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 4.60) (envelope-from ) id 1GSF2p-0004z8-M6 for garchives@archives.gentoo.org; Tue, 26 Sep 2006 15:40:28 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.8/8.13.6) with SMTP id k8QFc4Aw006472; Tue, 26 Sep 2006 15:38:04 GMT Received: from wx-out-0506.google.com (wx-out-0506.google.com [66.249.82.232]) by robin.gentoo.org (8.13.8/8.13.6) with ESMTP id k8QFU1pe029875 for ; Tue, 26 Sep 2006 15:30:02 GMT Received: by wx-out-0506.google.com with SMTP id r21so2715294wxc for ; Tue, 26 Sep 2006 08:30:01 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=l9bG255Fld38qpRtgufk1JYBqwle9lAoEyoDYRt2+aWB3cCtdn3ZJmp5H4iGmAJjPukVl2ir5qCDekhafje4gfoJgd6TkxpZHB5myrzUISPf44rNa8A9StVzcrDYVZXPbXtTgiH+F2DRq9kMXvJkW6z6ncEV1fCiEaXSOAG3XL0= Received: by 10.90.54.20 with SMTP id c20mr355543aga; Tue, 26 Sep 2006 08:30:00 -0700 (PDT) Received: by 10.90.27.12 with HTTP; Tue, 26 Sep 2006 08:30:00 -0700 (PDT) Message-ID: <49bf44f10609260830r1ac69953j97533ecb2fc02c8a@mail.gmail.com> Date: Tue, 26 Sep 2006 08:30:00 -0700 From: Grant To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] 64-bit system? In-Reply-To: <200609190746.06644.Gentoo@kraszewscy.net> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <49bf44f10609180718w301ebaacx89d175031e6774a7@mail.gmail.com> <7573e9640609180849g1f1cb882le265a37fbc4981@mail.gmail.com> <200609190746.06644.Gentoo@kraszewscy.net> X-Archives-Salt: 4ff70464-6f33-4445-80e9-481c15725820 X-Archives-Hash: 4301b65169b1b484c1b9e16c1a2e53a2 > > You'll only notice a speed increase with applications that need to > > caculate very large numbers, like encryption keys and certain > > scientific apps. Everything else will basically run just as fast in > > 32-bit mode as it will in 64-bit. There are exceptions in certain > > media encoders that don't have hardware optimizations for 64-bit, that > > may actually run faster as 32-bit apps. > > Well, the registers are not only twice longer, but there is twice as much of > them as in 32-bit. And THIS is what optimising compilers are fond of. More > registers mean less in-memory temporary variables, which in turn means less > memory accesses. This gives speed improvement. For SMP systems it gives huge > difference - as the memory is shared between CPUs and they must fight for it. > > I have an amd64 system for over a year (or is it 2-yrs?). I had some glitches: > > * Need to use binary 32-bit firefox to have flash - still have problems with > some fonts not appearing in flash > * Need to use 32-bit java to make 32-bit OpenOffice happy > * Some forensic packages won't compile on 64-bit due to bad coding techniques > > But besides that - my AMD64 3000+ just rocks. I had definitely much more > problems with 64-bit XP, but since getting rid of it (XP not problems) I am > fully 64-bit positive :D That's what I just bought. A Sempron64 3000+. So, if there isn't an amd64 package available, I can always use x86? Does portage make it easy to do this? - Grant -- gentoo-user@gentoo.org mailing list