From owner-freebsd-current@FreeBSD.ORG Mon Mar 18 20:43:02 2013 Return-Path: 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 28C33DF3 for ; Mon, 18 Mar 2013 20:43:02 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: from mail-vb0-x235.google.com (mail-vb0-x235.google.com [IPv6:2607:f8b0:400c:c02::235]) by mx1.freebsd.org (Postfix) with ESMTP id BA23C96C for ; Mon, 18 Mar 2013 20:43:01 +0000 (UTC) Received: by mail-vb0-f53.google.com with SMTP id fj18so3736182vbb.12 for ; Mon, 18 Mar 2013 13:43:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:cc:content-type; bh=24OGNYqAG9L7LEFqnS9oig5ZQBHt921uhTjJYbFqwuI=; b=CWoXd9AR4eV4YrZZTNyindrLocJbxdqd8T7NmkuM97p2PFL+HRzjp9f2lS8hv+wuCC BmZpLEEqfK5wUHxqwbTJ9wMXWrIy1jpDb4F1TwRH+LrnYTDeSKkboi0SGelkMXijpHCc FENaVKlMWs5oaTeXmoi0NIH0wr1c+R7/BWBuzBTyA4JPVRz4pxI/IhkUjpXDYyhVev4a LkA7fv1F1kZsuJaLpuWMAzxDSwfM9hrdQylakonL315SuCIGSLLWTRaF5juWIN+QWJaD rK/tMnCh9/03xQssYCOZbbl3tSVfhRbeIA5B2njirmhaDxFoRANgJhoBl2tmXUoxqowO RRcg== MIME-Version: 1.0 X-Received: by 10.52.27.17 with SMTP id p17mr19319091vdg.0.1363639381182; Mon, 18 Mar 2013 13:43:01 -0700 (PDT) Received: by 10.58.132.203 with HTTP; Mon, 18 Mar 2013 13:43:01 -0700 (PDT) In-Reply-To: References: <35878.1363607691@critter.freebsd.dk> <514715F9.2080506@freebsd.org> <43BD412145BF4C7A9E2EFF91CF2ED379@multiplay.co.uk> Date: Mon, 18 Mar 2013 13:43:01 -0700 Message-ID: Subject: Re: FreeBSD is very slow when Memory chip sizes are imbalanced in slots From: Mehmet Erol Sanliturk To: Scot Hetzel Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Mar 2013 20:43:02 -0000 On Mon, Mar 18, 2013 at 9:48 AM, Scot Hetzel wrote: > On Mon, Mar 18, 2013 at 11:06 AM, Mehmet Erol Sanliturk > wrote: > > Computer A : Memory Chip Sizes : ( 2 GB , 1 GB , 2 GB , 1 GB ) : Working > > SLOW . FreeBSD A > > Computer B : Memory Chip Sizes : ( 2 GB , 2 GB , 2 GB , 2 GB ) : Working > > FAST . FreeBSD B > > > > Interchange memory chips : > > > > Computer A : Memory Chip Sizes : ( 2 GB , 2 GB , 2 GB , 2 GB ) : Working > > FAST . FreeBSD A > > Computer B : Memory Chip Sizes : ( 2 GB , 1 GB , 2 GB , 1 GB ) : Working > > SLOW . FreeBSD B > > > > > > What happens if you configure the memory as ( 2 GB , 2 GB , 1 GB , 1 GB )? > > -- > DISCLAIMER: > > No electrons were maimed while sending this message. Only slightly bruised. > This can NOT be done , because Channel A : Slot 1 : Slot 2 : Channel B : Slot 1 : Slot 2 : ( Slot 1 , Slot 1 ) should be equivalent when chips inserted to both . ( Slot 2 , Slot 2 ) should be equivalent when chips inserted to both . Thank you ver much . Mehmet Erol Sanliturk