Oracle Performace Issue

Question

Hi,
I used my notebook with 8GB of memory to upload data into Oracle 11g and then took dump of it and imported onto the prod server which is 32GB memory and 2 Quad Processors.... Now when I run select * from table_name on my laptop which got about 500,000 records it takes 6 seconds but on prod server it takes about 284 seconds...
The only difference between the installation is that my laptop is running OLTP installation and Prod is running on DW configuration... What I dont understand why this is taking so long on prod server and so fast on my laptop...
Can one can point me to right direction?
Thank you in advance..
Regards,
NK

Answer 1

My prod server is in data center and Iam accessing it through the point to point DSL which is 2MB link, and the local is on my notebook.... if the execution time is same then the only thing which i can think of is uploading the data is talking 4 mins or so. Because the link is only 2MB and the time getting the results is spent on sending the data to my computer.
I use Golder6 for querying as its very light weight tool and is quite fast as compared to toad.
Show parameter optimizer on my prod server shows following:
SQL> show parameter optimizer;
NAME                    TYPE     VALUE
optimizer_capture_sql_plan_baselines boolean     FALSE
optimizer_dynamic_sampling     integer     2
optimizer_features_enable     string     11.2.0.1
optimizer_index_caching      integer     0
optimizer_index_cost_adj     integer     100
optimizer_mode               string     ALL_ROWS
optimizer_secure_view_merging     boolean     TRUE
optimizer_use_invisible_indexes boolean     FALSE
optimizer_use_pending_statistics boolean     FALSE
optimizer_use_sql_plan_baselines boolean     TRUE
SQL>
I will past the same from my notebook as I get back home...
The table structure is same on both the machine and have an ID column indexed. I am the only user connecting to the prod server as its a brand new machine with 2 Quad cores (2.4) with 32 GB system memory and Oracle is allowed to use about 24GB of it. The Automatic Memory Management is enabled on the prod server.