Return-Path: Received: from newsfeed.cts.com (newsfeed.cts.com [209.68.248.164]) by naude.co.za (8.11.2/8.11.2) with SMTP id g2DJbnN00845 for ; Wed, 13 Mar 2002 14:37:49 -0500 Received: from fatcity.UUCP (uucp@localhost) by newsfeed.cts.com (8.9.3/8.9.3) with UUCP id LAA12738; Wed, 13 Mar 2002 11:21:22 -0800 (PST) Received: by fatcity.com (26-Feb-2001/v1.0g-b70/bab) via UUCP id 004278B7; Wed, 13 Mar 2002 10:03:43 -0800 Message-ID: Date: Wed, 13 Mar 2002 10:03:43 -0800 To: Multiple recipients of list ORACLE-L X-Comment: Oracle RDBMS Community Forum X-Sender: tday6@csc.com Sender: root@fatcity.com Reply-To: ORACLE-L@fatcity.com Errors-To: ML-ERRORS@fatcity.com From: tday6@csc.com Subject: RE: Oracle taking too much physical memory Organization: Fat City Network Services, San Diego, California X-ListServer: v1.0g, build 70; ListGuru (c) 1996-2001 Bruce A. Bergman Precedence: bulk Mime-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by naude.co.za id g2DJbnN00845 My bad. I didn't notice that he was doing a select * from v$sga and thought that it was the init.ora parameters. My comments on the SGA size were based on WinNT 4.0. I assume, from your comments, that W2K is better about not swapping the RAM out to disk. "MacGregor, Ian A." d.EDU> cc: Sent by: root Subject: RE: Oracle taking too much physical memory 03/13/2002 11:53 AM Please respond to ORACLE-L You have one gigabyte of memory on your machine and your SGA  is  over 700 MB.  That seems excessive   I doubt you need 640 megabytes' worth of block buffers.  There is nothing wrong by the way with nearly exhausting physical memory.   However improperly assigning it is a problem, as is excessive paging. Ian MacGregor Stanford Linear Accelerator Center ian@SLAC.Stanford.edu -----Original Message----- Sent: Wednesday, March 13, 2002 7:29 AM To: Multiple recipients of list ORACLE-L Hi gurus, My Production Box has 1Gb Ram with single 933Mhz PIII processor , though the db is not that big (4 GB), the oracle process is taking too much of memory, causing server to slow down on peak times of the day, and even after words, tonight, I looked up the memory which ORACLE.EXE has taken, its almost 900 MB, why is that so ??? The last restart was a month ago as far as I remember, is this an OPERATING SYSTEM tuning problem or database tuning is required? MY pagefile size is almost 2 GB, but the STATISTICS show that only 4-5 MB of physical memory is free, means the most of the physical memory is used in ORACLE processes, The sga size is following, SQL> select * from v$sga NAME                 VALUE -------------------- ---------- Fixed Size                75804 Variable Size          90701824 Database Buffers      655360000 Redo Buffers              77824 If db tuning is needed, from what point I should start, Also, I haven't analyzed the schemas from long,  The occasion DEAD LOCK problems also show up, Can anybody shed some light, where the choke point is ??? Help and suggestions welcomed, Thanks in Advance, Arslan Zaheer Dar arslandar@skm.org.pk Database Administrator Shaukat Khanum Memorial Cancer Hospital & Research Centre www.shaukatkhanum.org.pk + 92 (042) 5180725 - 34 Ext: 2323 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: tday6@csc.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).