From owner-freebsd-hackers@FreeBSD.ORG Wed Feb 5 00:23:17 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 DC2F0F19 for ; Wed, 5 Feb 2014 00:23:17 +0000 (UTC) Received: from mail-oa0-f42.google.com (mail-oa0-f42.google.com [209.85.219.42]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 9B71D1DF3 for ; Wed, 5 Feb 2014 00:23:17 +0000 (UTC) Received: by mail-oa0-f42.google.com with SMTP id i7so10900929oag.1 for ; Tue, 04 Feb 2014 16:23:16 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:content-type:mime-version:subject:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to; bh=FA+sL9JpbyU/JNIv7Qfw5Ok84zO9dwNEtqCxDvck+Sk=; b=UJqEMZPxnDL2IPHbypzHQ5oBGae6o1ZLNrlpMWFuxPo/tRh+Si6CMu77nBLV5Jr2+g biWI3Fi7HJk/jT7U188FVWNbJjwIffs6B4VUL56usSZvlI75H8LutlsA7ZvCLS7xMu5S O3919G9cHZdj1Pi7WpVBLPlOQ+rjg+ePslsr72N6ClsVPtLT0wt9T30jLBr61gfe8saf 89/XHuVPGHJrWCMfgJv+HqZvPDYoEUD0DyBqkVAYf4Jn1vUi/bBtqh6qeMhlGnxhDxBz IQ04cIf7j6PPUKRYc8f7PTqMDDnPycvsILgAxVewmaQs2q8eeKUjLOZfRqBMb2LmXBNx 31dg== X-Gm-Message-State: ALoCoQlOMJbLuXVH7XOg9355w5BKCP0jEEwMl2tXv/ogKDKZNOSJMneNjgWVLJqF4gMqAqNjSfiL X-Received: by 10.60.16.230 with SMTP id j6mr10181066oed.47.1391559796632; Tue, 04 Feb 2014 16:23:16 -0800 (PST) Received: from [172.21.0.93] (67-198-60-238.static.grandenetworks.net. [67.198.60.238]) by mx.google.com with ESMTPSA id qh4sm45114432obc.4.2014.02.04.16.23.10 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 04 Feb 2014 16:23:10 -0800 (PST) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 7.1 \(1827\)) Subject: Re: opteron a1100 arm From: Jim Thompson In-Reply-To: <52F16BA4.4060202@pathscale.com> Date: Tue, 4 Feb 2014 18:23:08 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: <8537A333-176E-4DF4-A712-2ADFE1B75338@netgate.com> References: <1391538649.19169.79261269.3C5F49D1@webmail.messagingengine.com> <493DEB39-C4B4-409E-B8B2-B1B11E013754@netgate.com> <20140204223528.GF23872@ithaqua.etoilebsd.net> <52F16BA4.4060202@pathscale.com> To: =?windows-1252?Q?=22C=2E_Bergstr=F6m=22?= X-Mailer: Apple Mail (2.1827) Cc: Thomas Zander , freebsd-hackers@freebsd.org, Baptiste Daroussin X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Feb 2014 00:23:17 -0000 On Feb 4, 2014, at 4:37 PM, C. Bergstr=F6m = wrote: > I don't track the Atom family and not sure if C2000 is the new = out-of-order version, but until that is available - this is no = comparison by a long shot. Yes, the C2000 SoCs and Bay Trail are Silvermont architecture. = Silvermont has OOE and a better branch predictor than did Bonnell or = Saltwell. At 22nm, Intel had enough die area to just add in more cores rather than = rely on =93hyper threading" for better threaded performance so Hyper = Threading isn=92t part of this SoC. The ISA is roughly Westmere (think 2010 Core architecture). AES-NI, SSE4.1/4.2 = and extended page tables (so: bhyve) are all =91in there=92. > Also 5w on the cpu package could easily be made up for in a superior = motherboard and chassis design. Think about how much power interconnects = takes, PCIe and everything else.. That=92s why the infrastructure guys ( =95 Dell, HP, NEC, Ericsson, = Quanta, Supermicro, etc) are building micro server systems with 450 = =91nodes=92 per rack.=