current/benchmark/child_process/spawn-echo.js
'use strict';
const common = require('../common.js');
const bench = common.createBenchmark(main, {
n: [1000]
});
const spawn = require('child_process').spawn;
function main({ n }) {
bench.start();
go(n, n);
}
function go(n, left) {
if (--left === 0)
return bench.end(n);
const child = spawn('echo', ['hello']);
child.on('exit', (code) => {
if (code)
process.exit(code);
else
go(n, left);
});
}