The new stuff of Echo3
Echo3 nearly retains the API of Echo2 for end developers, but provides a new web container layer that offers superior performance and extensibility. The new web container also provides the capability to write Echo applications entirely in client-side JavaScript using an API patterned after that of server-side Echo (using the client API is entirely optional, Echo3 applications may also be written entirely in server-side Java).
Some Echo3 Vs. Echo2 Performance Numbers
Take these numbers with a grain of salt, but here's a ghost test run of Echo3 vs. Echo2. Ran this test on a Core Duo 1 MacBook, 1.8GHz, 2GB memory, OS X Tiger, Jetty, JDK 1.5, Firefox 2.0.0.7. The browser was using nearly 100% of 1 core, the JVM was using 5% of the other (client and server were running on same machine). Echo2 is latest SVN, Echo3 is near latest. Echo3 was dumping all synchronization messages to the console as well, probably should turn that off, but it might not even make a difference.
Echo2 test:
localhost:8080/InteractiveTest/ia?ghost=1&script=1&iterations=500
105 seconds 4.76 iterations/second.
Echo3 test:
localhost:8080/TestApp/app?ghost=1&script=1&iterations=500
65 seconds 7.69 iterations/second.
61% faster.
That's cool. There is only one reason I don't like this Ajax framework is because the performance. I think no body will stand such slow application even if it's beautiful. But~ the performance result of Echo3 is 61% faster than Echo2. WOW... I'm sure I will take time to research it.
http://echo.nextapp.com/site/echo3
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