From owner-freebsd-questions@FreeBSD.ORG Mon May 12 21:30:06 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4DF831065673 for ; Mon, 12 May 2008 21:30:06 +0000 (UTC) (envelope-from dave.list@pixelhammer.com) Received: from smtp1.tls.net (smtp1.tls.net [65.196.224.82]) by mx1.freebsd.org (Postfix) with ESMTP id 0F0D28FC16 for ; Mon, 12 May 2008 21:30:05 +0000 (UTC) (envelope-from dave.list@pixelhammer.com) Received: (qmail 41582 invoked from network); 12 May 2008 21:30:04 -0000 Received: by simscan 1.2.3 ppid: 41565, pid: 41578, t: 0.1573s scanners: attach: 1.2.3 clamav: 0.91.1/m:45/d:6125 spam: 3.2.1 X-Spam-Checker-Version: SpamAssassin 3.2.1 (2007-05-02) on smtp1.tls.net X-Spam-Level: X-Spam-Status: No, score=0.2 required=20.0 tests=ALL_TRUSTED,TVD_RCVD_IP autolearn=disabled version=3.2.1 Received: from 64-184-10-3.bb.hrtc.net (HELO ?192.168.1.46?) (ldg%tls.net@64.184.10.3) by auth-smtp1.tls.net with ESMTPA; 12 May 2008 21:30:04 -0000 Message-ID: <4828B658.7060805@pixelhammer.com> Date: Mon, 12 May 2008 17:27:52 -0400 From: DAve User-Agent: Thunderbird 2.0.0.12 (Windows/20080213) MIME-Version: 1.0 To: 'User Questions' References: <482473B7.7070707@pixelhammer.com> <4824CD74.2020004@pixelhammer.com> In-Reply-To: <4824CD74.2020004@pixelhammer.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: FBSD 6.2 Xeon 2.4ghz CPU and high load X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 May 2008 21:30:06 -0000 DAve wrote: > Chuck Swiger wrote: >> It might be reasonable to try hyperthreading enabled, as your type of >> load might be improved by it on.... >> > > Funny that, enabling hyperthreading immediately dropped my load by half, > I see CPU0, CPU1, CPU2, CPU3 now in top. I also see my CPU load > reporting correctly as well. I see ranges from 10% idle to 80% idle, not > locked at 50% and above. > > That seems to have cured several ills. I will know more Monday at 8:30am > when the business email traffic kicks in. > > DAve Just a quick note, we survived the day in good form. The servers have dropped their load numbers by 50% under a heavy load and by 80% under a normal load. More importantly, Nagios shows that SMTP is always responding and the load balancers are now showing a max of 34 active connections on each server where before they were showing 350+. Connections are opening and closing far far quicker. machdep.hyperthreading_allowed=1 has been added to /etc/sysctl.conf On a related note, I met Chuck back in 1999 in Seattle at a SeaFug meeting. I doubt he remembers me but he and John Polstra coached me through changing from a Mac Admin to a BSD admin. I've read Chuck's posts on multiple maillists that we both have, or do, share subscriptions to. Chuck, you are always helpful, never mean, and you encourage detective work to identify a problem rather than recite the "upgrade" mantra. Your knowledge has helped countless people over the years, including me. I appreciate that. If you have a wish list, I can't find it. I would sure like to buy you a CD or something since I can't buy you a beer. Thank you for your time, thanks to everyone on the list for their time. DAve -- In 50 years, our descendants will look back on the early years of the internet, and much like we now look back on men with rockets on their back and feathers glued to their arms, marvel that we had the intelligence to wipe the drool from our chins.