From owner-freebsd-questions@FreeBSD.ORG Thu Nov 3 16:23:19 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 86DE6106564A for ; Thu, 3 Nov 2011 16:23:19 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id 160148FC1D for ; Thu, 3 Nov 2011 16:23:18 +0000 (UTC) Received: by faar19 with SMTP id r19so2555842faa.13 for ; Thu, 03 Nov 2011 09:23:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=xy56R8/fsMJE4hWdiLKcQ4xREPA1JrxRDCjXY315q30=; b=Bw8X0UU0NDCtoFPSJxd8TsvM8dgZ+tJnCi3cDQ4QgWunS3cH+wlELVdIh5HD5buNQI c7CnjyhTix+y2PUOYqboI9/OQtta+TfVe1Dh/aiJmnTRJDPDRCDeoFaYiKcyOAh5P8zu jsQOcUj8uIoxN/6xiT3DXfpDzoQwQe3YOtfy0= MIME-Version: 1.0 Received: by 10.223.88.150 with SMTP id a22mr13741523fam.1.1320337269835; Thu, 03 Nov 2011 09:21:09 -0700 (PDT) Received: by 10.223.88.72 with HTTP; Thu, 3 Nov 2011 09:21:09 -0700 (PDT) In-Reply-To: References: <201111031535.pA3FZnE0018328@mail.r-bonomi.com> Date: Thu, 3 Nov 2011 11:21:09 -0500 Message-ID: From: Adam Vande More To: Jon Schipp Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: Re: Check Memory Usage, program like 'free' in Linux X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Nov 2011 16:23:19 -0000 On Thu, Nov 3, 2011 at 11:12 AM, Jon Schipp wrote: > I'm under the impression that virtual memory and physical memory usage are > very different. > > e.g. vmstat and top report very different memory values. > If I assume this is an XY problem, and your true goal is find out what memory pressure a system is under then my answer would be to track the percent of swap used. Free memory is a useful utility on Windows XP, not so much on FreeBSD. So to answer your question in another way, there is a reason "free" doesn't exist on FreeBSD. It's not very meaningful. -- Adam Vande More