The differences are big. I won't go into them here because these are off topic, but if your DB was an 8.1 and migrated in place to 10g, you will have performance problems, especially if there were no changes made to init parameters, you changes hardware platforms (word size), etc.
Another poster said Perl is the last place you should look, and I agree. Your issues are almost assuredly database centric. You should eliminate this as a candidate before you do anything else and the best way to do this is process profiling using 10046 trace files to determine the issues. Cary Milsap has a really exceptional book on this subject - http://www.oreilly.com/catalog/optoraclep/. You should get a copy and read it several times because it is a bigger subject than most can imagine. You should also be looking on metalink for answers on how to trace sessions, although the links I sent you the other day should work fine for starters. Performance issues are a large vague subject and until you can pinpoint the issues, you are like a cat chasing its tail - lots of effort, little reward or progress. rr -----Original Message----- From: Oscar Gomez [mailto:[EMAIL PROTECTED] Sent: Friday, September 08, 2006 9:28 AM To: Reidy, Ron Subject: RE: switching perl version Hi Ron, thanks for your reply I haven't tried the 10046 trace, because I still am studying how to do it. but what is the relationship or the reliance between the cpu performance and oracle under the new versions install. thanks a lot -- Open WebMail Project (http://openwebmail.org) ---------- Original Message ----------- From: "Reidy, Ron" <[EMAIL PROTECTED]> To: "Oscar Gomez" <[EMAIL PROTECTED]>, <dbi-users@perl.org> Sent: Fri, 8 Sep 2006 09:26:47 -0600 Subject: RE: switching perl version > Did you run 10046 traces on the code? > > Have you profiled the code? > > I switched to these same versions a couple of years ago, and have > had no problems. > > rr > > -----Original Message----- > From: Oscar Gomez [mailto:[EMAIL PROTECTED] > Sent: Friday, September 08, 2006 9:04 AM > To: dbi-users@perl.org > Subject: switching perl version > > A perl program executing in linux Redhat 7.0, perl version 5.6, > oracle 8i was using 30% cpu approx. Now I'm running the same > program in linux enterprise ES 4, perl v. 5.8.5, Oracle 10g. uses > 60% cpu. I'd like to know what's happening because the performance > is slower and the difference is wide big. Do you think this perl new > version (5.8.5) takes more cpu ? I appreciate any idea you could > give me to improve my performance. > > -- > Open WebMail Project (http://openwebmail.org) > > This electronic message transmission is a PRIVATE communication > which contains information which may be confidential or privileged. > The information is intended to be for the use of the individual or > entity named above. If you are not the intended recipient, please be > aware that any disclosure, copying, distribution or use of the > contents of this information is prohibited. Please notify the sender > of the delivery error by replying to this message, or notify us by > telephone (877-633-2436, ext. 0), and then delete it from your system. ------- End of Original Message -------
