The best result of 53MB/sec for the Labview XML parser I created is shown in the first link. The source code is shown in the third. It contains a detailed discussion.

• Reentrant Example (Best Result) for Parse XML.c
• Block Diagram for Reentrant Example
• Source Code LabXML.c
• Example Parser Mode 0
• Example Parser Mode 1
• Example Parser Mode 2
• Block Diagram of Example Parser
• Block Diagram for Parse XML -- Initialize
• Block Diagram for Paarse XML -- Parse
• Source Code Including Linux Executable (Requires Labview 7 runtime)