A little module that can reveal if memory usage jumps after requiring modules

heap-require.js

// usage:
//     require = require("./heap-require")(require);
// then use require as normal

module.exports = function (_require) {
    var newRequire = function (id) {
        var before = process.memoryUsage().heapUsed / 1024 / 1024;
        var exports = _require(id);
        var after = process.memoryUsage().heapUsed / 1024 / 1024;

        var change = Math.round((after - before) * 100) / 100;
        if (change > 0) {
            change = "+" + change;
        }
        console.log(change, "requiring", id, "before:", before, "after:", after);

        return exports;
    };

    for (var p in _require) {
        newRequire[p] = _require[p];
    }

    return newRequire;
};