While sending data between C++/Go/Java processes as JSON is a waste, when one part is a scripting language, JSON can be more efficient than alternatives. Recen

While sending data between C++/Go/Java processes as JSON is a waste, when one part is a scripting language, JSON can be more efficient than alternatives. Recently I benchmarked extension API in Chromium. Those can send arbitrary data from C++ main browser process to the renderer process running extension JS code. Internally API use a binary format plus they verify that the data matches API scheme. It turned that for complex data writing the data to JSON on C++ side, sending the string using the same API and decoding that in JS was faster. The code to read binary data and convert that to JS plus the scheme verification was not optimized in Chromium, while JSON decoder was.