Pro*C slowdown after upgrade?

Help!

We have just upgraded from Oracle 7.2 to 7.3 on a Sun/Solaris Sparc 2000. After the upgrade we noticed a performance problem with Pro*C programs that had been running fine. What used to run in 2 hours is now running in 6-8 hours. As an experiment I wrote a simple pl/sql update program to update 10,000 rows in a table. This took 2 minutes. We then took the EXACT same script in placed it in a Pro*C program. The program ran in 12 minutes. We've repeated this test over and over with the same results. Oracle support is lost and has since sent us a patch which they thought would solve the problem but it hasn't.
Has anybody else ran into this? Any help would be appreciated. Yes, we have recompiled all Pro*C programs after upgrading and applying the patch.

Thanks in advance  

• Brian Motzer *
• Oracle DBA/Developer *
• All views contained herein are mine,*
• all mine I tell you! *

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