I've followed a lot of suggestions for optimizing graphics performance, and my projects currently sails along quickly and lightly in terms of rendering.

I do, however, have some overhead on loading that I'd like to minimize if possible. It comes down to reading a text file of objects and coordinates (this approach is questionable, but let's stick with it as a given).

I'm reading in a file that contains a subset of lines I'm interested in ("MARK" being the intial characters). Then, only a subset of these lines, I want to store coordinate information for - I check for the existence of the line type using a single character from the line string in a hash I populate at the start of the code.

I'm using builtin arrays for everything below.

I have the following:

if (textAsset == null) return;
reader = new StringReader(textAsset.text);
line = reader.ReadLine();

while (line != null)
{

    if(line.Substring(0,4) == "MARK")
    {

        var identifier = Regex.Replace(line.Substring(13,4),"( )+","");

        if (lineType[identifier])
        {
            i++;

            totalCounts++;


    vec[i] = Vector3(float.Parse(line.Substring(30,8)),float.Parse(line.Substring(38,8)),float.Parse(line.Substring(46,8)));
    vecSum += Vector3(float.Parse(line.Substring(30,8)),float.Parse(line.Substring(38,8)),float.Parse(line.Substring(46,8)));

            print(totalCounts);
            print(DateTime.Now);

        }
    }
}

I'm clocking about 200 lines read per second. I'm wondering if anyone sees anything in the above code that could be streamlined for a time gain?

Cheers, and thanks for reading this far!