I implemented an algorithm in Python and C++. Heavily IO bound task, read a float, multiply it with a factor, save to another file. Input file was several Gigab

I implemented an algorithm in Python and C++. Heavily IO bound task, read a float, multiply it with a factor, save to another file. Input file was several Gigabytes. I didn't do any optimization and I'm a C++ noob. Python was 30 times slower.