in reply to keep a module in shared memory

Questions you should ask yourself: "are my programs running out of memory?" and "is my application unacceptably slow in starting up?"

If the answer to those questions is "no" then changing to a client-server solution may just be an unnecessary optimization, likely to increase the development and maintenance cost of your application for no good reason.

As the saying goes: The better is the enemy of the good.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In Section Seekers of Perl Wisdom