src/java.desktop/share/classes/sun/java2d/pipe/RenderQueue.java

sets a BufferSize of 32000

I looked into the history and this was the size set in the first push into JDK in 2005 (!)
when teamware/SCCS was used.

So it was a size chosen during early development of the OGL pipeline on computers that are 15 years old.

It is a Java-side buffer and we probably had slower systems filling the buffer and it should not
much affect what happens on the native side.

I think we can bump this (big time?) if it improves performance.