A C language program cross-compiled to asm.js and run as an Ahead Of Time (AOT) compiled chunk of bytecode will (according to Mozilla) typically be within 50% or better of the fully native ...

Bytecode is generated by a compiler from a high-level programming language (e.g., Java) and is optimized for portability and ease of interpretation.

Wasmer says the goal of WASIX is to allow any kind of program to run on top of WebAssembly, and this requires system call extensions that fill gaps in WASI. Bytecode Alliance says WASIX is non ...