Why is there sleep(0.001) in default love.run()?

[fuxoft]

Why is there the following line in the default love.run() function?

Code: Select all

if love.timer then love.timer.sleep(0.001) end

Is it just a failsafe to prevent the 100% CPU load when someone pumps new frames without vsync, as fast as possible? Or does it have more complex purpose?

[Lafolie]

viewtopic.php?f=4&t=9438&hilit=Busywait

[Boolsheet]

Is it just a failsafe to prevent the 100% CPU load when someone pumps new frames without vsync, as fast as possible?

Yes, that's it. A very simple way to prevent LÖVE from wasting all the CPU cycles and it's in love.run so lovers can easily remove it, if they want to.