The problem is that what do you measure. 

When you move computation from the CPU to a GPU for example does it consume less or more. 

I think that such analyses are totally stupid. 

Is a fast execution consume less? I have serious doubts about it.

Now if we measure how fast we drain a battery because of polling vs event based then this is different. 

S. 

On 1 Oct 2020, at 13:47, Jonathan van Alteren <jvalteren@objectguild.com> wrote:

Hi all,

I am interested in energy efficiency metrics for Pharo (version >=8). Just now, I came across this research and related GitHub project:

• https://sites.google.com/view/energy-efficiency-languages
• https://github.com/greensoftwarelab/Energy-Languages

Unfortunately, the paper mentions that Smalltalk was excluded from the results because the (VW) compiler was proprietary :-S However, the GitHub repository does contain Smalltalk code and results, but I haven't been able to evaluate those.

[1] Does anyone here have more information on this topic?


The benchmarks seem to be low-level algorithms. Although that is useful, I think that a better argument for Pharo/Smalltalk efficiency is that a good OO design (e.g. created using responsibility-driven design with behaviorally complete objects) will be a better fit, can be much simpler and will thus be more efficient during development, as well as easier to maintain and evolve.

[2] Has anyone done any research in this area that can quantify this aspect?

Kind regards,

Jonathan van Alteren

Founding Member | Object Guild B.V.
Sustainable Software for Purpose-Driven Organizations

jvalteren@objectguild.com

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