If you play my project “Clone Pong,” if you're good enough at it, you can seriously lag Scratch due to all the clones. I checked Task Manager and there were no large spikes in memory or CPU usage.
Browser: Chrome
Project: Link
Edit: New discovery: The lag only happens when a clone is the one reproducing.

That's because it takes up more memory, and Flash is only allocated a certain amount. If it starts to run out, then it will slow down.

jvvg
That's because it takes up more memory, and Flash is only allocated a certain amount. If it starts to run out, then it will slow down.

Is there a way to give Flash more RAM? I have 8 gb, so I should be fine giving it more.

bobbysq

jvvg
That's because it takes up more memory, and Flash is only allocated a certain amount. If it starts to run out, then it will slow down.

Is there a way to give Flash more RAM? I have 8 gb, so I should be fine giving it more.

Not that I know of.

New discovery: The lag only happens when a clone is the one reproducing.

bobbysq
Is there a way to give Flash more RAM? I have 8 gb, so I should be fine giving it more.

From Stack Overflow:

fenomas
As long as your application keeps using more memory, desktop Flash will keep requesting it from the OS, until the OS runs out of memory or something crashes. Of course you the developer should limit your memory usage as appropriate, but Flash won't force you to do so.

Though if it's only clone scripts causing the problem, it may be the program's fault.

Clones don't take very much memory, so more memory probably wouldn't make it faster. I suspect either (a) the graphics or (b) sound playing. You could try removing the “play sound” block to see if that speeds things up. A good trick to speeding up graphics is to set the ball's rotation style to “don't rotate”, which you can set in the sprite info. This saves Flash from having to rotate the sprite as it changes direction. (But perhaps it's already doing that.)

Nice idea to combine Pong and clone. It gets harder really fast!

johnm
Clones don't take very much memory, so more memory probably wouldn't make it faster. I suspect either (a) the graphics or (b) sound playing. You could try removing the “play sound” block to see if that speeds things up. A good trick to speeding up graphics is to set the ball's rotation style to “don't rotate”, which you can set in the sprite info. This saves Flash from having to rotate the sprite as it changes direction. (But perhaps it's already doing that.)

Nice idea to combine Pong and clone. It gets harder really fast!

I noticed that the ball is already on “don't rotate.” Does it reset on clones?