[rabbitmq-discuss] Puka client and publisher confirms performance

[Gavin M. Roy]

Thanks for the indirect heads up on this ;-) 


On Tuesday, March 20, 2012 at 8:52 AM, Aaron Westendorf wrote:

> I looked at the changes and in addition to those, I recommend using
> the Python deque class for your buffers. I noticed a significant
> improvement in performance when I switched to them in haigha.
> 
> cheers,
> Aaron
> 
> 
> 
> On Tue, Mar 20, 2012 at 6:41 AM, Marek Majkowski <majek04 at gmail.com (mailto:majek04 at gmail.com)> wrote:
> > On Wed, Mar 14, 2012 at 18:59, Marek Majkowski <majek04 at gmail.com (mailto:majek04 at gmail.com)> wrote:
> > > On Wed, Mar 14, 2012 at 18:42, Marek Majkowski <majek04 at gmail.com (mailto:majek04 at gmail.com)> wrote:
> > > > On Wed, Mar 14, 2012 at 12:31, Christos Stavrakakis
> > > > <stavr.chris at gmail.com (mailto:stavr.chris at gmail.com)> wrote:
> > > > > I am using Puka client [1] in order to send messages with guaranteed
> > > > > delivery using publisher confirms.
> > > > > 
> > > > > Trying to send 200.000 messages I see that waiting for the confirms, takes a
> > > > > lot of time.
> > > > > 
> > > > > To be more specific:
> > > > > 
> > > > >     promises = []
> > > > >     t0 = time.time()
> > > > >     for i in range(0,200000):
> > > > >         promise = client.basic_publish(exchange='test_exchange',
> > > > > routing_key='test',
> > > > >                                                               body="Hello
> > > > > world!")
> > > > >         promises.append(promise)
> > > > > 
> > > > 
> > > > 
> > > 
> > > 
> > > Right, there is a performance problem with handling pubacks. The complexity
> > > grows with n^2 of unacked messages
> > > 
> > > Good news: the problem is in this line:
> > >   https://github.com/majek/puka/blob/master/puka/machine.py#L147-148
> > > 
> > > Bad news: I have no clue how to fix it.
> > > 
> > > I've rised an issue on github:
> > >   https://github.com/majek/puka/issues/12
> > > 
> > 
> > 
> > Christos,
> > 
> > Thanks for your report and for the pull request!
> > 
> > I just uploaded puka 0.0.4 to pypi, which solves the problem.
> > 
> > Cheers,
> >    Marek
> > _______________________________________________
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> > rabbitmq-discuss at lists.rabbitmq.com (mailto:rabbitmq-discuss at lists.rabbitmq.com)
> > https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
> > 
> 
> 
> 
> 
> -- 
> Aaron Westendorf
> Senior Software Engineer
> Agora Games
> 359 Broadway
> Troy, NY 12180
> Phone: 518.268.1000
> aaron at agoragames.com (mailto:aaron at agoragames.com)
> www.agoragames.com (http://www.agoragames.com)
> _______________________________________________
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> 


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