Hi Steven. Could you show code which you measure?
2017-06-16 17:17 GMT+02:00 Steven Costiou <steven.cost...@kloum.io>: > I have been playing a bit with anonymous subclasses, and instances of anon > subclasses seem slower to execute code than "regular" subclasses instances, > but sometimes they reach equivalent performances (for code defined in > anon-subclasses). I don't understand why. > > I have a class A with a method m. > B is subclass of A with a new method m1. > Anon-A is an anonymous class of A which also implements the m1 method. > > I did various tests of speed and: > > - when executing m, compiled in A, instances of Anon-A are around 10% > slower than instances of B > > - when executing m1, compiled in B and in Anon-A, performances are > equivalent between instances of B and of anon-A > > Is that a particular behavior of anonymous subclasses, like their > instances can easily find behavior defined in their class but have to > perform extra-work to find methods defined in their superclass (which is > not anonymous) ? Is that vm related ? Other ? > > Steven. >