deps/node/benchmark/child_process/spawn-echo.js


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'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);
  });
}