From owner-freebsd-current@FreeBSD.ORG Tue Feb 28 21:53:22 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F11D516A420; Tue, 28 Feb 2006 21:53:22 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (66-23-211-162.clients.speedfactory.net [66.23.211.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4D2CC43D97; Tue, 28 Feb 2006 21:52:58 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from localhost (john@localhost [127.0.0.1]) by server.baldwin.cx (8.13.4/8.13.4) with ESMTP id k1SLquSW019951; Tue, 28 Feb 2006 16:52:56 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: freebsd-current@freebsd.org Date: Tue, 28 Feb 2006 15:07:42 -0500 User-Agent: KMail/1.9.1 References: <1743.1140821039@critter.freebsd.dk> <45B20008-CAC0-41FC-9F35-CEFE59611265@freebsd.org> In-Reply-To: <45B20008-CAC0-41FC-9F35-CEFE59611265@freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200602281507.46491.jhb@freebsd.org> X-Virus-Scanned: ClamAV 0.87.1/1306/Tue Feb 28 04:50:04 2006 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-1.4 required=4.2 tests=ALL_TRUSTED autolearn=ham version=3.1.0 X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on server.baldwin.cx Cc: Mike Jakubik , Poul-Henning Kamp , Peter Fraser , Jason Evans , Mark Kirkwood Subject: Re: Virtual memory consumption (both user and kernel) in modern CURRENT 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: Tue, 28 Feb 2006 21:53:23 -0000 On Friday 24 February 2006 17:55, Jason Evans wrote: > On Feb 24, 2006, at 2:43 PM, Poul-Henning Kamp wrote: > > In message <06424916-2FC9-4A31-A109-654682BFC1C4@freebsd.org>, > > Jason Evans writes: > >> I did some quick experiments last night, where I booted a -current > >> system with phkmalloc, then with jemalloc. The total increase in > >> resident memory was negligible, on the order of kilobytes. > > > > Running which applications ? > > This was immediately after boot. I used ssh to log in, then ran top > to get a snapshot at ~60 seconds after boot. Things like getty, zsh, > sshd, and sendmail were running (total of 23 processes). Admittedly, > this is a rather lame experimental design, but it was simple to > perform, and I wanted to know if there were huge differences in > system memory usage, as a number of people have repeatedly implied. > This experiment convinced me that there are not any consistently > substantial differences in memory usage, though I fully expect there > to be variation, depending on the application(s) being run. People are reporting issues with big hogs like kde though. You might want to duplicate your tests with that instead of the much smaller sshd, sendmail, etc. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org