[erlang-questions] Active mode and packet http

[Ingela Andin]

Hi!

I would like to make a quick survey to find out if there is anyone out
there that is
using active once or active true socket option together with the inet
option {packet, http | http_bin} .
If you are please drop me a line

Yaws and Mochiweb seems to use passive mode.

Regards Ingela Erlang/OTP team - Ericsson AB

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[Roberto Ostinelli]

misultin uses {active, once} for headers, passive for html body, and
{active, true} for websockets.

http://code.google.com/p/misultin/

cheers,

r.

2010/8/17 Ingela Andin <ing...@erlang.org>:

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[Bob Ippolito]

On Tue, Aug 17, 2010 at 10:36 PM, Ingela Andin <ing...@erlang.org> wrote:
> Hi!
>
> I would like to make a quick survey to find out if there is anyone out
> there that is
> using active once or active true socket option together with the  inet
> option {packet, http | http_bin} .
> If you are please drop me a line
>
> Yaws and Mochiweb seems to use passive mode.

I've played with {active, once}, it seems like it might be a little
bit faster than passive. A future version of mochiweb might use it, at
least for the request line and headers, similar to what misultin does.

-bob

[Steve Vinoski]

On Tue, Aug 17, 2010 at 10:53 AM, Bob Ippolito <b...@redivi.com> wrote:
> On Tue, Aug 17, 2010 at 10:36 PM, Ingela Andin <ing...@erlang.org> wrote:
>> Hi!
>>
>> I would like to make a quick survey to find out if there is anyone out
>> there that is
>> using active once or active true socket option together with the  inet
>> option {packet, http | http_bin} .
>> If you are please drop me a line
>>
>> Yaws and Mochiweb seems to use passive mode.
>
> I've played with {active, once}, it seems like it might be a little
> bit faster than passive. A future version of mochiweb might use it, at
> least for the request line and headers, similar to what misultin does.

Bob, I think you're right -- we just did some measurements last week
that appeared to show that {active, once} is indeed a bit faster than
passive mode.

Ingela, I use {active, once} for HTTP headers in the system I work on.

--steve

[Roberto Ostinelli]

> Bob, I think you're right -- we just did some measurements last week
> that appeared to show that {active, once} is indeed a bit faster than
> passive mode.

definitely. according to my benches, it was around 8-12% faster on R13B01.

r.

[Tony Rogvall]

Of course I use the active once when ever possible (including http)
This is how you can multiplex in one process.

Why do you ask?

/Tony

[Steve Davis]

I'm experimenting with {active, true}, because I perceive it to be
more "otp", and perhaps just to see whether the predicted doom/fear of
flooding actually happens in practice on an http server connection...

...No load/profiling stats as yet. Probably a month or two before I'll
get to those.

/s

[Steve Davis]

However, I'm using binary/raw mode and parsing the http requests - so
may not be of interest.

On Aug 17, 8:16 pm, Steve Davis <steven.charles.da...@gmail.com>
wrote:
> I'm experimenting with {active, true}....