log buffer gets written a) every 3 seconds b) every commit (more or less) c) 1/3 full d) 1M full
thus its unrelated to redo log file size, and in most cases unlikely that anything above 512k-1m is going to give benefits. Check for 'log buffer waits' in your statspack data. hth connor --- Denham Eva <[EMAIL PROTECTED]> wrote: > Hello, > > I have been wondering about how to work out what the > optimal LOG_BUFFER > parameter, > compared to the physical size of the REDOLOG file, > for the best optimization > and writes from buffer to log. > Or am I barking up the wrong tree? Is there some > other way of doing this. > > i.e. redolog file size is 10M and LOG_BUFFER is > 512000. > Can this be optimized better? > > > Denham Eva > Oracle DBA > In UNIX Land > On a quiet Night, you can hear the Windows machines > reboot. > > > ##################################################################################### > This e-mail message has been scanned for Viruses and > Content and cleared > by MailMarshal > For more information please visit > www.marshalsoftware.com > ##################################################################################### > ===== Connor McDonald http://www.oracledba.co.uk (mirrored at http://www.oradba.freeserve.co.uk) "Some days you're the pigeon, some days you're the statue" __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?Connor=20McDonald?= INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
