Re: [mdt-ocl.dev] Benchmark results OCL/Ecore Plugin Tests

["Willink, Ed" <Ed.Willink@xxxxxxxxxxxxxxx>]

Hi Axel

I feel that you're flogging the wrong horse.

> 
>   1) We can try to accelerate execution by using switch(...) based on 
> Ecore feature IDs instead of polymorphic visitor dispatching 
> and see how 
> much that gains.

The pivot evaluator apart from dynamic dispatch does direct dispatch via

OperationCallExp to the OperationCallExp.referredOperation
to Operation.implementation which is a Java class; no visits, no switches.

The Pivot variant of LoopExp has an equivalent referredIteration so no
need to string match a set of reserved iterator names.

> 
>   2) We can try to improve specific bottlenecks such as the 
> tuple hash 
> code computation (easily solvable by caching the constant 
> tuple's hash 
> code once computed), as well as the tuple creation process 
> which seems 
> to spend more time than seems appropriate for cloningi an 
> IntegerRange 
> which, as an immutable object itself, could just be 
> referenced instead 
> of copied in this case.

Already cached in the Pivot variant; it gave me a lot of debugging trouble
because Tuple hashes were not repeatable for compatible types such as 4 and
4.0.

Regards

	Ed

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