PUBLIC MARKS from greut with tag rabbitmq

RabbitMQ 1.6 has an option to set a pre-fetch limit. So we simply set the pre-fetch limit to 1, and our EventMachine loop runs nice and fast now. You'll want to tweak your pre-fetch limit depending on how long it takes to process each message. If you can churn through a hundred messages a second, you probably won't even notice this problem and the prefetching will help you, but if it takes you a few seconds (or minutes) per message, you'll wonder why things aren't popped off the queue for several minutes (or hours).

One of the infrastructure tools that we've identified for the future internal architecture of Second Life is messaging. Message queuing systems allow systems that send messages to not have to worry about how they will be delivered, and allow consumers of messages to gather whichever ones interest them, at their own pace.

And the winner is…