From owner-freebsd-stable@FreeBSD.ORG Sun Dec 5 00:14:35 2004 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9EFE316A4CE for ; Sun, 5 Dec 2004 00:14:35 +0000 (GMT) Received: from carver.gumbysoft.com (carver.gumbysoft.com [66.220.23.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 838AC43D60 for ; Sun, 5 Dec 2004 00:14:35 +0000 (GMT) (envelope-from dwhite@gumbysoft.com) Received: by carver.gumbysoft.com (Postfix, from userid 1000) id 7738E72DF8; Sat, 4 Dec 2004 16:14:35 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by carver.gumbysoft.com (Postfix) with ESMTP id 7275B72DF4; Sat, 4 Dec 2004 16:14:35 -0800 (PST) Date: Sat, 4 Dec 2004 16:14:35 -0800 (PST) From: Doug White To: Arjan Van Leeuwen In-Reply-To: Message-ID: <20041204161351.F434@carver.gumbysoft.com> References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-stable@freebsd.org Subject: Re: Timecounter problems on 5.3 - things take twice as long X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 05 Dec 2004 00:14:35 -0000 On Thu, 2 Dec 2004, Arjan Van Leeuwen wrote: > Hi, > > I have a weird problem on a dual Xeon 550MHz system running > 5.3-RELEASE. Everything takes twice as long as it should. > > Example: > winston% time sleep 2 > sleep 2 0.00s user 0.00s system 0% cpu 4.006 total > > The same for pings, the scsi delay when booting, etc. The time of the > system itself doesn't seem to be affected (but maybe ntpd takes care > of that). I tried changing the kern.timecounter.hardware sysctl from > ACPI-safe to TSC and i8254, but that didn't help. TSC isn't available on SMP systems. Its possible one of the CPUs is damaged, though. > Any other suggestions on how to fix this? Do I have to provide more > information? 'vmstat -i' output would be handy. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org