libxml-ruby 0.8.0 发布， 性能提升显著

Speed Comparison libxml vs. rexml

in seconds 	libxml 	        rexml
opening 	0.003954 	0.104750
attribute_add 	0.001895 	0.011114
subelems 	0.000585 	0.004729
xpath 	        0.013269 	2.981499 

主要功能：

    * SAX
    * DOM
    * XMLReader (streaming interface)
    * XPath
    * XPointer
    * XML Schema
    * DTDs
    * XSLT (split into the libxslt-ruby bindings)

http://libxml.rubyforge.org/