3 ms·

I don't see us in disagreement then. I took the IOT one as illustration. But even the current project, isn't that big, and they do want properly done job.

• rubber_duck 10y ago
  But FB guys don't micro optimize (they use PHP FFS), they measure production systems and look for bottlenecks. Premature optimization is a gut feeling based guessing game not quality engineering.
  • bertr4nd 10y ago
    FB engineer here; worked on HHVM for several years. We absolutely do "micro-optimize", e.g., our string hashing code is written in hand-tuned assembly. Where we apply those optimizations is, of course, driven by profiling, so those statements aren't entirely in conflict.
    • rubber_duck 10y ago
      Well they are in the context - the article talks about premature optimization - and the OP argues you should micro optimize to be a good engineer. What I'm saying is the only way to do optimization correctly is by doing the things you and everyone else is doing when it matters - measure before and after - the rest is just assumptions that rarely pan out the way you expect them to - at least that's my experience with optimization when I was still doing game dev. You can really do micro optimization up-front