Re: bugs

• To: "From: Bill Hibbard <hibbard@xxxxxxxxxxxxxxxxx>" <billh@xxxxxxxxxxxxx>
• Subject: Re: bugs
• From: Doug Lindholm <lind@xxxxxxxx>
• Date: Thu, 10 Jan 2002 17:07:38 -0700

"From: Bill Hibbard " wrote:
> 
> Hi Doug,
> 
> > I have a real-time time series display that periodically updates the
> > time axis. I've been running into some out of memory problems, so I
> > wrote a little test program (attached) that has revealed some bugs. I'm
> > seeing the problems with recent stable and beta versions of the jdk and
> > java3d on Linux and Windows and with the latest visad.jar.
> >
> > 1) After numerous calls (depending on max heap size, less than 5000 with
> > the attached program with jvm defaults) to ScalarMap.setRange(), I get
> > an OutOfMemoryError. Smells like a memory leak. RangeControl.setRange()
> > also leads to an OutOfMemoryError. Hopefully it is not in java3d so we
> > can do something about it. It does not happen with java2d
> > (DisplayImplJ2D), though.
> 
> Since you have a nice test example and are into this, I'd
> appreciate it if you could run under Optimizeit and let me
> know what data where is growing.
> 

Here's the info from Optimizeit:

Class name:                             count:  size:
float[]                                 9797    30347K
Object[]                                220777  8870K
javax.vecmath.Point3d                   74015   3469K
java.util.ArrayList                     69935   2731K
javax.medis.j3d.Shape3DRetained         8561    2073K
javax.media.j3d.J3dMessage              34461   1884K
javax.media.j3d.LineArrayRetained       4280    1772K
int[]                                   19169   1590K
...

Once the setRange loop started, the float[] started dominating and
Point3d climbed up the list.

Hope that helps,
Doug

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| Doug Lindholm, Software Engineer          |  E-mail: lind@xxxxxxxx   |
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• References:
  • Re: bugs
    • From: From: Bill Hibbard <hibbard@xxxxxxxxxxxxxxxxx>