Generators will help a tiny bit but certainly not nearly as much as something like coroutines with separate stacks. I know the node-fiber guy(s) had some issues

Generators will help a tiny bit but certainly not nearly as much as something like coroutines with separate stacks. I know the node-fiber guy(s) had some issues with v8's internal stack usage so it doesn't seem like a near-future possibility to really have light-weight coros in node :(