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توضیحات

coroutine library

ویژگی	مقدار
سیستم عامل	-
نام فایل	corun-0.1.0
نام	corun
نسخه کتابخانه	0.1.0
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Rodney Gomes
ایمیل نویسنده	rodneygomes@gmail.com
آدرس صفحه اصلی	UNKNOWN
آدرس اینترنتی	https://pypi.org/project/corun/
مجوز	Apache 2.0 License

corun ===== Acknowledgements ---------------- I'd like to acknowledge that without the work previously done by **David Beazey** I probably wouldn't have such a great starting point for writing this module. I started writing corun after going through his presentation found [here](http://www.dabeaz.com/coroutines/). From which I drew quite a bit of the scheduler work done in **corun**. There were a few things I decided to drop yield trampolining from the **corun** module because I found that it complicated the code more (resulting in some performance issues that I couldn't easily solve) as well as it didn't give the end module user the full control of when his/her coroutine wanted to give time for the scheduler to schedule in more workers. I also decided to add a few new notions which included the ability to put coroutines to sleep for sometime and came up with a solution similar to the solution presented by David on how to make a task wait for another task to terminate. Introduction ------------ **corun** is a coroutine based Python library that uses only built-in Python features to provide a low-level event driven programming model to be used when you can't scale a very common thread based approach to 10K+ concurrently running threads. Its also the case that the tasks being done by those threads is primarily I/O bound and not CPU bound as at that point the coroutine approach may not perform as well as a regular threaded model. There are a few other "similar" libraries out there such as gevent and cogen, but I found that gevent tried to hide the exact points at which your coroutine was "yielding" to the scheduler. Cogen was closer to what I wanted but I didn't see why it needed you to decorate your coroutines with the **@coro** decorator and their google code project hasn't been touched in 2 years and even pip or easy_install couldn't find some dependencies when trying to install. So I'm assuming that the code is unmaintained and an abadoned project at this point. Requirements ------------ * Python 2.5+ Installation ------------ pip install -e git+git://github.com/rlgomes/corun.git#egg=corun Usage Examples -------------- For examples have a look at the tests folder. I will add more samples to this README in the near future which will describe different ways of using corun. Performance Stats ----------------- You can easily run the built-in tests by issuing: python setup.py test on a freshly checked out copy and you'll get results similar to the following: test_corun (tests.concurrent_task_test.ConcurrenTaskTest) ... corun time: 0.269580 10000 ok test_gevent (tests.concurrent_task_test.ConcurrenTaskTest) ... gevent time: 0.497005 10000 ok test_thread (tests.concurrent_task_test.ConcurrenTaskTest) ... thread time: 1.338474 10000 ok test_corun (tests.io_task_test.IOTaskTest) ... corun time: 0.289584 100 ok test_gevent (tests.io_task_test.IOTaskTest) ... gevent time: 3.748089 100 ok test_thread (tests.io_task_test.IOTaskTest) ... thread time: 1.230650 100 ok Starting tests in 3 seconds... concurrent connection limit is 2048 listening at localhost:9999 test_1_thread (tests.urlfetch_test.URLFetchTest) ... thread time: 4.171722 1000 ok test_2_corun (tests.urlfetch_test.URLFetchTest) ... corun time: 0.450275 1000 ok test_3_gevent (tests.urlfetch_test.URLFetchTest) ... gevent time: 0.489684 1000 ok ---------------------------------------------------------------------- Ran 9 tests in 17.363s OK The results of my tests are pretty impressive but I realize this library still needs a few features and may certainly have situations where it does not outperform the other two approaches.

نحوه نصب

نصب پکیج whl corun-0.1.0:

pip install corun-0.1.0.whl

نصب پکیج tar.gz corun-0.1.0:

pip install corun-0.1.0.tar.gz