From owner-freebsd-hackers@FreeBSD.ORG Sun Sep 24 10:42:00 2006 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 341F416A403 for ; Sun, 24 Sep 2006 10:42:00 +0000 (UTC) (envelope-from soralx@cydem.org) Received: from pd2mo2so.prod.shaw.ca (shawidc-mo1.cg.shawcable.net [24.71.223.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id D016343D46 for ; Sun, 24 Sep 2006 10:41:59 +0000 (GMT) (envelope-from soralx@cydem.org) Received: from pd5mr7so.prod.shaw.ca (pd5mr7so-qfe3.prod.shaw.ca [10.0.141.183]) by l-daemon (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0J6300GP0F1Z5RD0@l-daemon> for freebsd-hackers@freebsd.org; Sun, 24 Sep 2006 04:41:59 -0600 (MDT) Received: from pn2ml7so.prod.shaw.ca ([10.0.121.151]) by pd5mr7so.prod.shaw.ca (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0J6300JZDF1ZYFB0@pd5mr7so.prod.shaw.ca> for freebsd-hackers@freebsd.org; Sun, 24 Sep 2006 04:41:59 -0600 (MDT) Received: from soralx.cydem.org ([24.87.27.3]) by l-daemon (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0J630038XF1Y8S50@l-daemon> for freebsd-hackers@freebsd.org; Sun, 24 Sep 2006 04:41:59 -0600 (MDT) Date: Sun, 24 Sep 2006 03:41:57 -0700 From: soralx@cydem.org In-reply-to: To: freebsd-hackers@freebsd.org Message-id: <200609240341.57424.soralx@cydem.org> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7bit Content-disposition: inline References: <200609141232.k8ECWTXj045191@lurza.secnetix.de> <20060919173421.GA45928@xor.obsecurity.org> User-Agent: KMail/1.9.1 Subject: Re: numbers don't lie ... X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 24 Sep 2006 10:42:00 -0000 > here are a bunch of new numbers: > make: dell 2950 > OS: Freebsd 6.2-PRERELEASE > cpu: XEON 3.20GHz dualcore * 2 > memory: 4GB > > no swap configured/used. > > make buildworld -j 8: > > src & obj real user system hyper > -------------------- --------- ---------- --------- ----- > Dell PERC 5/i RAID 0 24m17.73s 1h4m31.49s 15m47.44s no > Dell PERC 5/i RAID 0 22m3.39s 1h38m46.84s 28m54.18s yes > iSCSI/netapp 26m49.98s 1h4m26.77s 16m12.89s no > > src obj > -------------------- > md Dell PERC 5/i 24m7.22s 1h4m44.94s 16m24.45 no > > so, if numbers are to be believed: > 1- hypert helps in the real time, but user and system are bigger. > allot of sweat for a very small gain. > 2- src in memory made no change. could it be that the src three was already in the memory, cached? or did you do each test after a reboot? > 3- slow disc (iscsi) vs. very fast disk (PERC 5/i RAID 0) - about 1:3 speed, > produced > less than 10% gain in time. > > danny [SorAlx] ridin' VN1500-B2