a.js

var v8 = require('strong-cpu-profiler')
  , fs = require('fs')
v8.startProfiling('a')

console.log('a')
var profile = v8.stopProfiling('a')

fs.writeFileSync('a.nom', JSON.stringify({
		title: profile.title,
			uid: profile.uid,
		typeId: 'CPU',
		head: profile.getTopDownRoot(),
		bottomUpHead: profile.getBottomUpRoot()
	}))