Folks, I am migrating an application that makes use of validating XML parsing. It made use of the crimson parser and we are moving to xerces.
The XML documents I encounter have a huge DTD they need to be validated against. On many occasions the documnents are actually much smaller than the DTD! Crimson had no way to cache grammars so the xerces grammar pool looked really exciting for performance gains. However, after enabling grammar caching, and running comparison with my codebase on JDK 1.4.2 + Crimson vs JDK 5 + Xerces, I see negligible, if any, performance gain. I am looking at the total CPU time of the Java process as it runs through a suite of about 400 XML files. There is a lot going on apart from XML parsing, but Xerces vs Crimson (and the JDK) are the only major differences between the codebases. My questions are: - Are thre any obvious ways of boosting Xerces performance? In my application, all the documents make use of the same DTD. - I am currently on the xerces version that ships with JDK 5. Will moving to xerces 2.6.2 have any gains? Thanks. -Raj --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
