V8 engineers achieved a 2x performance improvement in JSON.stringify by implementing a side-effect-free fast path that bypasses expensive checks for common data objects. Key optimizations include templated string handling for different character encodings, SIMD instructions for string escaping detection, hidden class caching
•8m read time• From v8.dev
Table of contents
A Side-Effect-Free Fast Path #Handling different String Representations #Optimizing String Serialization with SIMD #The Express Lane on the Fast Path #A faster double-to-string algorithm #Optimizing the underlying temporary buffer #Limitations #Conclusion #Sort: