Billion-query-per-second lookup tables in C++
Summary
The article explains a C++ approach to perfect hashing to achieve billion-lookup-per-second performance for string-to-value mappings. It covers the theory of perfect hashes, how to implement them with a constexpr map, and benchmarks comparing against std::unordered_map and gperf, including code examples and performance results. The content is valuable for developers seeking high-performance string lookup and efficient compile-time optimization in performance-critical systems.