users@fi.java.net

JAXB Speed

From: Alan Hudson <giles_at_yumetech.com>
Date: Fri, 05 Jan 2007 10:51:44 -0800

Your post on VTD speed brings up an issue for me. We've just started
rolling into the JAXB 2.0 codebase and looking at its FI integration.
Do you know of any benchmarks showing speedups there? The 1.0 to 2.0
JAXB changeover has caused a lot of primitive types to become Java
Objects, so my own benchmarks are not really revealing any speedups(or
at least the gc collector is making my maximum latency increase). It
would help me to know that you are seeing some.

In general were working on XML message passing schemes. Trying for
1000hz sending rate of small messages. Not sure its really possible
using JAXB, but we are trying.

Good news though, it just worked, no problems. I haven't figured out
how to use my own pre-defined vocabulary to make the messages even
smaller, but it saved about 30-40% bandwidth already on small messages.

-- 
Alan Hudson
President Yumetech, Inc.                               www.yumetech.com
President Web3D Consortium                             www.web3d.org
206 340 8900