Re: Running 1 VM for more Java programs

From: Roedy Green (look-on_at_mindprod.com.invalid)
Date: 07/18/04 

Date: Sun, 18 Jul 2004 19:35:17 GMT

On Sun, 18 Jul 2004 21:24:20 +0200, "Pansje" <NoSpam@NoSpam.nl> wrote
or quoted :

>I get the impression that each time I start a Java program, a new VM is
>started (taskmanager shows java.exe of about 13M for each start). Is this
>really true, or is taskmanager "confused".

That's true. However IIRC there is now a DLL so you don't use quite as
much RAM as you used to. See http://mindprod.com/jgloss/echidna.html
for a way to run several apps in one JVM.

>
>Also I'm not impressed by the startup time of even the most simple
>application. I assume that most of the time is spend on starting the VM.
>Is there a way to start the VM only once, and use that instance for all java
>programs ??

Agreed. The problem is Sun sells servers where the startup time does
not matter. I have some ideas to speed up desktop startup time.
see http://mindprod.com/projects/gespenster.html
http://mindprod.com/projects/suspendedanimation.html

One of the things you can do today is statically compile to exe. See
http://mindprod.com/jgloss/nativecompiler.html
http://mindprod.com/jgloss/jet.html
  

-- 
Canadian Mind Products, Roedy Green.
Coaching, problem solving, economical contract programming. 
See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.

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