Date: Mon, 18 Mar 2013 15:21:43 -0000 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Mehmet Erol Sanliturk" <m.e.sanliturk@gmail.com> Cc: freebsd-current@freebsd.org, Nathan Whitehorn <nwhitehorn@freebsd.org> Subject: Re: FreeBSD is very slow when Memory chip sizes are imbalanced in slots Message-ID: <D956B1EE70984978BCB396A9796EAEDD@multiplay.co.uk> References: <CAOgwaMss0cB9bFqCkjzukb-=9FqgLN9vthL5QdQsk-6Lknk5VQ@mail.gmail.com><CAFHbX1LcCGoWy%2BHzp8T7z4noFZAMK1-sCuWpO_Z_ybhnoMMY5A@mail.gmail.com><CAOgwaMtTmx4LhEdrg3WNjZA-uyTRSN913RBWrrqMia4GZhP_zA@mail.gmail.com><CAFHbX1KkD7fWP%2BKZNrSjzCStUM_Smjw7GdKDTo=DjjMoe5ttGA@mail.gmail.com><35878.1363607691@critter.freebsd.dk><CAOgwaMthTbj5k%2B03WSNGK7wm0aTufd1czQotM1wF0mAVnU7HLQ@mail.gmail.com><514715F9.2080506@freebsd.org><D09D34E518E94C3CAC98DAE7486CE62A@multiplay.co.uk><CAOgwaMvsoa=TWebXq14VzvNrNQZuLg9Kr63-tmq8ZZ42%2B79mOQ@mail.gmail.com><F5063459450D4CB4B15B9DC3F0EE27B1@multiplay.co.uk> <CAOgwaMtiPyvZvUj=XDUDVuuAJ%2BVvNtn9TQngQQn7q7grvz8=5Q@mail.gmail.com>
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>> ----- Original Message ----- From: Mehmet Erol Sanliturk >>> >>> Surely you can eliminate all of those and confirm / deny the original >>>> diagnosis by simply installing balanced memory in the machine and >>>> checking >>>> to see if the problem goes away? >>>> >>> >>> Please see links in my previous mails . >>> All of these are worked in detail . >>> >>> This is Intel DG965WH main board and I do not know much about NUMA , but >>> with respect to Wikipedia Non-Uniform_Memory_Access page , it seems that >>> there is no NUMA structure in this main board . >>> >> >> But have you installed balanced memory and confirmed the problem goes away? > > Yes . > > > http://lists.freebsd.org/pipermail/freebsd-current/2012-February/031836.html > http://lists.freebsd.org/pipermail/freebsd-current/2012-February/031912.html > http://lists.freebsd.org/pipermail/freebsd-current/2012-February/031928.html > http://lists.freebsd.org/pipermail/freebsd-current/2012-February/032012.html > You state there that "The main boards are the same" which indicates to me the machines aren't the same machine which could result in some other subtle difference causing the problem. To confirm you'll need to use the "exact same machine" for tests with the only difference being the ram modules installed. Regards Steve =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it.=20 In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk. From owner-freebsd-current@FreeBSD.ORG Mon Mar 18 15:26:17 2013 Return-Path: <owner-freebsd-current@FreeBSD.ORG> Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 55495374; Mon, 18 Mar 2013 15:26:17 +0000 (UTC) (envelope-from phk@phk.freebsd.dk) Received: from phk.freebsd.dk (phk.freebsd.dk [130.225.244.222]) by mx1.freebsd.org (Postfix) with ESMTP id 169B6254; Mon, 18 Mar 2013 15:26:16 +0000 (UTC) Received: from critter.freebsd.dk (critter.freebsd.dk [192.168.61.3]) by phk.freebsd.dk (Postfix) with ESMTP id C9BAB8A525; Mon, 18 Mar 2013 15:26:15 +0000 (UTC) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.14.6/8.14.6) with ESMTP id r2IFQFoE036507; Mon, 18 Mar 2013 15:26:15 GMT (envelope-from phk@phk.freebsd.dk) To: "Steven Hartland" <killing@multiplay.co.uk> Subject: Re: FreeBSD is very slow when Memory chip sizes are imbalanced in slots In-reply-to: <D956B1EE70984978BCB396A9796EAEDD@multiplay.co.uk> From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> References: <CAOgwaMss0cB9bFqCkjzukb-=9FqgLN9vthL5QdQsk-6Lknk5VQ@mail.gmail.com><CAFHbX1LcCGoWy+Hzp8T7z4noFZAMK1-sCuWpO_Z_ybhnoMMY5A@mail.gmail.com><CAOgwaMtTmx4LhEdrg3WNjZA-uyTRSN913RBWrrqMia4GZhP_zA@mail.gmail.com><CAFHbX1KkD7fWP+KZNrSjzCStUM_Smjw7GdKDTo=DjjMoe5ttGA@mail.gmail.com><35878.1363607691@critter.freebsd.dk><CAOgwaMthTbj5k+03WSNGK7wm0aTufd1czQotM1wF0mAVnU7HLQ@mail.gmail.com><514715F9.2080506@freebsd.org><D09D34E518E94C3CAC98DAE7486CE62A@multiplay.co.uk><CAOgwaMvsoa=TWebXq14VzvNrNQZuLg9Kr63-tmq8ZZ42+79mOQ@mail.gmail.com><F5063459450D4CB4B15B9DC3F0EE27B1@multiplay.co.uk> <CAOgwaMtiPyvZvUj=XDUDVuuAJ+VvNtn9TQngQQn7q7grvz8=5Q@mail.gmail.com> <D956B1EE70984978BCB396A9796EAEDD@multiplay.co.uk> Content-Type: text/plain; charset=ISO-8859-1> Date: Mon, 18 Mar 2013 15:26:15 +0000 Message-ID: <36506.1363620375@critter.freebsd.dk> Cc: Nathan Whitehorn <nwhitehorn@freebsd.org>, freebsd-current@freebsd.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current <freebsd-current.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>; List-Post: <mailto:freebsd-current@freebsd.org> List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, <mailto:freebsd-current-request@freebsd.org?subject=subscribe> X-List-Received-Date: Mon, 18 Mar 2013 15:26:17 -0000 In message <D956B1EE70984978BCB396A9796EAEDD@multiplay.co.uk>, "Steven Hartland" writes: >You state there that "The main boards are the same" which indicates to me >the machines aren't the same machine which could result in some other subtle >difference causing the problem. > >To confirm you'll need to use the "exact same machine" for tests with the only >difference being the ram modules installed. Or, at the very least, switch _all_ the RAM between the two machines, and confirm that the problem follows the RAM. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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