Get ready for the 3rd round of performance testing!

Its been almost an year since we last conducted performance benchmarks on the leading open source and commercial ESB's. We published the results from the last performance tests at:
http://wso2.org/library/1721
http://wso2.org/library/2259

For this round, I will be using a new set of scenarios, where I would measure the performance of each implementation for 1K, 5K, 10K, 100K and 500K requests/responses, for the simple proxy, content based routing and XSLT transformation scenarios. I would also introduce an artificial delay at the backend service implementation to determine how well the ESB's operate when waiting for the actual services to respond.

For this round of testing, we will compare:
Apache Synapse / WSO2 ESB 1.7
Mule 1.5.1 EE
Mule 2.0.1 CE
Apache ServiceMix 3.2.1/4.x?
JBossESB 4.3GA
OpenESB v2

Stay tuned for more information as we actually conduct the tests.. and post results!