4 ms·

I guess the tradeoff is speed and convenience. If we wanted to have the absolute best performance, we would have to write web apps in C. But it would be quite

• jerf 8y ago
  It's not a value judgment, which I feel (though I can't prove) you are still reading it is. But it isn't. It just is what it is. The performance characteristics of various technologies just... are. It's a mistake to read too much value judgment into it. I don't "hate" PyPy because it's not as fast as C, or love C because it's fast. They've got all sorts of characteristics, and a professional engineer ought to understand them as dispassionately as possible to make decisions about how to solve problems. PyPy is a solution to "my Python code is running slowly". For very little effort you can obtain a very cheap speedup. It may not be all you need, but it's very engineer-effort cheap. But it certainly isn't a solution to "my Python code is running slowly but I need it to run at C speeds", and there are a ton of other solutions to the problem "My Python code is running slowly", since Python is such a slow language on its own terms. (By contrast, "my C code is running slowly and I've already profiled it a lot, etc." is a huge problem.)
  • tiangolo 8y ago
    Yep, agree. Thanks for the clarification.