Re: Adding epoll support to Kannel

Andreas Fink <[email protected]> Fri, 14 Nov 2014 22:38:11 +0100
Newsgroups	gmane.comp.mobile.kannel.devel
Message-ID	<[email protected]>
the question to ask is "what kind of problem are we trying to solve"?

I could imagine having a SMPP driver which has one thread reading all the incoming packets by sitting on a single poll call dealing with all the connections in parallel. This reduces the amount of threads but it also increases the workload per thread up to the extent that multi core CPU's would be not so efficiently used. It depends a lot on the environment you are in as well. So far I have not see any performance issues with Kannel and its threading model.

Also epoll is not supported on my favourite operating system and seems to exist only under Linux.

> Am 14.11.2014 um 22:27 schrieb Porter, Kelvin R. <[email protected]>:
> 
> Hi,
> 
> Epoll generally adds a lot of complexity.  Generally, using epoll implies thread-pooling, use of semaphores, etc.  Is this consideration being driven by profiling indicating that the processes are somehow being thread-bound?  Or some other consideration?
> 
> Regards,
> 
> Kelvin R. Porter
> 
> -----Original Message-----
> From: devel [mailto:[email protected]] On Behalf Of Donald Jackson
> Sent: Friday, November 14, 2014 3:21 PM
> To: kannel_dev_mailinglist
> Subject: Adding epoll support to Kannel
> 
> Hi all,
> 
> Do any of you have any comments or concerns about potentially adding epoll support to Kannel ?
> 
> I think long term this could be used for better connection management rather than the 'connection per thread' approach we currently make use of (mostly).
> 
> Cheers,
> Donald
> 




Andreas Fink

CEO DataCell ehf
CEO Backbone ehf

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