Re: real-time Java

[Wesley Groleau <wesgroleau@despammed.com>]

>>(Another thing that would be nice is a JVM that is
>>a shared library or resident in the OS or something,
>>instead of--this is for multi-user environments, BTW--
>>having every Java program running its own copy of the JVM.)
> 
> Unix and Windows will load only one copy of a binary no matter if it's
> an executable or shared library. So there is only one copy of the
> garbage collector code. I don't see how collector data could be shared
> though.

I can't speak for windows, but this is not true
of Solaris.  The project I recently left had a
problem reporting/tracking tool in Java.  Everybody
used it.  That mean that at any given time, the
physical memory and swap space had twenty to thirty
copies of the JVM running, and each copy had additional
memory allocated to all the same classes.