From owner-freebsd-hackers@FreeBSD.ORG Wed Aug 6 11:53:29 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E6E42EB0 for ; Wed, 6 Aug 2014 11:53:29 +0000 (UTC) Received: from systemdatarecorder.org (mail.systemdatarecorder.org [54.246.96.61]) (using TLSv1.1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client CN "localhost", Issuer "localhost" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 6A8282D43 for ; Wed, 6 Aug 2014 11:53:28 +0000 (UTC) Received: from nereid (188-127-209-196.cust.suomicom.net [188.127.209.196]) (authenticated bits=0) by systemdatarecorder.org (8.14.4/8.14.4/Debian-2ubuntu2.1) with ESMTP id s76Bp1wk007890 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 6 Aug 2014 11:51:02 GMT Date: Wed, 6 Aug 2014 14:53:14 +0300 From: Stefan Parvu To: freebsd-hackers@freebsd.org Subject: memory utilization questions Message-Id: <20140806145314.643dcc34a360f8284083930e@systemdatarecorder.org> Organization: systemdatarecorder.org X-Mailer: Sylpheed 3.4.2 (GTK+ 2.24.22; amd64-portbld-freebsd11.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Aug 2014 11:53:30 -0000 Im planning to calculate real used, free memory. Can anyone confirm if these are correct: 1. real used memory usedmem = totalmem - freemem, totalmem = vm.stats.vm.v_page_count x page_size freemem = vm.stats.vm.v_free_count x page_size 2. real free memory realfree = inactive + cache + free ? inactive = vm.stats.vm.v_inactive_count x page_size cache = vm.stats.vm.v_cache_count x page_size free = vm.stats.vm.v_free_count x page_size Thanks, -- Stefan Parvu