[Vala] Vala vs Mono performance benchmark project



Hi All,

I've prepared a little benchmark measuring Vala object system
performance ( http://gitorious.org/vala-object-benchmarks )

- object creation and destruction
- method, virtual method, interface method, signal, delegate, delegate
  from a closure calling times
- type checking
- threading locks

This benchmark is not intended to measure general performance (we have
vala benchmarks in http://code.google.com/p/vala-benchmarks/ for this),
but just to measure object system performance. From what I've seen:

- type checking 2 times slower than in Mono
- threading (locks) in vala beats mono easily - 19 seconds vs 50
  seconds!!
- object creation/destruction suck
- setting/reading property or field beat Mono easily, but I think it's
  the matter of compiler optimization; but in classes inheriting from
  GObject setters are very expensive (due to issuing a signal)
- calling methods, virtual methods, delegates, lambdas - vala beats
  mono, but slightly
- interface methods, signals - we really suck, and there's no excuse
  for this. I guess that it can't be fixed in glib, but in dova...?
- ref/unref - we really suck
- weak ref/unref - we beat Mono easily, I guess that even if the
  pointer assignment was not optimized out by a compiler we'd do this.
  Mono is surprisingly bad at this.

I guess that at least some of the vala performance drawbacks can be
fixed in dova, as it's a total redesignment of the object system,
true?

If some of you would like to add some benchmarks / fix something in the
existing ones, please do this, and have fun with the code that I made ;)

best regards,

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