From owner-freebsd-current@freebsd.org Mon Sep 19 21:55:38 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id EB710BE0487 for ; Mon, 19 Sep 2016 21:55:38 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from vps1.elischer.org (vps1.elischer.org [204.109.63.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "vps1.elischer.org", Issuer "CA Cert Signing Authority" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id AAF4D1DAE for ; Mon, 19 Sep 2016 21:55:38 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from julian-mbp3.pixel8networks.com (50-196-156-133-static.hfc.comcastbusiness.net [50.196.156.133]) (authenticated bits=0) by vps1.elischer.org (8.15.2/8.15.2) with ESMTPSA id u8JLdaOv068816 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Mon, 19 Sep 2016 14:39:37 -0700 (PDT) (envelope-from julian@freebsd.org) To: freebsd-current From: Julian Elischer Subject: Maximum memory for various freebsd releases Message-ID: <41ff69b6-7ad3-6f95-8995-aeb0416c658e@freebsd.org> Date: Mon, 19 Sep 2016 14:39:30 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 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: Mon, 19 Sep 2016 21:55:39 -0000 Looking through the various release notes I see that one thing thing that is rarely mentioned is the amount of physical memory supported, or any tuning that may be required to run more than some amoutn (should it be necessary to change some table sizes etc.). If anyone has that information I'm looking to know if it is possible to run 768GM of ram on an 8.0 machine and a 10.0 machine, and if not in the default configuration, whether there are any changes to the configuration that would allow this. Julian