Return-Path: Delivered-To: 2-oracle-l@orafaq.com Received: (qmail 18336 invoked from network); 8 Aug 2007 13:57:55 -0500 Received: from freelists-180.iquest.net (HELO turing.freelists.org) (206.53.239.180) by 69.64.49.119 with SMTP; 8 Aug 2007 13:57:55 -0500 Received: from localhost (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 7E6EA723995; Wed, 8 Aug 2007 14:55:37 -0400 (EDT) Received: from turing.freelists.org ([127.0.0.1]) by localhost (turing.freelists.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 19028-02; Wed, 8 Aug 2007 14:55:37 -0400 (EDT) Received: from turing (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id C1147722448; Wed, 8 Aug 2007 14:55:35 -0400 (EDT) Received: with ECARTIS (v1.0.0; list oracle-l); Wed, 08 Aug 2007 14:13:29 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 6AFBE724EEA for ; Wed, 8 Aug 2007 14:13:29 -0400 (EDT) Received: from turing.freelists.org ([127.0.0.1]) by localhost (turing.freelists.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 07093-01 for ; Wed, 8 Aug 2007 14:13:29 -0400 (EDT) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.188]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 18247723623 for ; Wed, 8 Aug 2007 14:13:27 -0400 (EDT) Received: by nf-out-0910.google.com with SMTP id 4so57633nfv for ; Wed, 08 Aug 2007 11:15:45 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=ukoPiJZNlSpASJdMZdpjP0fW7/yPi0vOLEJzw6DRFdQw8Ugck/7mxnmEavYS1M4uzripwtprWlIds2BINSRH0SOqyTckNusPBoDwxUL3nNOnJxbpYLgCth4oH8k8QJGx8cKZFRBbx2UuHJpQ48N90oehIJaWm5AcJgHa2x6CoEY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=MB7BYNpOAwJZO0OsEnhURwmPmixRvnkdZbU5MksHt6Wi9vYN16cl3TUud63275V+3EQTC+Vqq/GdTpim+9kBxKJfO+V60xjrsb30LoHjFs6vVxWkpYE1yqSrunwKp/D5iC6KGMAX2SOSbBnYxKZ3qe3C+yhvHTvPDK7XPngmjQ0= Received: by 10.78.200.3 with SMTP id x3mr199041huf.1186596944778; Wed, 08 Aug 2007 11:15:44 -0700 (PDT) Received: by 10.78.163.19 with HTTP; Wed, 8 Aug 2007 11:15:44 -0700 (PDT) Message-ID: <4ef2fbf50708081115u7bc1fc1oae33853be74b6547@mail.gmail.com> Date: Wed, 8 Aug 2007 20:15:44 +0200 From: "Alberto Dell'Era" To: oracle-l Subject: Re: pga_aggregate_target and CBO plan In-Reply-To: <46B9FADA.20707@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline References: <6A4102F59ECFA248B81F7D08F0317978017F675A@TBDCEXCH01.US.Cingular.Net> <46B9FADA.20707@gmail.com> X-archive-position: 429 X-ecartis-version: Ecartis v1.0.0 Sender: oracle-l-bounce@freelists.org Errors-to: oracle-l-bounce@freelists.org X-original-sender: alberto.dellera@gmail.com Precedence: normal Reply-to: alberto.dellera@gmail.com List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: oracle-l X-List-ID: oracle-l List-subscribe: List-owner: List-post: List-archive: X-list: oracle-l X-Virus-Scanned: Debian amavisd-new at localhost.localdomain And if you want to go very deep, there's another paper that explains the algorithms in a very, very detailed way: "SQL Memory Management in Oracle9i" by Dageville et others: http://www.cs.ust.hk/vldb2002/VLDB2002-proceedings/papers/S29P03.pdf On 8/8/07, amar kumar padhi wrote: > Hi, > Jonathan has a good article at > http://www.jlcomp.demon.co.uk/untested.html that may give some good > insight into how memory plays with different PGA settings. I believe > this would show up on the execution plan cost. -- Alberto Dell'Era "the more you know, the faster you go" -- http://www.freelists.org/webpage/oracle-l