Скачать или смотреть Using Lazy Instantiation for a MASSIVE compilation speedup - Template Metaprogramming in C++ - E11

Compilation time is often a problem for big C++ projects. If you've been playing around with the template-heavy metaprogramming techniques we've discussed in this series, you might have already noticed that they can be a big contributor to compilation time. Especially in large projects.
After introducing the topic of high-performance metaprogramming in the previous episode we are going to look at one of the main problems of that results in slow compilation times: eager template instantiations. We will demostrate the problem by analyzing a naive implementation of the remove_if algorithm and will explain the solution: lazy instatiation. We'll find that the implementation that results from this optimization will perform almost 100 times better than the original!

Github: https://github.com/QBouts/BitsOfQ

Full playlist:    • C++ Template Metaprogramming  

-- TIMESTAMPS --
00:00 - Intro
00:30 - remove_if
01:06 - Naive implementation
04:18 - Benchmarks
05:02 - Analyzing the implementation
08:38 - Eager vs Lazy instantiation
10:49 - Benchmarking the Lazy implementation
10:20 - Rule nr 1 of high-performance metaprogramming

If you have any questions or feedback, just leave a comment below.

See you next time!