Are Continuations Expensive?

[Richard In Public <ed...@blueyonder.co.uk>]

Hi

I'm about to dive into Continutations and I'm wondering about their
scalability.  I don't know much about the implementation, but isn't storing
the StackTrace expensive?

Richard Hoberman


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Re: Are Continuations Expensive?

[Upayavira <uv...@upaya.co.uk>]

> I'm about to dive into Continutations and I'm wondering about their
> scalability.  I don't know much about the implementation, but isn't
> storing the StackTrace expensive?

First a disclaimer: I've never used continuations.

>From discussions on cocoon-dev, I understand that only the part of a stack that is 
different from others is stored, not the whole stack each time. Also, variables are 
shared between continuations, again reducing memory usage.

I'm not saying that this makes them inexpensive - just that memory usage does 
appear to have been thought about.

Upayavira

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