Hello, i have a text-file with lots of lines. The file is imported to LV and need to be sorted by first character. It works fine but gets very slow if too much lines. If 40.000 lines then it takes 0.2s. If 400.000 lines then the time rises with factor 100 to 25s. if 1.000.000 lines then the time is 222sec (~4min) Attached the code that sorts a text-array. The number of lines can be set with the loop-counter (Loop-counter *4 = NumberOfLines) The elapsed time is displayed. How can i speed this up? (Or make the elapsed time more linear to the number of lines) Thanks

You can try something like this. If you process an array line by line you always end up taking long time. Sorry I have some problem attaching the VI.

LabVIEW

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