Which widget to use for fast line output in Qt?

Question

Qt

Hello, I need to display very fast (every 1-10 milliseconds) lines on the screen. At first I used QPlainTextEdit for this, but it didn’t really suit such a task. the number of displayed lines is fixed (1000) and it is bad to remove the first lines with it. Right now I'm using QListWidget, but it's very slow for such a task. I thought about making my own model for QListView, based on a circular buffer, but when displaying to a widget, I still have to deal with deleting / inserting elements (i.e. drive a lot of memory). Maybe someone faced with such a problem, advise the implementation option.

Answer 1

QListView will most likely be much faster, but it makes no sense to make the update rate faster than 33ms, Alexander Ananiev correctly noted this.