Re: Capacity Planner

Sony,

> I try to use mercury data load runner. But I'm not sure whether it can checks Oracle IAS server.

I think there is a lot about your situation that you aren't telling us. With no real info to go on, you aren't likely to receive useful input from us. I think there are two separate areas. Capacity planning can mean specifying the system configuration before an application is put into production. However it can also mean predicting the future for an existing production system. The approaches taken are quite different. Since you mention Load Runner, I assume that you do not yet have a production system. When you mean "checks IAS", are you interested whether it can put a load against IAS or if it can monitor IAS performance?

     I have not had the delight of predicting a new system's performance. Perhaps someone who has had that pleasure recently will respond to your question.

     I feel that the best function of a tool like Load Runner is to simulate a production load on a system. I would put some thought into the jobs you ask it to execute, and put even more thought into how you interpret the results. You may even want to consider analyzing whether the application itself is optimized for performance. Besides the performance indicators that the tool can provide, you should also do your own performance analysis using system statistics, Oracle statistics, etc. Review Cary Millsap's book Optimizing Oracle Performance.

Dennis Williams

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