From owner-freebsd-questions Tue Apr 23 18:42: 6 2002 Delivered-To: freebsd-questions@freebsd.org Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by hub.freebsd.org (Postfix) with ESMTP id F141937B42A for <questions@FreeBSD.ORG>; Tue, 23 Apr 2002 18:41:53 -0700 (PDT) Received: from dan.emsphone.com (smmsp@localhost [127.0.0.1]) by dan.emsphone.com (8.12.2/8.12.2) with ESMTP id g3O1fq9H016060; Tue, 23 Apr 2002 20:41:53 -0500 (CDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.12.2/8.12.2/Submit) id g3O1fpO8016059; Tue, 23 Apr 2002 20:41:51 -0500 (CDT) Date: Tue, 23 Apr 2002 20:41:51 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Erin Fortenberry <efortenb@sdccd.cc.ca.us> Cc: questions@FreeBSD.ORG Subject: Re: Calculating memory in FreeBSD. Message-ID: <20020424014151.GZ44176@dan.emsphone.com> References: <BBDEEDD2EB67D311A0240008C74B93453A9108@ntxmidcity.sdccd.cc.ca.us> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <BBDEEDD2EB67D311A0240008C74B93453A9108@ntxmidcity.sdccd.cc.ca.us> User-Agent: Mutt/1.3.28i X-OS: FreeBSD 5.0-CURRENT X-message-flag: Outlook Error Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: <freebsd-questions.FreeBSD.ORG> List-Archive: <http://docs.freebsd.org/mail/> (Web Archive) List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions) List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-questions> List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-questions> X-Loop: FreeBSD.ORG In the last episode (Apr 23), Erin Fortenberry said: > > I am trying to calculate total memory in FreeBSD. I know of the five basic > memory states, but I always seem to be missing between 3MB and 15MB. hw.physmem is the closest you can get to total physical memory. > Right now on a machine with 768MB of RAM I am showing 752.71MB using > (vm.stats.vm.v_page_count + vm.stats.vm.v_page_size). > > Can someone tell me what I am missing? Might this have something to do with > vm.stats.vm.v_cache_count? The kernel itself might not be counted here, and possibly other memory used before the vm system starts up. -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message