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Writing Efficient C++ Code (2013)

176 points · 161 comments · ibobev

  1. hn_submit · · focus · HN ↗
    I write in C++ almost every day but never have the need to optimize for speed. Even when you write straightforward code it's already blazingly fast.
    1. spacechild1 · · focus · HN ↗
      It really depends a lot on the domain.

      In (soft) realtime audio programming, your audio callback might only have a time budget of 1.3 milliseconds. Everytime you exceed that limit, you'll hear a dropout. That's when you'll start to optimize the hell out of your program :)

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