Re: testing memory parameters

mr..._at_gmail.com wrote:
> Hello,
> I'm trying to test how size of the SGA parameters affects the
> database's performace.
> I'm going to test shared_pool_size, db_cache_size and db_nk_cache_size
> parameters.
> I would like to do it properly because these tests will be part of my
> master's thesis.
> I don't have ability to use real database with real users so I must
> simulate test workload.
> I am running Oracle 10g on linux.
> Actually I have written testing program in python using cx_Oracle
> module.
> Program creates several threads, each thread represents one user.
> Users connects to Oracle and execute some SQL queries.
> I compare execution time for analyzed parameter's values.
> I think that I should consider buffer and library cache hit ratios.
> Is this a good way?
>
> These two ways measures only time and physical reads.
> What other issues should I examine?
> Can you give me some hints how can I do it well?
>
> Thanks for all comments and suggestions.
>
> Adam

As long as this is for a Master's thesis I would suggest that you download and install the Oracle OEM Grid Control and Dominic Giles SwingBench program: http://www.dominicgiles.com/swingbench.html.

-- 
Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington
damorgan_at_x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org