[rabbitmq-discuss] RabbitMQ QUEUE MESSAGES

Mon Aug 19 09:09:45 BST 2013

Artur,

On 06/08/13 14:32, rabbit15 wrote:
> Hi, I saw that there is still not the same like with my buffer. When I used
> my buffer than it was on the same speed all the time. If I run with
> qos.basic(1), but without my buffer than the speed was better than without
> qos, but still there are different values even 0.

As I explained, using basic.qos actually hurts performance, but can 
produce *more consistent* performance.

Note that in general when simultaneously sending to and consuming from a 
queue, the performance can fluctuate. That's because the queue is a 
synchronisation point - it can only deal with publishing *or* 
consuming/ack'ing. The balance between the two is down to scheduling and 
can shift over time.

Regards,

Matthias.