[boost] Re: Asynchronous I/O

From: Don G (dongryphon_at_[hidden])
Date: 2005-03-23 23:18:48

Hi Patrick,

Thanks for the links. I looked briefly at the Twisted reference, but
since I do not speak python, it was a hard going. :) I will put more
effort into it soon.

Best,
Don

--- Patrick Mézard <pmezard_at_[hidden]> wrote:
> You should take a look at the python Twisted framework 
> <http://twistedmatrix.com/>. There are performance issues in python
> with 
> threads because of the Global Interpreter Lock (GIL). The framework
> is a 
> workaround, performing every task in an asynchronous way from a
> single 
> thread. The design of the Defer class is interesting and is the key
> of 
> asychronous tasks control flows 
>
(<http://twistedmatrix.com/projects/core/documentation/howto/defer.html>).
> 
> By the way, there were and will be lengthy discussions about which 
> approach is the "best" to build scalable concurrent programs. I
> think 
> that multithreading and event-driven programming were proven to be 
> equivalent from a theorical point of view, but there real
> differences 
> in implementation. You could read this one and many items from its 
> bibliography too:
> 
> <http://capriccio.cs.berkeley.edu/pubs/threads-hotos-2003.pdf> 
> (The Capriccio project was really interesting too, on the paper. I
> do 
> not know where they are now).
> 
> Patrick Mézard

                
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