The timings are for serial execution of the block by the same connection. The text of the block, including bind names, is identical every time. Paul Baumgartel CREDIT SUISSE Information Technology DBA & Admin - NY, KIGA 1 One Madison Avenue New York, NY 10010 USA Phone 212.538.1143 paul.baumgartel@xxxxxxxxxxxxxxxxx www.credit-suisse.com -----Original Message----- From: Alberto Dell'Era [mailto:alberto.dellera@xxxxxxxxx] Sent: Tuesday, March 20, 2007 3:52 PM To: paul.baumgartel@xxxxxxxxxxxxxxxxx Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: Increasing CPU on every execution of an anonymous block sent from WebLogic > Analysis of the trace files for the bind-variable version reveals that the > CPU time to EXEC the anonymous block (and, to a lesser extent, its > constituent INSERT statements) steadily increases. The first time > through the CPU time is about 0.02 second. By the last execution > before the timeout, the CPU time is just about 1.0 second. > Interestingly, the logical I/O stats for each execution are quite low > (<100 current reads and consistent reads) and quite consistent. Are those timings for a serial execution of the block by the same connection, or by concurrent execution by different connections ? Is the block identical for bind variables names also ? ie begin insert ... values (:bind_one); insert ... values (:bind_one); end; or begin insert ... values (:bind_one); insert ... values (:bind_TWO); end; -- Alberto Dell'Era "dulce bellum inexpertis" ============================================================================== Please access the attached hyperlink for an important electronic communications disclaimer: http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html ============================================================================== -- //www.freelists.org/webpage/oracle-l