From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.62) (envelope-from ) id 1IBu9B-0003Ud-63 for garchives@archives.gentoo.org; Fri, 20 Jul 2007 15:12:01 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.14.0/8.14.0) with SMTP id l6KFA640001525; Fri, 20 Jul 2007 15:10:06 GMT Received: from mu-out-0910.google.com (mu-out-0910.google.com [209.85.134.186]) by robin.gentoo.org (8.14.0/8.14.0) with ESMTP id l6KFA58C001520 for ; Fri, 20 Jul 2007 15:10:06 GMT Received: by mu-out-0910.google.com with SMTP id i10so1376816mue for ; Fri, 20 Jul 2007 08:10:05 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:date:x-mailer:reply-to:x-priority:message-id:to:subject:in-reply-to:references:mime-version:content-type:content-transfer-encoding:from; b=DQtTCe2FIemqJlNjHvwhIhkCsp2y/nHn/utzkFo+SIJZsoF1ppBqjf8PD+8pkxPlgDEjXhgzMGj5vv2x4nOsiD9rsU9mMJE6bheaH14OuZKvyFRC8YijFaZOI0yVBIVRDPvtQGYrHj3SUUUajhn+lAEqSS4rDJ2tq50r87tZvUs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:date:x-mailer:reply-to:x-priority:message-id:to:subject:in-reply-to:references:mime-version:content-type:content-transfer-encoding:from; b=Vao+gL4V7lg9+mcEDwDqpchgjSaYtKTg0tJgFeAXirbxFDO29omJ5tpUYB7ySv7hkFW4+IRMbkqvn12BSlABgmcM8q/vNmpFnL+K+sS0lk0nXFa4QdxxZxhtYMukK0dqkkCOL0fKod2UQ2vUP5LlckzN7dcn0UdyH7TOrNmda+s= Received: by 10.82.178.11 with SMTP id a11mr634569buf.1184944205456; Fri, 20 Jul 2007 08:10:05 -0700 (PDT) Received: from kit_linux.sysprog.spb.ru ( [195.239.136.25]) by mx.google.com with ESMTPS id i8sm3258776nfh.2007.07.20.08.10.04 (version=SSLv3 cipher=OTHER); Fri, 20 Jul 2007 08:10:04 -0700 (PDT) Date: Fri, 20 Jul 2007 19:09:29 +0400 X-Mailer: The Bat! (v3.85.03) Professional X-Priority: 3 (Normal) Message-ID: <1277511570.20070720190929@gmail.com> To: "Dustin J. Mitchell" Subject: Re[2]: [gentoo-amd64] 32 or 64 for web server and mysql In-Reply-To: <20070720144310.GJ3830@v.igoro.us> References: <46A0B6C6.5000803@singnet.com.sg> <20070720144310.GJ3830@v.igoro.us> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-amd64@gentoo.org Reply-to: gentoo-amd64@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1251 Content-Transfer-Encoding: quoted-printable From: Leonid Eremin X-Archives-Salt: 14358ff7-e52e-4a4c-8233-c6aa92b1e1e6 X-Archives-Hash: 98681479da9c6cda55fd47a42033a509 On AMD64 there's also number of named general-purpose registers is increased from 8 to 16 - new capabilities for optimization :) > On Fri, Jul 20, 2007 at 09:21:10PM +0800, P.V.Anthony wrote: >> The reason for this questions is that there are some information on the >> net that says that there is no much difference between them. >> Is that true? Thought that 64bit is always better. > Building a system 64-bit buys you: > - wider integers (so math with 64-bit integers is faster) > - wider pointers (so an application can have a *lot* more address space > allocated to it) > - bigger binaries and data structures (so more RAM consumed) > - future-proofing (in a few years, 32-bit hardware will not be > available new) > There's no "better" and it's not inherently faster in any way. As > another poster said, most UNIX apps have been running 64-bit on other > architectures (SPARC being the most common) for years, so compatibility > isn't a big deal. > Those are the points on which I base my 32/64 decisions. > Dustin --=20 =D1 =F3=E2=E0=E6=E5=ED=E8=E5=EC, Leonid mailto:Leon.Programmer@gmail.com -- gentoo-amd64@gentoo.org mailing list