> The straightforward "every program all the time" compiler is likely within 2-3x of the fully optimized version (for most things)
Citation needed. Pulling numbers out of your ass doesn't an argument make.
Citation needed. Pulling numbers out of your ass doesn't an argument make.
And with that philosophy, I believe it was within 2-3x of C++ in most benchmarks, despite being in a higher level language (though no doubt it's much slower on some benchmarks).
That said, they continue to optimize the compilers (e.g. https://news.ycombinator.com/item?id=9099744). People obviously do want speed; 2x slower isn't acceptable in many cases.
"The results of our experiment suggest that Proebsting’s Law is probably true. The reality is somewhat grimmer than Proebsting initially supposed."
"Proebsting has suggested that the compiler and programming language research communities should focus less on optimization and more on programmer productivity"