RE: 10gR2 Performance sux!

You might need to analyze the system tables. You can do that now in 10g. You also need to make sure the dbms_scheduler has an automated job that is computing your stats for you.

Pat

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] 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-UX11,10.2.0.3, FIRST_ROWS. (Migrated from 9.2.0.7) PeopleSoft Financials.

Thanks.

Abraham

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Clarke, Andrew Sent: Friday, June 15, 2007 4:02 AM
To: yoursraju007_at_gmail.com; amit.poddar_at_yale.edu; 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
set
>> 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!

http://www.itcork.ie/files/eventresources/ITCorkOracle.pdf

Cheers, APC

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

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