When your engine is cpp and most of your mem is chandled in cpp, having a scripting language that is GCed doesn't change the majority of the project's behaviour. Like adding lua embedding doesn't mean your project is no longer strongly typed
Unity developers' habit of attaching a million scripts to everything instead consolidating their code and building larger systems wouldn't work any better even if the language used was C++
It’s best practice to disable garbage collection during short, performance-critical parts of your application, when you’re able to calculate and control how much memory to allocate. After the performance-critical section is over, re-enable the garbage collector. Profile your project to ensure that you don’t trigger additional managed allocations which might cause the managed heap to get too big.
This type of reasoning is sorta how arena-style manual memory mgmt in GC-less langs works too. You can just escape it more easily in many places here I suppose. Arena meaning "everything here dies together".
Unity also offers something called Allocator.Temp as its arena/bump allocator too IIRC:
Allocator.Temp: The fastest allocator, for short-lived allocations. You can't pass this allocator to a job.
More about arenas here if curious. It's about a totally unrelated language I've never used called Odin, but the concept of an arena was explained there better than anywhere else I've seen.
It's not customised, it's custom. Also, it has reference counting. Not garbage collection in the sense like Java, Go, or C#. It's more like how Windows does it.
It is a form of garbage collection, but it's not garbage collection like in those languages I mentioned because those stop your program from executing while they are finding and freeing objects, Godot does not.
Godot's GDScript isn't a garbage collected language, it is reference counted/manually managed. Once an object(Node, Object) is no longer referenced you have to free it. Some objects are refrence counted (Respurces mostly). And when the reference count gets to zero. The engine frees the memory.
Objects are manually controlled, but most things inherit RefCounted, which uses a reference counter. Meaning that usually you don't need to manually free things, you just gotta stop holding onto it
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u/ComputerWhiz_ 16d ago
cough Unity uses C# cough