gistfile1.js

var Promise = require('bluebird');
var fs = require('fs');
var util = require('util');
var memwatch = require('/usr/lib/node_modules/memwatch');
var prReadFile = Promise.promisify(fs.readFile);
var _ = require('lodash');

console.log(process.pid);
show('start memory:');

fs.readFile('inca-wholesale-8uuCF0.zip', function(buffer) {
	show('first memory:');

	prReadFile('inca-wholesale-kpwmUU.zip').then(function(buffer) {
		show('second memory:');
	});
	// fs.readFile('inca-wholesale-kpwmUU.zip', function(buffer) {
	// 	show('second memory:');
	// });
});

setInterval(function() {
	console.time('collect');
	global.gc();
	console.timeEnd('collect');
	show('now:');
}, 5000);


function show(msg) {
	console.log(msg, process.memoryUsage().rss / 1024 / 1024);
};