From owner-freebsd-stable@FreeBSD.ORG Tue Nov 29 16:43:55 2005 Return-Path: X-Original-To: stable@freebsd.org 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 C6C4916A426 for ; Tue, 29 Nov 2005 16:43:54 +0000 (GMT) (envelope-from nomadlogic@gmail.com) Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id B724943D53 for ; Tue, 29 Nov 2005 16:43:43 +0000 (GMT) (envelope-from nomadlogic@gmail.com) Received: by zproxy.gmail.com with SMTP id 8so1183608nzo for ; Tue, 29 Nov 2005 08:43:42 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=LfHa3Y9toLG5h/VPSjojXl/oaSXcEWWZl5IiHjtXPgeEgYFc+9pQvVaYMiTFnQ2VOAXorVOfFJokwI0wGpoE1sanY2fefDnV1w5/2DyOzK9x3rsZH+AonQKdnTfKJdsd4/8tJcEy87ZsTLh0vhiLJSVIwh9jls1PoEn3gA52FL4= Received: by 10.36.251.76 with SMTP id y76mr4724470nzh; Tue, 29 Nov 2005 08:43:42 -0800 (PST) Received: by 10.36.5.14 with HTTP; Tue, 29 Nov 2005 08:43:42 -0800 (PST) Message-ID: <57d710000511290843s3dc816a9r4bd5a92836aed340@mail.gmail.com> Date: Tue, 29 Nov 2005 08:43:42 -0800 From: pete wright To: =?ISO-8859-1?Q?Eirik_=D8verby?= In-Reply-To: <460BE48B-594F-4450-AFA7-1652B7C6800A@anduin.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <84dead720511280545v2bc0bc35jd107da06b9a788cb@mail.gmail.com> <02757598-222D-408E-8B33-C2EE1E6E426E@anduin.net> <20051128211440.GB28963@xor.obsecurity.org> <3A601A32-94D1-49F6-AB06-ED54D50D4B6A@anduin.net> <20051128235911.GA31669@xor.obsecurity.org> <20051129094531.Y23958@anduin.net> <20051129091533.GA41885@xor.obsecurity.org> <20051129103719.GB43032@xor.obsecurity.org> <460BE48B-594F-4450-AFA7-1652B7C6800A@anduin.net> Cc: stable@freebsd.org, Scot Hetzel , Joseph Koshy , Kris Kennaway Subject: Re: Reduced java/tomcat performance 6-beta3 -> 6-stable ? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Nov 2005 16:43:55 -0000 On 11/29/05, Eirik =D8verby wrote: > > On Nov 29, 2005, at 11:37 , Kris Kennaway wrote: > > > On Tue, Nov 29, 2005 at 10:25:07AM +0100, Eirik ?verby wrote: > >> > >> On Nov 29, 2005, at 10:15 , Kris Kennaway wrote: > >> > >>> On Tue, Nov 29, 2005 at 09:46:09AM +0100, Eirik Oeverby wrote: > >>>> > >>>> > >>>> On Mon, 28 Nov 2005, Kris Kennaway wrote: > >>>> > >>>>> On Mon, Nov 28, 2005 at 10:53:00PM +0100, Eirik ?verby wrote: > >>>>>> Firmware versions are equal. BIOS settings are equal. > >>>>>> However, a diff of the dmesgs show (apart from MAC address > >>>>>> differences): > >>>>>> > >>>>>> 30c30 > >>>>>> < Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000 > >>>>>> --- > >>>>>>> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 > >>>>>> > >>>>>> What on earth is that all about? The "slow" box has the ACPI-fast > >>>>>> timecounter... > >>>>> > >>>>> Could be ACPI bugs on your system: > >>>> > >>>> Yes, but the other system is 100% equal - hardware, bios config, > >>>> bios and > >>>> bootblock revision, controller bioses, etc. etc. > >>>> It all matches. > >>> > >>> Clearly they're not 100% equal, but (100-epsilon)%. Your job is to > >>> identify the origin of the epsilon :-) > >> > >> Yea yea ;) Working on it.. > >> Is there a way to force ACPI-safe on the slower system? > > > > I think someone already mentioned this..see the > > kern.timecounter.hardware and other kern.timecounter sysctls. > > I have now forced ACPI-safe on the slow system, to match the fast one. > Too bad though, it made absolutely zero difference. > > I'm upgrading BIOSes on both boxes now, even though they seem equal. > Then I'll see what ACPI debug output shows me. If you have any other > hints or ideas, please let me know... thanks so far. > > /Eirik Have you tired turning off ACPI at boot time. Is there an option to turn it off in the BIOS. This is an HP box correct? I have had some fun in the past chasing down hard to reproduce ACPI problems on HP hardware before, after much software trouble shooting I realized that by turning some knob's in the BIOS got the machines to a stable state (in my case I turned off USB "auto detection"). HTH -pete > > > > > Kris > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > -- ~~o0OO0o~~ Pete Wright www.nycbug.org NYC's *BSD User Group