From owner-freebsd-smp Fri Oct 4 13:31: 7 2002 Delivered-To: freebsd-smp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EF56937B401 for ; Fri, 4 Oct 2002 13:31:06 -0700 (PDT) Received: from ultimate.com (h525405f6161e.ne.client2.attbi.com [66.30.204.193]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0A6CF43E4A for ; Fri, 4 Oct 2002 13:31:06 -0700 (PDT) (envelope-from phil@ultimate.com) Received: (from phil@localhost) by ultimate.com (8.12.0.Beta7/8.12.0.Beta7) id g94KUxe2014909; Fri, 4 Oct 2002 16:30:59 -0400 (EDT) Date: Fri, 4 Oct 2002 16:30:59 -0400 (EDT) From: Phil Budne Message-Id: <200210042030.g94KUxe2014909@ultimate.com> To: freebsd-smp@freebsd.org Subject: -STABLE painfully slow on multi-processor Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org I just installed FreeBSD 4.5 on two VA linux boxes (Intel Lancewood motherboard). The hardware seems to be identical except that one appears to have only one 650MHz PIII CPU, and the other has two. The dual CPU box was DREADFULLY slow until I built a (4.7-RC) SMP kernel (on the single processor box), and now it's merely awful (a build and benchmark of my favorite software was 100x slower). The client would be happy to have Linux, but I'd be unhappy having to maintain it. This is the first SMP install I've done, some I'm hoping it's something obvious. Various output files (dmesg, mptable) for the two systems can be seen at http://www.ultimate.com/phil/smp/ direct reply appreciated; Thanks in advance. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message