RE: Oracle 10g upgrade - performance issue

From: Igor Neyman <ineyman_at_perceptron.com>
Date: Tue, 11 Jul 2006 13:48:03 -0400
Message-ID: <F4C27E77F7A33E4CA98C19A9DC6722A20113D81D@EXCHANGE.corp.perceptron.com>

Check if you have objects statistics collected.

-----Original Message-----

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Peter Dixon Sent: Tuesday, July 11, 2006 1:43 PM
To: oracle-l_at_freelists.org
Subject: Oracle 10g upgrade - performance issue

Help!

Upgraded 8.1.7.4 to 10g rel 2 smoothly over the weekend. Batch works fine, but OLTP is causing CPU and disk i/o to max out at 100%, i believe the optimiser is making bad decisions as my introducing rule hints the problem has slightly improved. Any ideas as our SR with Oracle says "tune the code"
also we never got the issues in test.

Peter Dixon

--

http://www.freelists.org/webpage/oracle-l

--

http://www.freelists.org/webpage/oracle-l Received on Tue Jul 11 2006 - 12:48:03 CDT