Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Mailing Lists -> Oracle-L -> Re: db file sequential read - again

Re: db file sequential read - again

From: Nigel Thomas <nigel_cl_thomas_at_yahoo.com>
Date: Tue, 13 Mar 2007 07:21:25 -0700 (PDT)
Message-ID: <468562.57261.qm@web58708.mail.re1.yahoo.com>


Jeff

Q1) Can somebody re-explain [db_file_sequential_read wait event] please?

Sequential also refers to table blocks read by rowid (ie single block rather than multi-block reads).

Handy memo guide here: http://www.adp-gmbh.ch/ora/tuning/event.html (4th on Google after various Burleson dba-oracle.com hits).

Q3) I'm thinking of putting hot indexes into their own buffer pool since I've got tons of memory. Does this sound like a reasonable approach to you folks?

Personally, I'd rather let Oracle manage a single pool. A separate pool means you are assuming that by default Oracle will choose inappropriate blocks to page out. Of course you may be right... :-)

Regards Nigel

--
http://www.freelists.org/webpage/oracle-l
Received on Tue Mar 13 2007 - 09:21:25 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US