Hi Anthony, Am Mittwoch, den 21.06.2006, 07:19 -0700 schrieb Anthony Green: > On Wed, 2006-06-21 at 10:59 +0200, Roman Kennke wrote: > > > Natively compiling the code doesn't yield much of > > > an improvement over jamVM. Some interesting results. > > > > Yeah sure, most of the work is done in native code, so it doesn't really > > matter if the VM is an interpreter, completely compiled or jit. > > I believe Sun's OpenGL backend avoids JNI overhead by writing GUI > commands to a queue in some kind of bytecode, and then having a single > native thread pulling the commands off the queue in a loop to call the > underlying toolkit routines. My understanding is that this worked so > well that they plan on doing the same thing for their other peer ports.
Funny, I was thinking up something similar for our Cairo stuff without ever hearing from Sun's impl, since pushing complicated polygons to Cairo takes one JNI call per point plus a couple more for the actual drawing command. I think writing commands to a queue would give a nice boost. Let's try it soon! /Roman -- “Improvement makes straight roads, but the crooked roads, without Improvement, are roads of Genius.” - William Blake
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