LTO (Link Time Optimization)

Link Time Optimization (LTO) is a compiler technique that improves the performance of programs during the linking phase, the stage where various pieces of code are combined into a final executable. By analyzing the entire program at once, LTO allows the compiler to make more informed optimizations, such as eliminating unused code and improving function calls. This results in faster execution times and reduced memory usage. Essentially, LTO enhances the efficiency of software without changing the way programmers write their code, ultimately leading to better-performing applications.