Re: asynchat sends data on async_chat.push and .push_with_producer

[Jean-Paul Calderone]

On Tue, 13 May 2008 11:50:30 -0700 (PDT), Giampaolo Rodola' <gnewsg@gmail.c omwrote:

>On 13 Mag, 17:59, Josiah Carlson <josiah.carl... @gmail.comwrote :
>

>We do not live in a pure world, Python isn't pure (practicality beats
>purity), and by attempting to send some data each time a .push*()
>method is called, there are measurable increases in transfer rates.

>
>Good point. I'd like to ask a question: if we'd have a default
>asyncore.loo p timeout of (say) 0.01 ms instead of 30 could we avoid
>such problem?
>I've always found weird that asyncore has such an high default timeout
>value.
>Twisted, for example, uses a default of 0.01 ms for all its reactors.

I'm not sure this is right. What timeout are we talking about? Twisted
only wakes up when necessary.

Jean-Paul

[Giampaolo Rodola']

Re: asynchat sends data on async_chat.push and .push_with_prod ucer

On 13 Mag, 22:16, Jean-Paul Calderone <exar...@divmod .comwrote:

On Tue, 13 May 2008 11:50:30 -0700 (PDT), Giampaolo Rodola' <gne...@gmail.c omwrote:

On 13 Mag, 17:59, Josiah Carlson <josiah.carl... @gmail.comwrote :

>

We do not live in a pure world, Python isn't pure (practicality beats
purity), and by attempting to send some data each time a .push*()
method is called, there are measurable increases in transfer rates.

>

Good point. I'd like to ask a question: if we'd have a default
asyncore.loop timeout of (say) 0.01 ms instead of 30 could we avoid
such problem?
I've always found weird that asyncore has such an high default timeout
value.
Twisted, for example, uses a default of 0.01 ms for all its reactors.

>
I'm not sure this is right.  What timeout are we talking about?  Twisted
only wakes up when necessary.
>
Jean-Paul

I'm talking about the asyncore.loop timeout parameter which defaults
to 30 (seconds).
I don't think that Twisted only wakes up when necessary (surely not by
using the select reactor).
Think about the schedule calls feature (reactor.callLa ter).
To have that work I guess that a continuous loop must always be kept
alive, regardless of the reactor used.

--- Giampaolo

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