RabbitMQ Server is performance testing tool that allows to test sending and receiving capability (messages per second) of different client applications.
Currently it can be configured to simulate workload of C# application. But it can be extended to test other consumers and producers of messages such as SQL Server Integration Services.
Here is very interesting question on StackOverflow about how to post messages to RabbitMQ from SQL Server.
If you'd like to contribute, please fork the repository and submit a pull request. Thanks.