Re: Vectors/Atomic Tuples/Garbage Collection

[John Belmonte <jvb@...>]

Dylan wrote:
> > > frog = Vector{ 10, 20, 30 } + Vector{ 20, 30, 40 } + Vector{ 30, 40, 50 }
>
> Right now, If I have 400 aliens each doing pos = pos + vec1 + vec2 + vec3, I
> get a leak of 400x3x16=20K each frame.. at 60fps that's 115k a second...6.9
> meg a minute...4 gigabytes an hour... and that's without any lua table
> structures or malloc overheads in my calculation.

That's only if those vectors are literals, and you're naively reinstancing them 
on every frame like in your frog example.  If you have any constants, it's best 
to name them and keep them around in a table.  In other words, if it hurts when 
you create stuff, don't create so much stuff.


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