Java 3D will take advantage of any CPU resources available. How much they are
used depends upon the application. Visualization of a static scene will most
likely only use one CPU, because all it is doing is rendering. The more dynamic
the scene, the more a second CPU will be used. More features will stress
more CPU's. In multiscreen environments, it is nice to have one CPU per
screen for rendering. So, the CPU utilization depends on the application.
The other piece to this puzzle is the JVM and its implementation of threads.
As stated here, green threads will yield no parallelism because the OS sees
only one thread. The Solaris production JVM has a very good thread
scheduler. WinNT does a pretty good job as well, win9X less so. I have
heard, but not verified, that win2K has a pretty good thread scheduler.
Doug Twilleager
Sun Microsystems
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> Subject: Re: [JAVA3D] dual processor performance
> To: [EMAIL PROTECTED]
>
> Can anyone from Sun add anything about this?
>
> Evan Drumwright
>
> -----Original Message-----
> From: Olivier fillon <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> Date: Thursday, February 03, 2000 4:18 PM
> Subject: Re: [JAVA3D] dual processor performance
>
>
> >I remember an experience on jdk 1.1.* , with a dual processor box on win
> NT:
> > the JVM was only using one of the CPU and we ended up with a max use of
> >50%, we have solved this by having several JVM but this was a solution only
> >as we had a server which could be fragmented, would not suit a J3D app;
> >I do not know about the current situation, but it may be J3D restriction
> are
> >just VM ones...
> >hope it helps, in any case, it is probably worth testing before buying a
> >dual proc. box
> >
> >Olivier Fillon Minestar Project
> >[EMAIL PROTECTED] Mincom Limited
> >Ph.+61-7-3303-3344 61 Wyandra Street
> >Fax+61-7-3303-3232 Teneriffe Qld. 4005.
> >Australia
> >Company home page: http://www.mincom.com/
> >Personal home page: http://www.powerup.com.au/~fillon
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