[igouy]

> Fig. 4. "This simple model captures the relationship implied in Pereira et al., namely that the choice of programming language has a direct impact on total energy consumption."

"Pereira et al." state that "the quality of the compiler, and its (aggressive) optimizations all greatly influence the performance of the resulting programs".

iow the relationship implied in "Pereira et al." is that shown in Fig. 5. "We are in fact comparing implementations of programming languages, not the languages themselves."

"Pereira et al." state that "… energy consumption does not depends only on execution time, as shown in the equation Energy = Time × Power."

iow the relationship implied in "Pereira et al." is that shown in Fig. 8. "Energy consumption is the product of power and time."

"Pereira et al." state that "… a software program may become faster by improving its source code …"

iow the relationship implied in "Pereira et al." has elements of Fig. 12. "The final model incorporating application implementations".

The simple model of Fig. 4. is a strawman.