XOM API for Processing XML with Java

[Mike Colbert <mbcolbert AT yahoo.com>]

What's the most efficient way to process large (in this case up to 1Gb) files
with XOM?

Right now, I'm just using an InputStreamReader on a FileInputStream to read 
the
file contents into a String and then using Builder.build (StringReader) to
create the XOM object, then traversing it sequentially.

It works, and it was easy, but I want to speed things up.

Platform is:

Linux flxdev01 2.6.9-22.0.2.ELsmp #1 SMP Thu Jan 5 17:11:56 EST 2006 x86_64
x86_64 x86_64 GNU/Linux

java version "1.5.0_04"

Thanks,
Mike