RE: High DML Table - Suggestions??

From: Hillman, Alex <Alex.Hillman_at_usmint.treas.gov>
Date: Mon, 20 Aug 2001 14:28:59 -0700
Message-ID: <F001.003719E1.20010820143702@fatcity.com>

Also I would have high PCTFREE to lessen number of records per block - if you will have a lot of buffer busy waits. If you have enough memory - simply increase size of KEEP pool to get enough space for needed number of CR blocks. You will have to experiment with size of KEEP pool and v$buffer_pool_statistics - purpose to eliminate physical reads.

Alex Hillman

-----Original Message-----
Sent: Monday, August 20, 2001 6:04 PM
To: Multiple recipients of list ORACLE-L

Don't put it in a buffer keep because of the amount of consistent gets the table could have. It seems to be a high volatile table.

Maybe it is too late but you should look on the initrans, freelist of the table. Also if the table has foreign keys, talk with Development to leave the table without them. I should consider to partition the table....maybe a hash one.

Regards.

• Walter K <alden14004_at_yahoo.com> wrote:
  > Hi,
  >
  > I have a table that is going to have a large amount
  > of
  > inserts, updates and deletes performed against it
  > daily. Approximately 1,000,000 transactions per day
  > (some single-record, some multi-record). The table
  > is
  > ~100Mb in size.
  >
  > I'm looking for some suggestions on what I can do to
  > have the most optimal I/O for the table. I've been
  > doing a little reading about buffer pools. Is
  > assigning this table to a KEEP pool a practical
  > approach or is that not going to buy me anything
  > because DML is involved? Does anyone have any other
  > suggestions?
  >
  > Unfortunately, I can't put the table on a dedicated
  > disk and I am stuck with Raid-5 currently.
  >
  > Any suggestions would be appreciated.
  >
  > Thanks in advance!
  > -w
  >
  > __________________________________________________
  > Do You Yahoo!?
  > Make international calls for as low as $.04/minute
  > with Yahoo! Messenger
  > http://phonecard.yahoo.com/
  > --
  > Please see the official ORACLE-L FAQ:
  > http://www.orafaq.com
  > --
  > Author: Walter K
  > INET: alden14004_at_yahoo.com
  >
  > 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: ListGuru_at_fatcity.com (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).
  

  ---

Eng. Christian Trassens
Senior DBA
Systems Engineer
ctrassens_at_yahoo.com
ctrassens_at_hotmail.com
Phone : 541149816062

---

Do You Yahoo!?
Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Christian Trassens
  INET: ctrassens_at_yahoo.com

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: ListGuru_at_fatcity.com (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: Hillman, Alex
  INET: Alex.Hillman_at_usmint.treas.gov

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: ListGuru_at_fatcity.com (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).

Received on Mon Aug 20 2001 - 16:28:59 CDT