Thanks, Dennis. Prem, in particular, please go to http://www.hotsos.com/catalog and download the document called "Why you should focus on LIOs instead of PIOs."
Cary Millsap Hotsos Enterprises, Ltd. http://www.hotsos.com Upcoming events: - Hotsos Clinic 101 in Denver, Sydney - Hotsos Symposium 2004, March 7-10 Dallas - Visit www.hotsos.com for schedule details... -----Original Message----- DENNIS WILLIAMS Sent: Monday, August 11, 2003 10:09 AM To: Multiple recipients of list ORACLE-L Prem Head for http://www.hotsos.com and study their documents. Cary Millsap, who is kind enough to participate on this list, has identified LIO as a key performance issue. Dennis Williams DBA, 80%OCP, 100% DBA Lifetouch, Inc. [EMAIL PROTECTED] -----Original Message----- Sent: Monday, August 11, 2003 10:00 AM To: Multiple recipients of list ORACLE-L Thanks a lot Connor. Apart from bind vars.,LIO is a big issue here. 54 million consistent gets. does it mean that db_cache_size (700M) is small ? any good docs or links regarding LIO and how to deal with it ? Can u explain me Connor ? Regards, Jp. >From: Connor McDonald <[EMAIL PROTECTED]> >Subject: Fwd: Re: quick suggestions for tuning ? >Date: 10-08-2003 23:44:25 >Its not really rocket science here... >CPU is at the top of the timed event - and what causes >CPU (or is the most common cause) - logical I/O. 54 >million consistent gets later down in the report >probably a bit of a giveaway there :-) >Next section in the report is some nice queries that >use up 4 or so million buffer gets. Good ones to >start with... As you've already noticed, no bind >variables. >Then some other miscellaneous things - look at how >much free memory you have in most of your pools "SGA >breakdown difference" - might be able to use that >better elsewhere. >cheers >connor -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Prem Khanna J INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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.net -- Author: DENNIS WILLIAMS INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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.net -- Author: Cary Millsap INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
