Simple harness to exercise a memory leak in Node. Copied from https://github.com/alexeypetrushin/synchronize/pull/32, credit @d3m3vilurr.

node_memory_harness.js

var immediately = function(cb) {
  sync.fiber(function() {
    setImmediate(sync.defer());
    sync.await();
  }, cb);
};

function test(m, cb) {
  if (m-- === 0) return cb();
  immediately(function(err) {
    if (err) return cb(err);
    if (m % 1000 === 0) {
      console.log(m + ": " + JSON.stringify(process.memoryUsage()));
    }
    test(m, cb);
  });
}

test(100000000, function(err) {
  if (err) throw err;
  console.log("done");
});