Ben Bangert wrote: > On Aug 14, 2008, at 6:23 PM, Cliff Wells wrote: > >> Possible replacement for Paste#http: >> >> http://pypi.python.org/pypi/Spawning/0.7 >> >> A speed comparison of Django+mod_wsgi vs Spawning that lacks enough info >> to be labeled definitive, but interesting nonetheless: >> >> http://www.eflorenzano.com/blog/post/spawning-django/ >> >> My own tests have been limited to changing a fresh Pylons project's >> test.ini to use egg:Spawning rather than egg:Paste#http and verifying >> that Pylons runs, so YMMV ;-) > > I've gotten similar results to the benchmark there for a Pylons app. > Though there's a few things Paste#http does that neither > PasteScript#cherrypy (faster than Paste#http), nor spawning do. Might > help to illustrate the differences: > > Paste#http > - Uses thread-pool > - Can launch additional threads in the event threads are all taken > - Can kill 'stuck' threads to avoid server stall > - Can recycle threads after configurable amount of requests (helps with > possible memory leaks)
At least potentially Spawning should be able to do all of these, but using subprocesses instead (probably with greater reliability). mod_wsgi already does this, in effect, using the Apache process management. I believe, but I'm not sure, that Spawning reads the entire input (asynchronously) before calling the WSGI application, which would also allow it to support many more incoming uploads. Generally it has at least the potential to more gracefully handle lots of nasty overload cases. Also, if you don't use subprocesses or threads with it, you can run your WSGI application asynchronously. This won't work if you use databases or even files, but for some applications it might provide interesting possibilities -- specifically lots of concurrent requests, or things like Comet-style applications that push events. -- Ian Bicking : [EMAIL PROTECTED] : http://blog.ianbicking.org --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "pylons-discuss" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
