Method invocation taking time

[Sunil Chavan]

I am calling DAOImpl method in BO using bo-factory dependancy injection context loader.

I am calculating time of invoking method. I am printing time in console in BO before calling DAOImpl method and then printing time at the start of DAOImpl method.

I am testing it using another thread class which will invoke BO's method which will invoke DAOImpl's method.

I've specified 50 thread in my testing class.

So the method invocation time calculation as follows -
Thread Time
1 - 10 approx 1 Second
11 - 20 approx 2 Seconds
21 - 30 approx 3 Seconds
31 - 40 approx 4 Seconds
41 - 50 approx 5 Seconds

I want that it should not take more than 1 second no matter how may instances are getting called of that DAOImpl.

How can i stop this time consumption taking by DAOImpl method invocation.

Any help would be appreciated.
Thanks in advance.