[Twisted-Python] Stackless.py and Twisted

Daniel Griffin dgriff1 at gmail.com
Wed Jun 9 15:42:32 EDT 2010

I dont know if twisted can really be counted as a scheduler. Its purpose is
more to do with nonblocking IO. To improve IO performance in stackless you
would need to add multiplexing to its scheduler(if it doesnt already have
it). http://eventlet.net/ seems to to this.


On Wed, Jun 9, 2010 at 9:22 AM, Andrew Francis <andrewfr_ice at yahoo.com>wrote:

> Hi Folks:
> My talk "Prototyping Go's Select for Stackless with Stackless.py" recently
> got accepted to EuroPython. In the talk, I modified stackless.py to support
> the Go language's Select statement. I support Select as a method rather than
> a Python language feature. Implementing Select turns out to be relatively.
> However my original interest in stackless.py  was about subclassing the
> Twisted Reactor and making it stackless's scheduler. As opposed to running
> Twisted in a separate tasklet so an application does not deadlock under
> certain edge cases. In part I wanted to experiment with changing the
> stackless scheduler in such a way as to improve the performance of IO driven
> applications.  I am wondering if I would see a speed up if compiled into
> pypy-c (unfortunately right now I don't believe the JIT and Stackless are
> integrated)? Is this too wild an idea?
> Cheers,
> Andrew
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