Does a Coroutine automatically close or do I need to use coroutine.close() after?

[ExileUnbound]

I use A LOT of coroutines in my project and I’ve been noticing that the game slowly gets more and more laggy seemingly due to a memory leak. I’ve looked a lot and I cant find anything that could be causing it. Just a simple question, do I need to use coroutine.close() after every single coroutine or will it be dead after it finishes?

I always use:

coroutine.resume(coroutine.create(function()
	--Code
end))

[h_vcn (SpeedyVist_a)]

try it out and see if it fixes the lag

[earthyviking92 (Viking)]

Do coroutines eventually get terminated by Lua when not in use? Or do I have to stop them myself

There’s a discussion about this here: And according to this post, they’re garbage collected as long as they’re finished (not processing anything or yielding) and there are no references to them. Roblox have their own threading implementation apparently, and it doesn’t seem to have been made clear anywhere (by Roblox staff) exactly when or what conditions are necessary for it to be garbage collected, if at all. Seeing as there are no methods to kill a coroutine and ensure that it’s been garbag…

Please check DevForum before asking questions, there are many posts about this exact question.

[ExileUnbound]

I did check but I guess I somehow missed it, thanks.

[earthyviking92 (Viking)]

No problem! Sorry for being a bit harsh. What was the solution? I have never heard of Coroutine until this.

[h_vcn (SpeedyVist_a)]

coroutine terminates itself automatically

[ExileUnbound]

According to the post @earthyviking92 linked, it does not and it collects overtime and cause memory issues when you have a lot of them so I’ll just have to kill them every time I use one. I’ll do some testing before I draw any conclusions though.