From owner-freebsd-hackers@FreeBSD.ORG Sat Feb 28 04:24:08 2015 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C43F06A for ; Sat, 28 Feb 2015 04:24:08 +0000 (UTC) Received: from gold.funkthat.com (gate2.funkthat.com [208.87.223.18]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "gold.funkthat.com", Issuer "gold.funkthat.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 6CB80E56 for ; Sat, 28 Feb 2015 04:24:07 +0000 (UTC) Received: from gold.funkthat.com (localhost [127.0.0.1]) by gold.funkthat.com (8.14.5/8.14.5) with ESMTP id t1S4O5l2064841 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 27 Feb 2015 20:24:05 -0800 (PST) (envelope-from jmg@gold.funkthat.com) Received: (from jmg@localhost) by gold.funkthat.com (8.14.5/8.14.5/Submit) id t1S4O5AP064840; Fri, 27 Feb 2015 20:24:05 -0800 (PST) (envelope-from jmg) Date: Fri, 27 Feb 2015 20:24:05 -0800 From: John-Mark Gurney To: R0B_ROD Subject: Re: Connection Message-ID: <20150228042405.GV32329@funkthat.com> References: <20150228025936.GA1640@p4-bsd> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150228025936.GA1640@p4-bsd> X-Operating-System: FreeBSD 9.1-PRERELEASE amd64 X-PGP-Fingerprint: 54BA 873B 6515 3F10 9E88 9322 9CB1 8F74 6D3F A396 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? User-Agent: Mutt/1.5.21 (2010-09-15) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (gold.funkthat.com [127.0.0.1]); Fri, 27 Feb 2015 20:24:05 -0800 (PST) Cc: freebsd-hackers@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Feb 2015 04:24:08 -0000 R0B_ROD wrote this message on Fri, Feb 27, 2015 at 21:59 -0500: > Hello, > The optimization level -O3 > in "CFLAGS and COPTFLAGS -O3 -pipe -funroll-loops" > options in /etc/make.conf, have any relation to the > CPU having SSE3 and SSE4A features?? Not really.. the kernel doesn't allow the use of the fpu, unless you use interface provided in fpu_kern(9)... Also, the amd64 ABI doesn't mandate the presence of SSSE3 or SSE4A, so unless you do special work (which I plan on doing), even userland can't make use of them unless specially instructed (or you build your own binaries and don't mind them not always working on other computers).. > I have built over a dozen kernels for my laptop > with 10.1-STABLE. My last one was the smallest > and it was an accident, I just kept messing around. > The machine is truly responsive. Also adjusted ZFS > and other sysctl tunables. I am very happy with BSD. > I came from Linux with no real UNIX knowledge. > Hoping I can learn asm/C. Thanks for the time. Glad you are enjoying it... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."