gistfile1.txt

[2.2.2 rails (4-2-stable)]$ bench=1 version=4-2 ruby scope.rb
Calculating -------------------------------------
               scope   717.000  i/100ms
-------------------------------------------------
               scope      7.539k (± 6.6%) i/s -     38.001k
[2.2.2 rails (4-2-stable)]$ g co 4-1-stable
Switched to branch '4-1-stable'
Your branch is up-to-date with 'origin/4-1-stable'.
[2.2.2 rails (4-1-stable)]$ bench=1 version=4-2 ruby scope.rb
Calculating -------------------------------------
               scope     1.055k i/100ms
-------------------------------------------------
               scope     10.757k (±20.0%) i/s -     51.695k