Well, I was talking about cursors, sort areas and hash areas. I probably did confuse "GA stuff". On 2003.06.02 22:27 Tim Gorman wrote: > Almost. It is the UGA areas (not the PGA) for Shared Server (a.k.a. > multi-threaded server) that are re-located to the Large Pool, if it exists. > Otherwise, they reside in the Shared Pool and all hell breaks loose, > performance wise... > > Also, if DBWR_IO_SLAVES > 0, then those IPC queues will reside in the Large > Pool, if it is configured. Otherwise, these reside in the Shared Pool, and > if you think having UGAs from Shared Server in the Shared Pool play hell > with performance, then wait until you are pushing all of your I/O to the > datafiles through the Shared Pool... :-) > > > > on 6/2/03 2:24 PM, Gogala, Mladen at [EMAIL PROTECTED] wrote: > > > Nope, it's not accurate. PGA areas for shared server sessions are also > > allocated from the large pool. > > > > Mladen Gogala > > Oracle DBA > > Phone:(203) 459-6855 > > Email:[EMAIL PROTECTED] > > > > > > -----Original Message----- > > Sent: Monday, June 02, 2003 4:35 PM > > To: Multiple recipients of list ORACLE-L > > > > > > for some reason we have 100MB large pool. I dont think we need it at all. I > > read that its only used by RMAN or Parallel server. Is that accurate? > >> > >> From: DENNIS WILLIAMS <[EMAIL PROTECTED]> > >> Date: 2003/06/02 Mon PM 03:39:42 EDT > >> To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> > >> Subject: RE: question about large pool > >> > >> Use the large pool to store what? I can think of 3 aspects of a > > transaction: > >> - Rollback (you've probably read about SET TRANSACTION) > >> - SQL statements, execution plans (more an issue with bind variables) > >> - Data blocks > >> It sounds like you might be thinking of data blocks. You didn't mention > > your > >> Oracle version, but from 8i on you can define 3 buffer pools. The normal > > one > >> is DEFAULT. You can also define a KEEP and RECYCLE pool. Someone on this > >> list (sorry I can't recall who) pointed out that there isn't anything > > magic > >> about those labels. If your transaction uses different tables from the > > other > >> transactions, you could create what is needed for those tables in one of > >> those pools, assign the tables to that pool, and this would minimize the > >> interference. If all the transactions hit pretty much the same tables, > > then > >> Oracle is probably reusing the blocks anyway. Hope this responds to your > >> question. > >> > >> Dennis Williams > >> DBA, 80%OCP, 100% DBA > >> Lifetouch, Inc. > >> [EMAIL PROTECTED] > >> > >> > >> -----Original Message----- > >> Sent: Monday, June 02, 2003 1:40 PM > >> To: Multiple recipients of list ORACLE-L > >> > >> > >> I think I read this somewhere, but I cant find it. Is it possible to use > > the > >> large pool for a specific transaction? We run alot of large batch DML > >> statements over night. We have one that involves an 8GB table. The blocks > >> from this table are being knocked out of the buffer cache by shorter and > >> quicker batches. > >> > >> Id like to find to store this transaction in memory without having to > > worry > >> about them getting knocked out of memory. > >> Cache wont do it. It will stick get pushed out. > >> > >> -- > >> Please see the official ORACLE-L FAQ: http://www.orafaq.net > >> -- > >> Author: <[EMAIL PROTECTED] > >> 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: Tim Gorman > 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). >
-- Mladen Gogala Oracle DBA -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Mladen Gogala 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).
