Posted by Taif on Jun 21, 2010; 10:11pm
URL: https://forum.jogamp.org/GlDrawableHelper-allocates-unecessary-Iterator-tp912785.html

I've recently fallen love with the java allocation instrumenter

http://code.google.com/p/java-allocation-instrumenter/

Garbage collection can be a pain when you're trying to create visuals that run smooth as milk. The solution? Never allocate anything while the "visuals" are running (front load all the allocation).

However, I'm being bugged by the fact that GLCanvas.display calls com.jogamp.opengl.impl.GlDrawableHelper's display method, which creates an AbstractIterator just to iterate an ArrayList.

Of course, I'd fix this myself, but then I wouldn't have the nice signed-applet-certificates that you guys offer.

Are all those iterators really necessary? Perhaps its some really subtle concurrency detail?

Tl;Dr? com.jogamp.opengl.impl.GlDrawableHelper allocates an Iterator every frame - and I'm trying to reduce the allocation footprint of my opengl app.