RE: 10gR2 Performance sux!

  • From: "Kerber, Andrew W." <Andrew.Kerber@xxxxxxx>
  • To: AGUERRA@xxxxxxxxx, "oracle-l" <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 15 Jun 2007 11:15:29 -0500

Exec dbms_stats.gather_dictionary_stats;

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Guerra, Abraham J
Sent: Friday, June 15, 2007 10:31 AM
To: oracle-l
Subject: RE: 10gR2 Performance sux!

Hello gurus,

I'm also having performance issues with 10g.  Why would my dictionary
queries take a long time to return... in 9i they used to take seconds,
now they take minutes or they just never come back... This happens when
I query dba_data_files or dba_tablespaces...  The application queries
are not too bad.

Any tips will be appreciated.

The database is in HP-UX11,, FIRST_ROWS.  (Migrated from  PeopleSoft Financials.



-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Clarke, Andrew
Sent: Friday, June 15, 2007 4:02 AM
To: yoursraju007@xxxxxxxxx; amit.poddar@xxxxxxxx; oracle-l
Subject: RE: 10gR2 Performance sux!

>>  Well, I could not user opt_param.. as I can't touch SQLs, they come
>>  from 3rd party tool. So, I have created an after login trigger to
>>  this parameter at session level.

Dan Hotka has a presentation called "Tuning SQL when you cannot change
the code!"  

It could help you understand what your options  are for tackling your
problem.  Good luck!

Cheers, APC

A P Clarke 
Software Architect
LogicaCMG UK Public Sector Division
Stephenson House
75 Hampstead Road 
NW1 2PL 
Direct Tel: +44 (0)207 446 4006
Fax: +44 (0)207 446 1352
Email: andrew.clarke@xxxxxxxxxxxxx 

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