Performance comparison between ZeroMQ, RabbitMQ and Apache Qpid?

RabbitMQ is probably doing persistence on those messages. I think you need to set the message priority or another option in messages to not do persistence. Performance will improve 10x then.

You should expect at least 100K messages/second through an AMQP broker. In OpenAMQ we got performance up to 300K messages/second.

Hmm, of course ZeroMQ will be faster, it is designed to be and does not have a lot of the broker based functionality that the other two provide. The ZeroMQ site has a wonderful comparison of broker vs brokerless messaging and drawbacks & advantages of both.

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