Part the third:

Effortless Performance Improvements in C++: std::vector

by Julien Jorge

From the article:

This is the third post in the series about effortless performance improvements in C++. Check the first post to get the full story!

Last time we switched from std::map to std::unordered_map and got 30% performance improvements. After these changes we observed that the tokenize function was a top hotspot, mostly due to std::vector::push_back. How can we improve the performance of this function? ...