How does Go's garbage collection work?
Go is a garbage-collected language, which means that the Go runtime automatically manages the allocation and deallocation of memory. Go's garbage collector uses a tri-color mark-and-sweep algorithm with a concurrent sweep.

During the mark phase, the garbage collector traverses the object graph, starting from the roots, and marks all reachable objects as live. This phase runs concurrently with the application, meaning that the garbage collector can run in parallel with the application threads.

During the sweep phase, the garbage collector deallocates all objects that are not marked as live. This phase is also concurrent, and it runs in parallel with the application threads.

To minimize the impact of garbage collection on the application's performance, Go's garbage collector tries to keep the pause time short by doing the garbage collection work incrementally. Instead of stopping the entire application to perform a garbage collection cycle, the garbage collector performs small, incremental garbage collections in the background as the application runs.

Go's garbage collector is designed to be efficient and low-overhead, and it does not require any tuning or configuration by the developer. The garbage collector automatically adjusts its parameters based on the application's memory usage patterns.
Is there more than one root in the object graph?