[k6][Loadtest] How to use multiple executors

K6 provides executors

Executors

How to use multiple executors to scenarios

make a test script.js

import http from 'k6/http';
import { sleep } from 'k6';

export let options = {
    scenarios: {
        foo: {
            executor: 'constant-vus',
            vus: 100,
            duration: '10m',
            exec: 'firstScenario'
        },
        bar: {
            executor: 'constant-arrival-rate',
            rate: 10,
            timeUnit: '1s',
            duration: '10m',
            preAllocatedVUs: 25,
            exec: 'secondScenario'
        },
    },
};

export function firstScenario() { 
	http.get('https://test.k6.io');
	sleep(1);
}
export function secondScenario() {
	http.get('https://test.k6.io');
	sleep(1);
}

Run test script

$ k6 run script.js

running (01m32.5s), 1025/1025 VUs, 323 complete and 0 interrupted iterations
firstScenario      [--------------------------------------] 1/25 VUs  01m32.5s/10m0s  10 iters/s
secondScenario     [--------------------------------------] 1000 VUs  01m32.5s/10m0s