GC

GC is the garbage collector of the script’s memory: the strings, arrays, maps and instances it makes. It collects on its own, and before memory would cross the project’s vm_memory_limit (see Configuration), so a script rarely needs it. The geometry kernel’s meshes aren’t script memory.

collect

GC.collect

Runs a collection now, freeing what the script no longer holds. Returns: nil.

bytes_allocated

GC.bytes_allocated

How many bytes of script memory the collector holds now. Returns: Number.

before = GC.bytes_allocated
scratch = (0...10000).map { |i| [i, i * 2] }
scratch = nil
GC.collect
puts GC.bytes_allocated <= before + 100_000   # true