[1]: https://github.com/Obvious/kew
results for 20000 parallel executions, 1 ms per I/O op
file time(ms) memory(MB) promiseishBluebird.js 1076 76.08 async.js 2634 113.79 promiseishKew.js 2654 123.50 promiseishQ.js 56508 804.21
[1]: https://github.com/spion/async-compare
[1]: https://github.com/Obvious/kew