How does the Garbage Collector work in Go, how is it structured?

Garbage Collector (GC) in Go is an automatic garbage collector that frees memory occupied by unused objects.

Go uses a trigger-based, concurrent, mark-and-sweep GC algorithm. The main stages:

1. Mark: The GC traverses all roots (variables on the stack, global variables, etc.) and marks all reachable objects.
2. Sweep: All objects that were not marked are considered garbage and are freed.

Features:

• GC runs concurrently with the program execution, minimizing pauses.
• Uses triggers to initiate collection, for example, when allocated memory reaches a certain threshold.
• Optimized for low latency and high performance.

This is roughly how GC in Go works, allowing developers not to worry about manual memory management, reducing the likelihood of leaks and errors.