[redtuesday]

I'am certain they didn't test the versions that got merged the last two days (for example the scala version has a working db test now). So we will probably see some improvements in the next version.

EDIT: @json performance difference:

Seems to me like they tested these two versions:

Java - https://github.com/TechEmpower/FrameworkBenchmarks/blob/5203...

Scala (the version with the not working db) - https://github.com/TechEmpower/FrameworkBenchmarks/blob/b89f...

The scala version uses val, which ist like final in java. final enables the JVM to cache this object an run optimizations. So I suspect the object creation only happens once in the scala case, whereas in the java case on every request. I think this is happening here which results in much better performance for the scala version.

But maybe I am wrong and the difference stems only from implementation differences in the controller etc. I'm a php guy and don't know the jvm or scala very well. ;o)