C:\test>xmllib junk.xml
Parsing took 0.290895 seconds
Iteration took 171.657306 seconds
Total took 171.959000 seconds
Check mem:63.6MB

C:\test>xmlsimple junk.xml
Parsing took 38.202000 seconds
Iteration took 0.059186 seconds
Total took 38.262577 seconds
Check mem:142MB