[Freeswitch-users] Python vs LUA

[Antonio Teixeira]

Hello Anton

If you are designing simple stuff  with python , stick with it.
If you are using tons and tons of IVR's calls , Lua is more lightweight ,
don't forget that python is a highly heavy duty language.

If you process a large number of ivrs ( millions) ESL will be the best
solution you can find a server.py in your pythonesl folder , if you can't
find it drop me an e-mail.

Currently i'm developing a framework that will behind a load Balancer scale
the "Application" part of the ivr's.

A smal framework for your case could be :

server.py from pythonesl > It's A threaded Server Not MP , means every call
will be equal to 1 thread ! Be carefull :D
Sqlalchemy will support connection polling.

If you need further help just ask :)

A/T



2011/4/27 Nicolas Brenner <nico at clickfono.com>

> After having used Javascript and Lua for scripting in FreeSWITCH, I would
> recommend using ESL for anything serious. There are many advantages to using
> ESL instead of a script inside FreeSWITCH, but the main one for me was
> easier call control, especially when doing asynchronous stuff. I believe
> there's a Python version of the ESL library, so you shouldn't have much
> trouble getting started.
>
>
> On Wed, Apr 27, 2011 at 2:35 AM, Anton VG <anton.vazir at gmail.com> wrote:
>
>> Hello!
>> Cannot get answer for myself for languages processing overhead/preference,
>>
>> I personally would like to use Python for scripting under Freeswitch,
>> but considering some recent list activity about low CPS while using
>> python scripts, etc
>> querstioning, maybe it's better to use LUA instead? WIKI or list does
>> not answer this questions in satisfying manner unfortunatelly. For DB
>> intensive scripts - DB connections pool is a very important stuff,
>> having direct influence performance and CPS specifically.
>>
>> It looks that lua might be lighter and more tightly integrated to FS,
>> but if processing overhead difference is just a few times python is
>> still preferred for me (and many others) since much more
>> powerfull/libraryreach/etc.
>> I'ts would be just nice to clear this question.
>>
>> 1. Is there any comparisions on plain processing overhead?
>> 2. Any data on memory consumtption per active python process?
>> 2. Is there a freeswitch DB pool connection interface like for LUA in
>> mod_python?
>> 3. If not - what would be the known technique to use external DB
>> connection pool from inside the FS python script?
>> 4. Seems logical, but please confirm/reject - once executed (compiled
>> to the bytecode) - the second time the python script under FS will be
>> executed as precompiled bytecode?
>>
>> Regards,
>> Anton.
>>
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