From owner-freebsd-hackers@FreeBSD.ORG Thu Jul 5 07:00:35 2007 Return-Path: X-Original-To: hackers@freebsd.org Delivered-To: freebsd-hackers@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id D5E6416A400; Thu, 5 Jul 2007 07:00:35 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from mxout5.cac.washington.edu (mxout5.cac.washington.edu [140.142.32.135]) by mx1.freebsd.org (Postfix) with ESMTP id B524D13C459; Thu, 5 Jul 2007 07:00:35 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from smtp.washington.edu (smtp.washington.edu [140.142.33.9] (may be forged)) by mxout5.cac.washington.edu (8.13.7+UW06.06/8.13.7+UW07.06) with ESMTP id l6570ZHI016035 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 5 Jul 2007 00:00:35 -0700 X-Auth-Received: from [192.168.10.45] (c-24-10-12-194.hsd1.ca.comcast.net [24.10.12.194]) (authenticated authid=youshi10) by smtp.washington.edu (8.13.7+UW06.06/8.13.7+UW07.03) with ESMTP id l6570Ywh020732 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 5 Jul 2007 00:00:34 -0700 Message-ID: <468C9718.1050108@u.washington.edu> Date: Thu, 05 Jul 2007 00:00:40 -0700 From: Garrett Cooper User-Agent: Thunderbird 2.0.0.4 (Windows/20070604) MIME-Version: 1.0 To: ports@FreeBSD.org, hackers@freebsd.org References: <468C96C0.1040603@u.washington.edu> In-Reply-To: <468C96C0.1040603@u.washington.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-PMX-Version: 5.3.2.304607, Antispam-Engine: 2.5.1.298604, Antispam-Data: 2007.7.4.234532 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: Subject: Re: Finding slowdowns in pkg_install (continuations of previous threads) 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: Thu, 05 Jul 2007 07:00:35 -0000 Garrett Cooper wrote: > I'm currently running a gamut of tests (500 tests, per package -- > 128 total on my server), and outputting all data to CSV files to > interpret later, using another Perl script to interpret calculated > averages and standard deviations. > > Using basic printf(2)'s with clock_gettime(2) I have determined > that the majority of the issues are disk-bound (as Tom Kientzle put > it). The scope of my problem is not to analyze tar, but I've > discovered that a lot of time is spent in reading and interpreting the > +CONTENTS and related files (most notably in parsing commands to be > honest). > > Will post more conclusive results tomorrow once all of my results > are available. > > Cheers, > -Garrett Forgot to include hackers@. -Garrett