Github user parthchandra commented on the issue:
https://github.com/apache/drill/pull/914
I was hoping that we would just get better encapsulation without losing
performance. This performance boost is rather serendipitous.
One possible explanation might be in the JVM optimizing away code paths in
the benchmark itself. This means that we might not see the same performance
gains in real life. @bitblender knows more about this than I do. ---
