[rabbitmq-discuss] Query about performance

[Michael Giagnocavo]

>> i) Removed basicQos() call from the consumer code, so that the full 
> capacity is used

>Consider using a larger prefetch count instead of unlimited.

I'll just an an anecdote here: Shovel does unlimited prefetch by default. This lead to our RabbitMQ instances grinding to a halt under any sort of load due to exhausting memory. A 2K msg prefetch solved everything with no perf loss.

-Michael