Question by SolarianZ · Jun 14, 2017 at 01:13 AM · file xml big slowly

Why XmlTextReader become so slowly in Unity?

I need to parse a big XML file (≈100MB, 400000rows) then put the data in a List.

First I try to parse the XML file in a C# console application, it taked about 2s to finish the job.
Then I copy the code into Unity, and it taked about 17s to finish the job.

Anybody know why it become so slowly? And how to make it faster? Thanks!

Code：

 // Used for storing data
 stateList = new List<BallisticState>();
 XmlTextReader reader = new XmlTextReader(filepath);
 while (reader.Read())
 {
     if (reader.NodeType == XmlNodeType.Element)
     {
         if (reader.Name == "row")
         {
             string value = reader.GetAttribute("value").TrimStart();
             
             BallisticState state = new BallisticState();
             // this method converts string to float
             SetBallisticState(state, value);
             
             stateList.Add(state);
         }
     }
 }

Add comment · Show 2