download-benchmark.js

const axios = require('axios')
const fs =  require('fs')
const jobs = []
for (let index = 0; index < 40; index++) {
    jobs.push('https://static.parastorage.com/services/promote-seo/1.2335.0/business-manager-component.bundle.min.js')
}

console.log('running ',+jobs.length, ' jobs')
console.time('download and write')
Promise.all(jobs.map((url, i) => axios.get(url).then(({data}) => {
  return fs.promises.writeFile(__dirname + `/temp/${i}.js`,data)
}))).then(() =>
  console.timeEnd('download and write')
)