ESB Performance is one of the critical factors when you are choosing an ESB for your enterprise integration requirements. Different vendors carries out performance tests with respect to others by time to time. WSO2 is an open source ESB vendor which carries out performance tests frequently since their inception in 2005. With the latest performance test results, WSO2 compares the performance of 4 leading open source ESB vendors with a benchmark test scenario. Given below is the result of the performance test done by WSO2 on a amazon EC2 instance which is publicly available to reproduce these results. You can find a detailed description about this performance test from the below article. http://wso2.com/library/articles/2014/02/esb-performance-round-7.5/
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