I am needing to work with some rather large tab separated files (up to 2GB or more). I can read each line in and then split it or use QString::section. But which would be more performant? Given the differences in usage for the two is not a drop in replacement, I'd like to get some idea of which would be better for million+ line counts and the docs are silent on it.

So, has anyone some experiences between the two for comparison? I'll likely be needing to put the data into a model for display, searching, and sorting, etc. later on. I know I won' tbe needing all of the fields (19).