Which programming language is fastest? Top 5 program performance comparisons — C# vs Java Go vs Java Ruby vs Python Rust vs C++ Rust vs Go Compare measurements of a few similar programs — simple How do programs in these languages compare? Ada C Chapel C++ C# Dart Fortran Erlang F# Go Haskell Java JavaScript Julia Lisp Lua OCaml Pascal Perl PHP Python Racket Ruby Rust Smalltalk Swift Compare all the fastest CPU times — summary charts Toy programs { project repo } A History