Well, first of all: Never upgrade on Friday the 13th :awink:
We have customers of ours both on 9.1d06, 9.1d09, 9.1E and 9.1E04. If there is any difference in repsonse time then the response times are better in the 9.1E versions. But anyway no significant difference in response time between these versions with our application.
Did you already figured out what is slow? Disk IO, System resources.
Did you monitor with sar/promon/vmstat/iostat to find the culprit?
(Do you have windows or Unix/inux platform for database?
Changed anything in the DB parameters. Anything else recntly installed on the same machine?
Different disk setup?
Regards,
Casper.