From owner-freebsd-performance@FreeBSD.ORG Sat Feb 17 16:35:31 2007 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id EF6AA16A402 for ; Sat, 17 Feb 2007 16:35:31 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from redbull.bpaserver.net (redbullneu.bpaserver.net [213.198.78.217]) by mx1.freebsd.org (Postfix) with ESMTP id A52C013C491 for ; Sat, 17 Feb 2007 16:35:31 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from outgoing.leidinger.net (p54A5ED90.dip.t-dialin.net [84.165.237.144]) by redbull.bpaserver.net (Postfix) with ESMTP id 4F6A92E27F; Sat, 17 Feb 2007 17:08:03 +0100 (CET) Received: from webmail.leidinger.net (webmail.Leidinger.net [192.168.1.102]) by outgoing.leidinger.net (Postfix) with ESMTP id 626735B482A; Sat, 17 Feb 2007 17:08:00 +0100 (CET) Received: (from www@localhost) by webmail.leidinger.net (8.13.8/8.13.8/Submit) id l1HG806l034859; Sat, 17 Feb 2007 17:08:00 +0100 (CET) (envelope-from Alexander@Leidinger.net) Received: from proxy.Leidinger.net (proxy.Leidinger.net [192.168.1.103]) by webmail.leidinger.net (Horde MIME library) with HTTP; Sat, 17 Feb 2007 17:08:00 +0100 Message-ID: <20070217170800.l0au44ygowkw0s0w@webmail.leidinger.net> X-Priority: 3 (Normal) Date: Sat, 17 Feb 2007 17:08:00 +0100 From: Alexander Leidinger To: "Steven H. Baeighkley" References: <45D640FE.3070805@frii.com> In-Reply-To: <45D640FE.3070805@frii.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable User-Agent: Internet Messaging Program (IMP) H3 (4.1.3) / FreeBSD-7.0 X-BPAnet-MailScanner-Information: Please contact the ISP for more information X-BPAnet-MailScanner: Found to be clean X-BPAnet-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-14.864, required 6, autolearn=not spam, BAYES_00 -15.00, DK_POLICY_SIGNSOME 0.00, FORGED_RCVD_HELO 0.14) X-BPAnet-MailScanner-From: alexander@leidinger.net X-Spam-Status: No Cc: freebsd-performance@freebsd.org Subject: Re: bizarre performance issues in 6.2 release X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Feb 2007 16:35:32 -0000 Quoting "Steven H. Baeighkley" (from Fri, 16 Feb =20 2007 16:40:46 -0700): > These servers are running apache, perl, proftpd and php. One server is > running 4.11 and is rocking the world, load is rarely above 1 and is > regularly below .5. The other server is running 6.2 and regularly has > load between 2 and 6 despite serving fewer connections than the 4.11 > box. Using the load of unequal operating system versions as a measure for =20 performance is not a good idea. In fact, the algorithm to count the =20 load did change between 4.x and 5.x (the numbers are larger now, but =20 the box should be able to do the same amount of work). A more =20 appropriate value to measure the performance is to benchmark the =20 number of handled connections to a service in a specific timeframe, or =20 the min/max/avg response time of a request. I suggest to have a look =20 at "ab", "jmeter" or similar tools to measure the performance of a web =20 server. When those numbers are different by an significant amount, feel free =20 to come back and ask for suggestions (but first google around please, =20 accf_http and libthr may make a difference and are well documented). Bye, Alexander. --=20 Always leave room to add an explanation if it doesn't work out. http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID =3D B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID =3D 72077137