| > Going from 3 to 4 and getting a 50% speedup That's way too low goal to even matter. See this: https://news.ycombinator.com/item?id=17007867 A simple loop in loop is 50 times faster in Javascript in the Firefox than the same loop in loop in Python. When you say "50% speedup" I understand you expect a speedup of 2 in "10 years". Before V8 the Javascript in Firefox was even slower than Python is now. And now it's 50 times faster than Python for "simple" things (which are actually the most important ones to be made faster). PyPy also proves that some code can be JIT-ed. One of the PyPy's problems is the "compatibility with libraries" part. And yes, that kind of speedup like in Javascript is achievable in Python too. It's just a question of the right people being paid to do that. I've personally made some JIT compilers and I'm sure that Python can also have really useful faster interpreter and JIT. The approach of V8 for speeding up the "objects" as they are typically used and the calls can surely be applied to Python: From the article: "The instrumented interpreter found that 70% of objects have all of their attributes set in the object's __init__() method." As far as I know, V8 approach shines for such objects. Also note that modern Javascript engines don't do only JIT or only interpretation, they adapt in runtime. |