私の Go プログラムは実際に何個のプロセッサを使用しますか?

package main

import (
    "fmt"
    "runtime"
    "sync"
)

var wg sync.WaitGroup

func doTasks() {
    fmt.Println(" Doing task ")
    for ji := 1; ji < 100000000; ji++ {
        for io := 1; io < 10; io++ {
            // Some computations
        }
    }
    runtime.Gosched()

    wg.Done()
}

func main() {
    wg.Add(1)
    runtime.GOMAXPROCS(1) // or 2 or 4
    go doTasks()
    doTasks()
    wg.Wait()

    fmt.Println("Maximum processors:", runtime.GOMAXPROCS(0))
    fmt.Println("Available logical processors:", runtime.NumCPU())
    fmt.Println("Maximum parallelism:", runtime.MaxParallelism())
}