RE: Global Stats

From: K Gopalakrishnan <kaygopal_at_yahoo.com>
Date: Wed, 29 Jan 2003 23:03:36 -0800
Message-ID: <F001.0053E28E.20030129230336@fatcity.com>

Hi Kirti:

THe algorithm is slightly differnt in 9i. In 8i SMON queries the dictionary (dba_tab_modifications) in once in 3 hours to get the stale stats, and then the stats are flushed to the dictionary from the SGA and the dictionary is updated . The operation is reverse in 9i. THe stats are written to dictionary from SGA once in 15 minutes and then the tables are examined to get the stale stats.

Metalink note 102334.1 has some details..

Best Regards,
K Gopalakrishnan
Bangalore, INDIA

• "Deshpande, Kirti" <kirti.deshpande_at_verizon.com> wrote:
  > Gopal,
  >
  > I should have waited a bit longer..
  > It was about 12 minutes, when I replied...
  >
  > Okay, I will test it out tomorrow..
  > It's getting late :(
  >
  > Now, go eat your lunch.. it's about lunch time for you... :)
  >
  > Regards,
  >
  > - Kirti
  >
  >
  > -----Original Message-----
  > From: K Gopalakrishnan [mailto:kaygopal_at_YAHOO.COM]
  > Sent: Wed 1/29/2003 10:58 PM
  > To: Multiple recipients of list ORACLE-L
  > Cc:
  > Subject: RE: Global Stats
  >
  > Kirti:
  >
  > Sorry for the typo. It is 15 minutes.
  >
  >
  > --- K Gopalakrishnan <kaygopal_at_yahoo.com> wrote:
  > > Kirti:
  > >
  > > I think the interval is changed to 5 minutes from
  > > 3 hours starting from 9i (rel2?).
  > >
  > >
  > >
  > > Best Regards,
  > > K Gopalakrishnan
  > >
  > >
  > >
  > >
  

  ---

Have a nice day !!

---

Best Regards,
K Gopalakrishnan,
Bangalore, INDIA.

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Author: K Gopalakrishnan
  INET: kaygopal_at_yahoo.com

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Received on Thu Jan 30 2003 - 01:03:36 CST