On: Bluebird – A full-featured, fast promises library ...

[andreypopp]

Kew[1] is still faster, working on a pull request with updated benchmarks which include Kew.

[1]: https://github.com/Obvious/kew

[spion → andreypopp]

Here are some results from my benchmark [1]

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

note: async.js is basically waterfall from https://github.com/caolan/async

[1]: https://github.com/spion/async-compare

[andreypopp → andreypopp]

Ok, sometimes kew is faster, sometimes bluebird, submitted a PR