Hi Allain I have the same stackless version, so it is possibly related to libevent. I tested and developed against libevent 1.3e (this is current version on stock ubuntu) I will have a look and see if I can reproduce/fix this....
On Mon, Jan 19, 2009 at 7:48 PM, Alain Poirier <[email protected]> wrote: > Hi, > > Running `examples/http.py`, my CPU jumps to 100%, even without any request > sent (Linux, Python stackless 2.5.2, libevent 1.4.9). > > Any idea ? > > On Monday 12 January 2009 16:22:37 Henk Punt wrote: >> Hi, >> >> I would like to announce the availablility of the 'Concurrence >> Framework'. (http://concurrence.googlecode.com) >> >> Basically it is a library build on top of Stackless that enables the >> easy creation of high performance network servers >> (http servers, chat servers, comet servers etc etc). >> >> It is similar in scope to the Twisted framework, but it uses a >> Lightweight-processes-with-message-passing approach to concurrency as >> opposed to Twisteds event-driven model. >> >> I have created this framework out of frustration with Twisteds model. >> After working for some years with Twisted it has become apparent to me >> that the event-driven model for IO/socket programming although very >> performant, quite easily leads to difficult to maintain program >> code... >> >> Instead I would prefer to program in a 'blocking' style like you would >> traditionally do with threads. At the same time I still would like to >> retain >> the performance and lack of threading issues of event-driven IO. >> >> This is what the Concurrence Framework provides... (trough Stackless >> and libevent) >> >> Most notably it already includes: >> - a Socket API, >> - a DBAPI 2.0 compatible implementation of a MySQL Driver >> - an implementation of a HTTP1.1/WSGI compliant webserver. >> >> Some components are implemented in Pyrex for speed (low level >> interface to libevent, IO buffer interface, low-level MySQL stuff). >> >> The code is currently quite usable, but some interfaces might still >> change as I gather feedback from the community. >> >> In the following weeks I will try to finalize the core documentation >> and I will create a proper website to host it. >> >> In the meantime, anyone interested can checkout the code from coogle code: >> >> svn checkout http://concurrence.googlecode.com/svn/trunk/ concurrence >> >> from there please follow the instructions in INSTALL.TXT (currently >> Linux/MacOSX only). >> >> Documentation can be found in doc/_build/html/index.html, but this is >> a work in progress... >> Examples used in the documentation can also be found in the examples >> directory. The unittests in the test directory could also provide some >> guidance on how to use the framework. >> >> Issues/feedback can be mailed to me or you can add an issue on >> http://code.google.com/p/concurrence/issues/list. >> >> Enjoy, >> >> Henk Punt > > > _______________________________________________ Stackless mailing list [email protected] http://www.stackless.com/mailman/listinfo/stackless
