From owner-freebsd-hackers Tue Apr 14 22:47:31 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id WAA27775 for freebsd-hackers-outgoing; Tue, 14 Apr 1998 22:47:31 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from klemm.gtn.com (klemm-isdn.gtn.com [194.77.2.34]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA27751; Wed, 15 Apr 1998 05:47:19 GMT (envelope-from andreas@klemm.gtn.com) Received: (from andreas@localhost) by klemm.gtn.com (8.8.8/8.8.8) id HAA15412; Wed, 15 Apr 1998 07:46:24 +0200 (CEST) (envelope-from andreas) Message-ID: <19980415074624.16625@klemm.gtn.com> Date: Wed, 15 Apr 1998 07:46:24 +0200 From: Andreas Klemm To: dyson@FreeBSD.ORG, tarkhil@asteroid.svib.ru Cc: smp@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: SMP performance decrease? Reply-To: smp@FreeBSD.ORG References: <199804141149.PAA19398@asteroid.svib.ru> <199804142143.QAA04770@dyson.iquest.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.89.1i In-Reply-To: <199804142143.QAA04770@dyson.iquest.net>; from John S. Dyson on Tue, Apr 14, 1998 at 04:43:21PM -0500 X-Disclaimer: A free society is one where it is safe to be unpopular X-Operating-System: FreeBSD 3.0-CURRENT SMP Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, Apr 14, 1998 at 04:43:21PM -0500, John S. Dyson wrote: > [SNIP] > Bottom line: you are running a low level benchmark, and low level > benchmarks don't meassure loaded system performances very well. :-(. Very very true. Look at my signature, although your low level benchmark tells you a performance decrease in certain areas, SMP speeds up your system in "real world applications(tm)" up to factor 1.9 ! See the figures and try it out yourself. Reply-To set to freebsd-smp, to avoid crossposts. -- Andreas Klemm http://www.FreeBSD.ORG/~andreas What gives you 90% more speed, for example in kernel compilation ? http://www.FreeBSD.ORG/~fsmp/SMP/akgraph-a/graph1.html powered by ,,symmetric multiprocessor FreeBSD'' To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message