Subj : Performance of calling external Java method as compared to native Java
To   : netscape.public.mozilla.jseng
From : "Neil Kolban" <kolban@kolban.com>
Date : Sun Oct 05 2003 10:39 pm

Folks,
I am looking at embedding the Rhino JavaScript engine in a product.  To that
end, I have been examining performance capabilities.

I have a Java class called "A" that has a method called "callMe" that takes
a string as a value and does nothing with it.

In JavaScript, I have the following:

var i;
myA = new  A();
for (i=0; i<2000000; i++)
{
      myA.callMe("Hello");
}


In Java, I have the following

A myA = new A();
for (i=0; i<2000000; i++)
{
    myA.callMe("Hello");
}

In JavaScript, the code takes 3578 milliseconds to execute while on the same
machine, the Java code takes 484 milliseconds.  Is this expected?  Is there
any way I can improve the time to call a Java function?

Neil

.