edu (mxout3.cac.washington.edu [140.142.32.166]) by mx1.freebsd.org (Postfix) with ESMTP id 17DE413C44B for ; Mon, 4 Jun 2007 15:30:13 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from smtp.washington.edu (smtp.washington.edu [140.142.32.141] (may be forged)) by mxout3.cac.washington.edu (8.13.7+UW06.06/8.13.7+UW07.05) with ESMTP id l54FUC8U019759 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 4 Jun 2007 08:30:12 -0700 X-Auth-Received: from [192.168.10.45] (c-67-166-149-71.hsd1.ca.comcast.net [67.166.149.71]) (authenticated authid=youshi10) by smtp.washington.edu (8.13.7+UW06.06/8.13.7+UW07.03) with ESMTP id l54FUBU3006095 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 4 Jun 2007 08:30:12 -0700 Message-ID: <46643003.3070308@u.washington.edu> Date: Mon, 04 Jun 2007 08:30:11 -0700 From: Garrett Cooper User-Agent: Thunderbird 2.0.0.0 (Windows/20070326) MIME-Version: 1.0 To: Joao Barros References: <20070604091628.51e9632a@kan.dnsalias.net> <70e8236f0706040705h6d459373n8fa83b32aeaca117@mail.gmail.com> <46642F2A.8000501@u.washington.edu> In-Reply-To: <46642F2A.8000501@u.washington.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-PMX-Version: 5.3.1.294258, Antispam-Engine: 2.5.1.298604, Antispam-Data: 2007.6.4.81533 X-Uwash-Spam: Gauge=IIIIIII, Probability=7%, Report='__CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __HAS_MSGID 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0, __USER_AGENT 0' Cc: current@freebsd.org Subject: Re: Kudos to everyone who worked on the gcc-4.2 merge X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Jun 2007 15:30:13 -0000 Garrett Cooper wrote: > Joao Barros wrote: >> On 6/4/07, Alexander Kabaev wrote: >>> On Sun, 3 Jun 2007 17:30:15 -0700 (PDT) >>> youshi10@u.washington.edu wrote: >>> >>> > I just wanted to thank everyone who helped make the gcc 4.2 merge >>> > possible -- I can see a noticeable performance increase (1.5x ~ 2.0x >>> > load time decrease) in my server (P4 HTT with SMP). >>> > >>> > This will be one of the great changes that will put FreeBSD back on >>> > the map closer to many Linux distros. >>> > >>> > Once gcc 4.2.1 gets in the tree, things will be much better, I'm >>> > sure :). >>> > >>> > Thank you very much, and let me know if you need testing with gcc >>> > 4.2.1 when it rolls around ;). >>> > >>> > -Garrett >>> > >>> Thanks, but I think kudos are addressed to wrong people. I very much >>> doubt that GCC can be responsible for any, let alone dramatic, >>> performance differences. Most likely you see effects of hard work done >>> by SMP scalability guys. >>> >>> -- >>> Alexander Kabaev >>> >>> >> >> I emailed Garrett but forgot to cc current@ >> >> My question was: "Can you specify the workload that you verify that >> much improvement?" >> Like you I had my doubts gcc was responsible for such an improvement. >> >> > The differences I saw (ok, limited), were a decrease in bootup time > (about 15-30 seconds faster), login via ssh (almost instantaneous when > the sshd thread seemingly hasn't gone to sleep), restarting the samba > daemon (3 seconds to ~1 second), and running make buildworld and > installworld. > > The only thing that I've noticed so far is that acpi is broken > again... I was shocked when I hit my power button and my machine > instantly shut off 0_0... > > Synced to HEAD yesterday and rebuilt. > > ASUS P4800DX motherboard with a P4 3.0GHz Northwood chip. > > -Garrett 3 other things I forgot to mention: 1. I don't use WITNESS on my server. 2. I use the 4BSD scheduler, not the ULE scheduler. 3. The last time I synced and built everything was around early May if I remember correctly. -Garrett