From owner-freebsd-amd64@FreeBSD.ORG Sat Jan 22 21:19:57 2005 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9B05116A4CE for ; Sat, 22 Jan 2005 21:19:57 +0000 (GMT) Received: from mail.uk.psi.com (mail.uk.psi.com [154.8.2.142]) by mx1.FreeBSD.org (Postfix) with ESMTP id 531D443D1D for ; Sat, 22 Jan 2005 21:19:57 +0000 (GMT) (envelope-from alan.barrow@psinet.telstra.co.uk) Received: from ip10.vpn.uk.psi.com ([154.8.4.10] helo=macros) by mail.uk.psi.com with smtp (Exim 4.41) id 1CsSfh-0000DX-Vp; Sat, 22 Jan 2005 21:19:55 +0000 From: To: "Jeff Behl" , Date: Sat, 22 Jan 2005 21:13:49 -0000 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 In-Reply-To: <41F19B8D.4010005@fastclick.com> Importance: Normal Subject: RE: bsd i386 on amd64 X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: alan.barrow@psinet.telstra.co.uk List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Jan 2005 21:19:57 -0000 Compare 248 against dual 2.8 xeon 2 gig of ram each the dual opteron running the jdk on i386 and tomcat is at least twice as fast on compile time for a start. The amd's are animals, you WILL have trouble abusing the system. yours a.r.b. -----Original Message----- From: owner-freebsd-amd64@freebsd.org [mailto:owner-freebsd-amd64@freebsd.org]On Behalf Of Jeff Behl Sent: 22 January 2005 00:17 To: freebsd-amd64@FreeBSD.org Subject: Re: bsd i386 on amd64 David O'Brien wrote: >On Fri, Jan 21, 2005 at 04:06:16PM -0800, Jeff Behl wrote: > > >>i have a dual proc 3gHz AMD Opteron box >> >> > >Impossible. :-) The fastest Opteron right now is 2.5 GHz. > > > yep, you got got me. they're 2gHz. >>that i want to run java on, so >>it looks like i have to use the i386 build (any news on the jdk coming >>to AMD?). >> >> > >You probably want to use the Linux 'i386' JDK. > > > so Linux JDK is stable and has decent performance, and won't cause me any headache in terms of compatibility with things like Tomcat? i guess byte code is byte, or so they say... >>from what i've gathered, this should not be a problem and >>performance should be at least par compared to to running on a Xeon. is >>this true? i even seem to remember hearing rumor that the Opteron could >>even run i386 code faster, mHz to mHz, than a Xeon? >> >> > >An Opteron runs all code faster MHz to MHz compared to Xeon. Opteron >has a shorter pipeline and thus can do more work per cycle. Xeon has a >very deep pipeline and thus can be clocked higher and must be clocked >higher to get the same performance. > > > great news, thanks much! jeff _______________________________________________ freebsd-amd64@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 To unsubscribe, send any mail to "freebsd-amd64-unsubscribe@freebsd.org"