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POlibxml2 from java
 

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    <p>This question is somewhat related to <a href="https://stackoverflow.com/questions/530064/fastest-xml-parser-for-small-simple-documents-in-java">Fastest XML parser for small, simple documents in Java</a> but with a few more specifics.</p> <p>I'm working on an application which needs to parse many (10s of millions), small (approx. 300k) xml documents. The current implementation is using xerces-j and it takes about 2.5 ms per xml document on a 1.5 GHz machine. I'd like to improve this performance. I came across this article</p> <p><a href="http://www.xml.com/pub/a/2007/05/16/xml-parser-benchmarks-part-2.html" rel="nofollow noreferrer">http://www.xml.com/pub/a/2007/05/16/xml-parser-benchmarks-part-2.html</a></p> <p>claiming that libxml2 can parse about an order of magnitude faster than any java parsers. I'm not sure if I believe it, but it caught my attention. <strong>Has anyone tried using libxml2 from the jvm? If so, is it faster than java dom parsing (xerces)?</strong> I'm thinking I'd still need my java dom structure, but I'm guessing that copying from a c-structured dom into java-dom shouldn't take long. I must have java-dom - sax will not help me in this case.</p> <p><strong>update</strong>: I just wrote a test for libxml2 and it wasn't any faster than xerces... granted my c coding ability is extremely rusty.</p> <p><strong>update</strong> I broadened the question a bit here: <a href="https://stackoverflow.com/questions/3825206/why-is-sax-parsing-faster-than-dom-parsing-and-how-does-stax-work">why is sax parsing faster than dom parsing ? and how does stax work?</a> and am open to the possibility of ditching dom.</p> <p>Thanks</p>
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