(Whilst I hate "rule of thumb") I'd give it a whirl at 192-256k or thereabouts and see what happens..
hth connor --- "Farnsworth, Dave" <[EMAIL PROTECTED]> wrote: > My LOG_BUFFER = 32768 > > This seems a bit small. > > -----Original Message----- > Sent: Wednesday, July 31, 2002 6:13 AM > To: Multiple recipients of list ORACLE-L > > > No it does not - but the 'redo log space requests' > (imho) is not a good stat for log buffer space > sizing, > since its common to get this number going up when > you > switch logs (because briefly everyone is told 'hands > off the log buffer'). > > I prefer the 'log buffer space' wait in > v$system_event, v$session_event. Its rare in > "typical" systems for a log buffer over (say) > 512-1024k to provide any benefit. > > hth > connor > > --- "Farnsworth, Dave" > <[EMAIL PROTECTED]> wrote: > I am > doing > some performance monitoring on an 8.1.7 > > DB on Windoze. I ran the following query; > > > > SQL> select name,value > > 2 from v$sysstat > > 3 where name = 'redo log space requests'; > > > > NAME > > > VALUE > > > ---------------------------------------------------------------- > > ---------- > > redo log space requests > > > 27 > > > > > > If the number of 'redo log space requests' is much > > over zero then I should increase the LOG_BUFFER > size > > in my init.ora, at least that is what I get from > > RTFM. One question I have is that does the size > of > > the LOG_BUFFER parameter have to be a multiple of > > the DB_BLOCK_SIZE parameter? I vaguely remember > > that it shuold be but have not found anything in > TFM > > to verify this. > > > > Thanks, > > > > Dave > > -- > > Please see the official ORACLE-L FAQ: > > http://www.orafaq.com > > -- > > Author: Farnsworth, Dave > > 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). > > ===== > Connor McDonald > http://www.oracledba.co.uk > http://www.oaktable.net > > "Remember amateurs built the ark - Professionals > built the Titanic" > > __________________________________________________ > 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). > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.com > -- > Author: Farnsworth, Dave > 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). ===== Connor McDonald http://www.oracledba.co.uk http://www.oaktable.net "Remember amateurs built the ark - Professionals built the Titanic" __________________________________________________ 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).
