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Comment by onsclom

11 hours ago

Ooh interesting. What is your machine and browser? On chrome with my m1 macbook it takes less than 1ms to compute and render each frame, but I am noticing some things I can optimize from the performance flame graph! I will say, I find chrome to be way more efficient for ctx2d things than firefox or safari.

Chrome on Linux suffers from this too. The issues are standard for all naive immediate GUI libs:

- constant repainting (while literally nothing changes) -> constant CPU load

- some libs can skip repaints but have no concept of damage area

- bad handling of high-dpi (which also can change dynamically)

- constant repainting behaves even worse on laptops which announce 180 Hz refresh interval, which means that it drains the battery 3 times faster than 60 Hz