[rabbitmq-discuss] Measuring Broker Behavior

Mon Jun 8 19:56:34 BST 2009

Kyle,

Kyle R. Burton wrote:
> I'm evaluating AMQP at work and wrote a post about the initial testing
> approach.  Monadic (via twitter) asked me to share on the list, the
> post I wrote up is here:
> 
>   http://asymmetrical-view.com/2009/06/02/incanter-amqp-benchmark.html
> [...]
> At this point I don't know much about tuning Erlang or Rabbit, if
> anyone has any advice about where to look for information on tuning,
> about our methodology, or questions please let me know.

I have two recommendations on the methodology:

- Use basic.consume, ideally with noAck=true, instead of basic.get. The 
former is much more efficient.

- Throttle the producer. Measuring receiving rates and latencies when 
you are bombarding the broker with messages as fast as the client can 
send them is not going to give very good or reproducible results since 
the broker will try to keep up with the producers and queue messages.

Matthias.