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Maybe a lot of people is developing in Python, Ruby, PHP and others traditionally interpreted languages and aren't aware of it. Using C or C++ for some domains

Maybe a lot of people is developing in Python, Ruby, PHP and others traditionally interpreted languages and aren't aware of it. Using C or C++ for some domains would be painful, but regarding speed, memory usage or energy usage those languages tend to be the best. If only Rust would be less C++ like (I prefer "RISC" like languages)

nicoburns 6y ago
True, although Python and Ruby are extreme cases here. PHP is JIT'd these days, and can be quite a bit faster on this kind of numerical code. JavaScript even more so. I've seen posts on r/rust asking why their Rust port wasn't faster than the JS version, and it turned out not to be lack of optimisation, it was just simple numerical code (doesn't require allocation) which is already super-optimised by modern JS engines.
- igouy 6y ago
  MJIT https://www.ruby-lang.org/en/news/2020/12/25/ruby-3-0-0-released/ https://www.ruby-lang.org/en/news/2020/12/25/ruby-3-0-0-rele... (Also pypy)
  - Rochus 6y ago
    The performance gain of the MRI Ruby JIT is not really impressive, see e.g. http://software.rochus-keller.info/are-we-fast-yet_crystal_ruby_2_3_lua_node_i386_results_2020-12-23.pdf http://software.rochus-keller.info/are-we-fast-yet_crystal_r.... Actually also the factor 4 PyPy speed-up in geomean is not that much overall (e.g. compared to V8).
    - igouy 6y ago
      But it's existence is sufficient to add Ruby to the "is JIT'd these days" list.