Why does v8 saves the source code of native javascript in generated binaries?

Question

I\'ve been studying the v8 source, particularly at how the \'mksnapshot\' tool includes a compiled image of the native javascript files(runtime.js, json.js...) in the v8 binarie

Answer 1

Probably because caching the binary is what makes v8 so incredibly fast: It was built to be very fast. So they have taken extreme steps to make it fast. Pre-generated binaries of native code take away the thinking from the client, making it run just that much faster. There are optimizations like this all over v8. :)