How to make response time fast.

[sweetsriheart]

Hai Friends,

Plz Guide me,
we did a hospital project using J2EE with frontend Flex.
we are using an application created by us, at a time 200 to 300 persons will access concurrently,
the main thing is we get more time to retrieve the data from the database,

v found 3 keypoints...

A. Clustering Servers
B. Embedding Database
C. Memory Caching

but how to do this plz guide me !!!
if u know atleast one thing also guide me plz....

[EINSTEIN_007]

I think that you need to change the your development environment temporarily to: config.cache_classes = true

A good chunk of that 150ms response time is the loading of all the ActiveRecord classes and a lot of meta-programming putting together named_scopes. If you enable caching I'm going to guess the query drops down to somewhere in the neighborhood of 40-70ms.