Preventing whitespace text nodes in XalanSourceTreeDocument?

["Murphy, James" <Ja...@excelergy.com>]

Hi,

I'm looking for ways to improve the performance of processing rather large
instances (> 10MB).  Currently takes ~ 1 minute on workstation type
hardware.  

After profiling a bit I noticed most of the time is spent in a child of
XSLTEngineImpl::getSourceTreeFromInput namely parserLiaison.parseXMLStream.

I noticed a little deeper that XalanSourceTreeContentHandler::characters
maintains whitspace characters that end up being text nodes.  I was thinking
I'd like to drop them by preventing calls to m_document->createTextNode.  It
seems that would speed things up a lot since most of the time spent seems to
be in node creation.

But I get the sneaking suspicion that I'm I missing the boat on something.
Is there another way to prevent the creation of whitspace nodes or any other
low hanging fruit I'm not aware of?

Thanks
Jim