If I understand what you are asking, after a 'near-death' performance = problems in our transactional environment, we just bought an expensive = load testing tool, Mercury Load Runner, that purportedly will emulate a = 500 hundred concurrent user environment. I like the idea. I'm not sure = about any performance predictions that could be without some basis for = replicating the environment: In our case an identical RAC test system = connected to this Load Runner tool. Anything that stints on the number = of users or software/hardware environment will probably be off the mark. = =20 > -----Original Message----- > From: oracle-l-bounce@xxxxxxxxxxxxx > [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of=20 > ryan.gaffuri@xxxxxxx > Sent: Monday, May 03, 2004 10:38 AM > To: oracle-l@xxxxxxxxxxxxx > Subject: cpu costing while in development >=20 >=20 > anyone have any strategy for using system stats before you go=20 > live to production? Before you know what times the user load=20 > will be highest?=20 >=20 > I would like to atleast do some query tests in development=20 > before putting it in production?=20 >=20 > do you gather system stats and then run a 'worst case'=20 > scenario test case and test it with that? What works for you?=20 >=20 > ---------------------------------------------------------------- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > ---------------------------------------------------------------- > To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx > put 'unsubscribe' in the subject line. > -- > Archives are at //www.freelists.org/archives/oracle-l/ > FAQ is at //www.freelists.org/help/fom-serve/cache/1.html > ----------------------------------------------------------------- >=20 ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------