Understanding and Optimizing Generational Garbage Collection in Haskell

Question

When a program initializes, the mutator allocates memory space for new small objects in the nursery. The nursery serves as a buffer to maintain recently created objects. If these objects remain alive during the garbage collection cycle, they may undergo aging and be promoted to Generation 0 for small objects or Generation 1 for large objects. So, the nursery, Gen 0, and Gen 1 are pipelining with each other and interacting accordingly. I want to explain my understanding as follow:

1. Nursery:

   • Newly allocated objects start in the nursery, designed for short-lived objects.

2. Garbage Collection Cycle:

   • The garbage collector examines nursery objects during a cycle.
   • Surviving objects in the nursery may age within the same generation (e.g., Gen 0).

3. Generational Promotion:

   • Objects surviving multiple cycles may be promoted to the next older generation (e.g., from Gen 0 to Gen 1).

4. Interaction and Pipeline:

   • Objects move through a pipeline-like structure: nursery to Gen 0, and potentially to Gen 1.
   • The nursery buffers short-lived objects, Gen 0 represents the initial stage for object promotion, and Gen 1 (and further generations) accommodates objects with longer lifetimes.

Is my understanding correct?

I expect the some helpful explanations.