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by blahgeek 1297 days ago
Regarding terminal emulators, I believe that by "fast" people usually mean "low latency" instead of "high throughput". Apparently alacritty has a good performance on thoughtput according its benchmark with vtebench, but it does not provide good latency performance according to [0].

[0] https://danluu.com/term-latency/

3 comments

I'm not sure how current that article is - in that article they state that the alacritty team had created an issue relating to latency[0] which was closed in favour of a different issue[1] which is still open.

The newer issue[1] appears to state that latency isn't an issue on Wayland as it already has frame scheduling support, but their proposed fix targets X11, MacOS and Windows.

I was quite surprised as I hadn't noticed any latency using alacritty, but I've been on Wayland for some time so that might be the reason.

[0] https://github.com/alacritty/alacritty/issues/673

[1] https://github.com/alacritty/alacritty/issues/3972

I agree, 34ms is unacceptable latency. Let's all use eshell in Emacs instead.
That reference is pretty old at this point, especially considering that some of those terminal emulators were very young projects still. I would search for new results before making a statement about performance.