Also did you run DBMS_PROFILER to find out which operations is taking more time to execute.
-----Original Message----- Khedr, Waleed Sent: Saturday, November 08, 2003 1:09 PM To: Multiple recipients of list ORACLE-L I have a weird problem. It seems that execution speed of pl/sql proc can slow down dramatically as the size of the proc goes up even if nothing gets executed. Let me explain: I have a proc that looks like: Proc test_1 (p1 in out varchar2, p2 in out varchar2) as <some declared variables> begin if condition1 then <big block for string manipulation, two pages of code (substr, instr, etc)> end if; if condition2 then <another big block for string manipulation, two pages of code (substr, instr, etc)> end if; end; If I change the proc to do nothing by altering it this way: Proc test_2 (p1 in out varchar2, p2 in out varchar2) as <some declared variables> begin if false then <big block for string manipulation> end if; if false then <another big block for string manipulation> end if; end; The execution speed goes up a little bit but is still at least 50 percent slower than if I change the proc by removing the code in the "if" clause, look below: Proc test_3 (p1 in out varchar2, p2 in out varchar2) as <some declared variables> begin if false then null; end if; if false then null; end if; end; proc test_3 ran 30 million times in 9 minutes while test_2 ran in 20 minutes. Also test_2 required more CPU resources while running. Also I tried native compilation, which did not do a lot (only 10 % faster). When I looked at the C code generated by the native compilation, I was not very pleased the way native compilation works. Does anybody have a clue why? I tried to include the proc in a package and pin it but there was no difference. Thanks Waleed -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Khedr, Waleed INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Sami INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
