[FASTCGI] Has anyone used multiplexed connections with FastCGI?

Jon Ribbens jon+fastcgi-developers at unequivocal.co.uk
Sun Jan 31 22:40:36 EST 2010


On Mon, Feb 01, 2010 at 02:10:12AM +0000, Darren Garvey wrote:
>    <shameless_plug>
>    I'm developing a (c++) FastCGI library that's "supposed" to support
>    multiplexed connections, but I've never been able to test this aspect of
>    it (ie. multiplexing) so can't claim to support it either completely or
>    reliably. That said, I am currently rewriting the docs for this library
>    and hope to wrap a release shortly, free-time permitting.
>    </shameless_plug>
> 
>      (Started writing a FastCGI application, putting in support for
>      multiplexed connections, and wondering if this might be a bad idea.)
> 
>    Supporting multiplexing caused me some headaches with the unbuffered
>    approach I took. I still wonder how much efficiency can be gained from
>    supporting multiplexed connections and if it is worth it in the end. The
>    Jury's out until there are some performance numbers against a
>    multiplexing-enabled production server. I haven't found that supporting
>    multiplexing causes any noticeable runtime overhead, but does add some
>    complexity to the implementation because of multithreaded considerations.
>    If you'd like to share your ideas / implementation, let me know (offline
>    if you prefer).

My Python FastCGI client library at http://jonpy.sf.net/ supports
multiplexing, but like you say it's never been tested really because
I don't know of any server side libraries that use it. It was easy to
fit in my design though so I put it in.


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