From owner-freebsd-hackers@FreeBSD.ORG Wed Feb 5 02:13:23 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 0ED8525E; Wed, 5 Feb 2014 02:13:23 +0000 (UTC) Received: from mail-qa0-x231.google.com (mail-qa0-x231.google.com [IPv6:2607:f8b0:400d:c00::231]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 891851B92; Wed, 5 Feb 2014 02:13:22 +0000 (UTC) Received: by mail-qa0-f49.google.com with SMTP id w8so13397597qac.8 for ; Tue, 04 Feb 2014 18:13:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=rJurTyrH5iWgn/A7pVYymAwUAQjBZVSbjxRBWHryOb4=; b=i+BORzbvL3NPAA3LgBNoggbQ4QEfwe3jsXa9Uk/NUunATcNtN4HrsDyDGoescSuv9l Wa/HBgzND+0+1Y/1YCIAbS38q6xEkg5nqqIL2d1RE5O10F4zE4Z9+1dteBv4jH/JdWsp WOCUBIIG3BkNS0kF64/Z871M6tMRdqrb05IdceX/VFhxzpZ7Elk4F7BCtkzP8YlRTYTZ HuVORIZ6xcmOFY8qV2cVjC9/qVIUsAVA/jsCI+9y5tHiUnS5UDJzuj8H3Lg4iWZNLqz8 0nJ//4HryDCFuFtJnqCh7uV4XmR/E1PlyI24v99LP/3ALA5cVgZB2CcLNYWFujez0lfo RDDg== MIME-Version: 1.0 X-Received: by 10.140.96.180 with SMTP id k49mr66591974qge.4.1391566401822; Tue, 04 Feb 2014 18:13:21 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.224.52.8 with HTTP; Tue, 4 Feb 2014 18:13:21 -0800 (PST) In-Reply-To: <60985.1391554164@critter.freebsd.dk> References: <1391538649.19169.79261269.3C5F49D1@webmail.messagingengine.com> <493DEB39-C4B4-409E-B8B2-B1B11E013754@netgate.com> <20140204223528.GF23872@ithaqua.etoilebsd.net> <52F16BA4.4060202@pathscale.com> <60985.1391554164@critter.freebsd.dk> Date: Tue, 4 Feb 2014 18:13:21 -0800 X-Google-Sender-Auth: KGyMjg7stEU4A3CDl8DgyQ_B0_w Message-ID: Subject: Re: opteron a1100 arm From: Adrian Chadd To: Poul-Henning Kamp Content-Type: text/plain; charset=ISO-8859-1 Cc: Thomas Zander , "freebsd-hackers@freebsd.org" , =?ISO-8859-1?B?Qy4gQmVyZ3N0cvZt?= , Baptiste Daroussin , Jim Thompson 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 02:13:23 -0000 On 4 February 2014 14:49, Poul-Henning Kamp wrote: > In message <52F16BA4.4060202@pathscale.com>, =?UTF-8?B?IkMuIEJlcmdzdHLDtm0i?= w > rites: > >> Think about how much power interconnects takes, PCIe and everything else.. > > Not to mention the raw savings of avoiding all the crap that has > been nailed inexpertly onto the X86 platform over the years... > > Did you notice that "X86 arduino" Intel just launched ? > > Does anybody but me cringe at the thought of an Arduino with UEFI, ACPI, > microcode updates and SMM ticking away in the background to make sure > it doesn't run too hot ? > > If ARM and AMD are smart, an ARM64 machine will have the OS loaded > and handed over to in a matter of seconds rather than minutes, and > that alone would make a lot of people love them. My experience with ARM and power management is that as the chips get more recent, the voodoo hiding behind black boxes increases. Qualcomm wouldn't even contemplate open sourcing the power management stuff. I have more faith that the intel stuff will at least be sanely usable by us OS hackers over what the multiplude of ARM vendors have given us. It looks like a mess and I've only vaguely peripherally looked at it. -a