Generalities on optimization in sequential

• importance tests

• importance bench and profiling

• hot code very concentrated + premature optimization

• CPython usually fast enough for cold code

• algos and complexity!

• avoid useless computations

• importance compilation for optimized machine code

• importance locality and arrays, notion of SIMD

• move the Python/native barrier

• Numpy vectorized

• ahead of time compilation (can be through transpilation)

• JIT compilation