I have a large (ascii) text file, about 65 MB, which TextEdit loads instantaneously in about a split second. I've tried to mimic this behavior using NSTextView to no avail. The problem isn't about unresponsiveness, because it's completely responsive during this loading of the large text file. The problem is that the NSTextView continuously loads the file over a period of about 30 seconds, not instantly like TextEdit does. Browsing through TextEdit's source, I've noticed that it removes all layout managers before the file is loaded into the NSTextStorage, and re-adds them all back afterwards (using NSEnumerator). When I tried to implement this into my own application, it showed no difference in speed. Could this really be a major factor? What other ways could I speed up a load of a large text file (several hundred MB) into an NSTextView? Or, perhaps, is there a better Cocoa control to use for large text files? _______________________________________________
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