[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] SAX, expat and JNI
Joerg Brunsmann writes: > assuming that interpreted Java byte code is still slower than > compiled C code, it is desirable to use James' expat XML Parser in > conjunction with SAX to gain maximum performance while parsing XML > documents. Surprisingly, this is an assumption that will not always hold true. On a P166 NT box using Microsoft's jview, for example, AElfred can chew through about 1MB of XML each second. I have not tested XP on an NT box, but since it is about 10-20% faster than AElfred on my Linux notebook, it could be even faster on the NT box as well. In other words, unless you're dealing with very large XML documents (say, 10MB or more), you'll probably lose more time loading the DLL and converting data in the stubs than you'll gain in having a slightly faster parser. My experience in the past has been that at least 90% of your application's time will be spent processing the information delivered by the parser; in fact, you would probably do better to leave the XML parser in Java and implement the event handlers in C. That said, SAX is non-language-specific precisely so that people can do the sort of thing that you propose, and I'll be very interested in following your progress. All the best, David -- David Megginson ak117@f... Microstar Software Ltd. dmeggins@m... http://home.sprynet.com/sprynet/dmeggins/ xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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