RE: Oracle 10g upgrade - performance issue

  • From: "Igor Neyman" <ineyman@xxxxxxxxxxxxxx>
  • To: <peterdixon001@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Tue, 11 Jul 2006 13:48:03 -0400

Check if you have objects statistics collected. 

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Peter Dixon
Sent: Tuesday, July 11, 2006 1:43 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Oracle 10g upgrade - performance issue


Upgraded 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



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