[erlang-questions] OTP Efficiency

Torben Hoffmann <>
Thu Jun 3 10:09:21 CEST 2010


I have similar experiences - see
http://groups.google.com/group/erlang-programming/browse_thread/thread/93ed9747126fd30d?pli=1
for my war story.

Cheers,
Torben


On Wed, Jun 2, 2010 at 17:43, Evans, Matthew <> wrote:

> Well OTP will add some extra load on your system.
>
> The gen_server:call / gen_server:cast adds a bit of extra load such as
> monitoring of the destination process, timers, some extra pattern matching.
>
> However, trust me, as someone who used to think that such overheads would
> be unacceptable and started to develop an application that wasn't OTP I soon
> regretted it. My application soon became a mess that was hard to debug and
> extend, and I soon ended up spending a day making it OTP.
>
> The advantages that OTP provides to make your application structure easier
> to understand and more extendable soon pays for any performance loss you may
> see. I would also add that if you need reliability in your service you will
> just need to reinvent what OTP has already provided for you anyway.
>
> If performance is really a high priority you can always use the handle_info
> callback to receive messages.
>
> The only time I don't use OTP are for processes that never receive any (or
> perhaps a single) messages, and perform a unique task (such as process a
> batch of data, wait for a resource etc).
>
> Matt
>
> -----Original Message-----
> From:  [mailto:] On
> Behalf Of maruthavanan s
> Sent: Wednesday, June 02, 2010 7:06 AM
> To: 
> Subject: [erlang-questions] OTP Efficiency
>
>
> Hi All,
>
>
>
> I could understand that OTP gives us a fault tolerant solutions like
> restarting on crashing, supervisors, FSM behaviours etc.
>
>
>
> I am curious on the efficiency of a application.
>
>
>
> Say for e.g. I develop a solution with both OTP and without OTP (handling
> 100% errors may be not possible :) ) which one would be efficient?
>
>
>
> Thanks,
>
> Marutha
>
>
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