C++ XML parsing library for large files with low RAM consumpion

Question

Which XML library for C++ uses the lowest amount of RAM while parsing e. g. 300M file? Ideally the choice should be restricted to one of RapidXml, Pugixml, Libxml, Boost, TinyXML.

score 2 · Accepted Answer · edited May 23 '17 at 12:14

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You haven't clarified your complete requirements. There are 2 commonly used xml parsing models: DOM and SAX. In DOM the entire file is parsed into memory as a tree where as SAX is more of a event driven library. If you are

not planning to modify the XML & just consume it and
concerned about RAM usage

then using SAX model will be optimum. I will be surprised if half decent implementation of SAX is memory intensive. Also look at this post: Light weight C++ SAX XML parser

edited May 23 '17 at 12:14

Community

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answered Aug 06 '15 at 14:52

Paani

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Good, go for SAX library. I have used Xerces C++ DOM parser a lot. Works well. Xerces also has a SAX parser which you should look into. – Paani Aug 06 '15 at 15:14
if I chose one of those mentioned in my Q for performance reasons, which one is most RAM efficient? – wolfie Aug 06 '15 at 15:57

C++ XML parsing library for large files with low RAM consumpion

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