Räägi mulle, kuidas töötab goroutine'i planeerija Go-s (GMP).

The goroutine scheduler in Go is based on the GMP model (Goroutine, Machine, Processor).

• G (Goroutine) — a lightweight thread that runs user code.
• M (Machine) — an operating system thread that executes goroutines.
• P (Processor) — a logical processor that connects M and G, managing execution.

How the scheduler works:

1. Each P has a queue of ready-to-run goroutines (G).
2. M attaches to P, takes G from its queue, and executes them.
3. If a goroutine blocks (e.g., on I/O), M is released and can take another P with ready goroutines.
4. The scheduler balances the load among P to efficiently utilize system threads.

This allows Go to efficiently scale a large number of goroutines on a limited number of system threads, providing high concurrency with minimal overhead.

Example of creating a goroutine:

func main() {
    go func() {
        fmt.Println("Hello from goroutine")
    }()
    time.Sleep(time.Second) // Wait for the goroutine to run
}