From owner-freebsd-current@FreeBSD.ORG Wed Jul 17 16:18:15 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 4804A53E for ; Wed, 17 Jul 2013 16:18:15 +0000 (UTC) (envelope-from lidl@pix.net) Received: from hydra.pix.net (hydra.pix.net [IPv6:2001:470:e254::3c]) by mx1.freebsd.org (Postfix) with ESMTP id 1FF62B5D for ; Wed, 17 Jul 2013 16:18:15 +0000 (UTC) Received: from torb.pix.net (torb.pix.net [IPv6:2001:470:e254:10:12dd:b1ff:febf:eca9]) (authenticated bits=0) by hydra.pix.net (8.14.5/8.14.5) with ESMTP id r6HGIEd1073834; Wed, 17 Jul 2013 12:18:14 -0400 (EDT) (envelope-from lidl@pix.net) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.97.8 at mail.pix.net Message-ID: <51E6C3C6.8040209@pix.net> Date: Wed, 17 Jul 2013 12:18:14 -0400 From: Kurt Lidl User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: Freddie Cash Subject: Re: expanding past 1 TB on amd64 References: <51E63E59.6040709@bluerosetech.com> <51E6A776.7050101@pix.net> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: FreeBSD-Current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 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: Wed, 17 Jul 2013 16:18:15 -0000 On 7/17/13 11:26 AM, Freddie Cash wrote: > On Wed, Jul 17, 2013 at 7:50 AM, Bob Bishop > wrote: > > Hi, > > On 17 Jul 2013, at 15:17, Kurt Lidl wrote: > > >> On 7/16/2013 2:12 PM, Alan Cox wrote: > >>> ... The Haswell line of CPUs is widely reported to > >>>> support DIMMs twice as large, and it's due in September. That > would > >>>> make the systems of late 2013 hold up to 1536GB of memory. > >> > >> I'd point you at stuff like the Supermicro X8BQ6 series of > mainboards. > >> QP E5-8800 systems with 1 TB of memory have been around since 2011. > > > > That might have been true, but I did check SuperMicro's > > "motherboard matrix" of available products before posting. > > > > The largest listed memory configuration on > > any of their current products is 768GB. > > > > > http://www.supermicro.com/products/motherboard/matrix/?cpuclass=all&sorton=memory > > > > -Kurt > > http://www.supermicro.com/products/motherboard/Xeon7000 > > Looks like their matrix is not up-to-date. > > > There's also several AMD motherboards that support 1 TB of RAM: > http://www.supermicro.com/products/nfo/AMD_G34.cfm?pg=MOBO > > You know, the CPUs that started the 64-bit x86 support ... :) Searching a bit harder, it looks like Intel is shipping a quad-socket board that supports "1500GB" of memory. http://ark.intel.com/products/61033 So, 1500GB is now, and the next doubling will probably be "soon", assuming Intel revs their quad processor boards for Haswell, and that support for 64GB DIMMs is there. I'm not trying to find the biggest motherboard out there, I'm just trying to say that Chris' patch for support up to 16TB isn't too farfetched. And within the next "5 year" window, it's entirely likely that > 4TB systems will be available. -Kurt