Honestly, you can't count on promises from implementors. Best to make
something kick-ass that pushes generator performance, gets adoption, and
engines feel the heat. Until then, profile twice, cut once -- in all
cases I've seen, the generator perf hardship was not on critical path.
/be
Jason Kuhrt wrote:
Can anyone point me to good literature on projections or thoughts on
future performance of Generators in JavaScript? I would like to
develop heuristics and intuition about their use knowing that anything
that is absolutely critical should of course be benchmarked by me, but
also wanting enough knowledge to operate confidently in my choice of
tool and techniques. For context I am concerned about the full stack
so cannot focus on a single engine (V8 etc.).
Say for example that I wanted to write in a functional lazy-evaluation
style; I want a sense within the order-of-magnitude at least for the
general trade-offs I am making.
I don’t feel like justifying why I’m curious about this (as I seemed
to have had to do on the Node IRC channel, sigh). So please just
answer if you have constructive information to add. I understand this
space is moving fast with patches that are increasing performance by
orders of magnitude (e.g.
https://code.google.com/p/v8/issues/detail?id=3928) so I’m more
concerned with the longer term, 12-24+ months, how close will
Generators get to regular functions in perf, etc.
Thanks so much,
Jason
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