[Stackless] Google Summer of Code - PSF / Time is Short

Andrew Francis andrewfr_ice at yahoo.com
Thu Mar 22 20:05:32 CET 2007

Hello Richard and Colleagues:

> Given my own non-use of Twisted and the level of
>confusion that went on, on the list, in terms of how 
>to get Stackless and Twisted to best work together,
how >the use of Twisted will affect people wanting to
use the >monkeypatched facilities in the same manner..
well, I >don't know the repercusions there.

Two points. 


Although I would use a Stackless Python modified to
use Twisted, I am increasingly of the opinion that it
unnecessary to build Twisted support into Stackless.
One can get much mileage from out-of-the-box Twisted. 

I would sooner contribute towards building a Stackless
Python aware debugger....

For the near future, I believe it more important to
understand the issues about integrating Twisted with
Stackless. For instant, based on Carlos's tests, I
want to understand how adjusting the GIL improves
performance. My own tests have shown that using a
deque or uthread Queue provides modest performance
boosts (the asynchrony helps). And like Carlos, I want
to know why the threaded solution does not work if it
is driven too fast after repeated invocations, that is
running the executable two or three types in

I will probably post again in the Twisted newsgroup.


As for the different approaches. I believe a single
threaded approach can handle 80% of the typical
programmer's problems. I worked on a threaded approach
because I have more esoteric needs (I have outlined
those needs in previous posts). In turn, I had written
tests where approaches using taskloop would break.
Perhaps I was doing something wrong, but I have
decided not to pursue that avenue. In turn, the
threaded solution works, albeit with the provisos that
were stated above.
Again, I think if we share information and not operate
in silos, stackless modules, monkeypatching, and
Twisted approaches can all be improved.


Now that's room service!  Choose from over 150,000 hotels
in 45,000 destinations on Yahoo! Travel to find your fit.

Stackless mailing list
Stackless at stackless.com

More information about the Stackless mailing list