[BangPypers] Friendfeed's web server framework open sourced

[Dhananjay Nene]

On Fri, Sep 11, 2009 at 10:32 PM, Anand Chitipothu <anandology at gmail.com>wrote:

> 2009/9/11 Dhananjay Nene <dhananjay.nene at gmail.com>:
> > I am curious about the objective .. to the best of my knowledge wsgi is
> > essentially blocking (unless my understanding is incorrect), whereas
> tornado
> > is primarily non-blocking. So would you see any specific advantages of
> > deploying a wsgi app with tornado ?
>
> yes. quite a lot. In a multi-threaded server, as your concurrency
> increases thread context-switching overhead will become very high.
> Since Tornado uses epoll + callbacks it can handle thousands of
> requests.
>
> The question I was really asking is if an application is modeled as a wsgi
application - would it be able to leverage tornado's async / epoll based
design. Another post which talks at length about the issue in the context of
mod_wsgi + wsgi apps is
http://blog.dscpl.com.au/2009/05/blocking-requests-and-nginx-version-of.html



> Performance Results for helloworld:
>
> tornado: 1414 req/sec
> tornado + web.py: 802 req/sec
> lighttpd + fastcgi + web.py: 354 req/sec
>
> Tests were run using: ab -n 1000 -c 25 'http://0.0.0.0:8080/'
>
> Anand
>
>

-- 
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blog: http://blog.dhananjaynene.com
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