This week's book giveaways are in the Java EE and JavaScript forums.
We're giving away four copies each of The Java EE 7 Tutorial Volume 1 or Volume 2(winners choice) and jQuery UI in Action and have the authors on-line!
See this thread and this one for details.
The moose likes Performance and the fly likes loading java libraries Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of The Java EE 7 Tutorial Volume 1 or Volume 2 this week in the Java EE forum
or jQuery UI in Action in the JavaScript forum!
JavaRanch » Java Forums » Java » Performance
Bookmark "loading java libraries" Watch "loading java libraries" New topic

loading java libraries

Java Chela

Joined: Apr 26, 2004
Posts: 6
I have an application that runs multiple processes. I was trying minimize memory usage. It seems that Each process loads its own set of common library like java.util.*, servlet.jar, xml*.jar etc. SO looks to me that these libraries are getting loaded multiple times increasing the memory usage.

I remember in C/C++, you have option of dynamic linking, where the library is shared between multiple processes.

Is my interpretation correct? ANy suggestions, guidelines?

Ilja Preuss

Joined: Jul 11, 2001
Posts: 14112
Yes, you are correct. Actually this problem is tackled by Sun in the Tiger release:

The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus
It is sorta covered in the JavaRanch Style Guide.
subject: loading java libraries