Go version of https://textual.textualize.io/blog/2023/03/08/overhead-of-python-asyncio-tasks/

noop.go

package main

import (
	"fmt"
	"sync"
	"time"
)

func timeTasks(count int) time.Duration {
	nopTask := func(done func()) {
		done()
	}

	start := time.Now()
	wg := &sync.WaitGroup{}
	wg.Add(count)
	for i := 0; i < count; i++ {
		go nopTask(wg.Done)
	}
	wg.Wait()
	return time.Now().Sub(start)
}

func main() {
	for n := 100_000; n <= 1_000_000; n += 100_000 {
		createTime := timeTasks(n)
		createPerSecond := (1.0 / (float64(createTime) / float64(n))) * float64(time.Second)
		fmt.Printf("%d tasks \t %f tasks per/s\n", n, createPerSecond)
	}
}

noop.py

from asyncio import create_task, wait, run
from time import process_time as time


async def time_tasks(count=100) -> float:
    """Time creating and destroying tasks."""

    async def nop_task() -> None:
        """Do nothing task."""
        pass

    start = time()
    tasks = [create_task(nop_task()) for _ in range(count)]
    await wait(tasks)
    elapsed = time() - start
    return elapsed


for count in range(100_000, 1000_000 + 1, 100_000):
    create_time = run(time_tasks(count))
    create_per_second = 1 / (create_time / count)
    print(f"{count:,} tasks \t {create_per_second:0,.0f} tasks per/s")

out.txt

~/src/tmp$ go run noop.go
100000 tasks     4259037.197792 tasks per/s
200000 tasks     4551146.581736 tasks per/s
300000 tasks     4195348.281732 tasks per/s
400000 tasks     4469904.124356 tasks per/s
500000 tasks     4656643.335021 tasks per/s
600000 tasks     4537211.875136 tasks per/s
700000 tasks     4537840.314605 tasks per/s
800000 tasks     4411617.281635 tasks per/s
900000 tasks     4591128.084704 tasks per/s
1000000 tasks    4572292.949041 tasks per/s

~/src/tmp$ python3 noop.py
100,000 tasks    180,894 tasks per/s
200,000 tasks    175,868 tasks per/s
300,000 tasks    179,956 tasks per/s
400,000 tasks    183,712 tasks per/s
500,000 tasks    173,246 tasks per/s
600,000 tasks    172,198 tasks per/s
700,000 tasks    182,499 tasks per/s
800,000 tasks    174,300 tasks per/s
900,000 tasks    165,227 tasks per/s
1,000,000 tasks          165,703 tasks per/s