• TestDrivenDevelopmentFrequentlyAskedQuestions

If you refactor to lots of small classes, isn't the code less efficient or slower?

1. Speed of the code is not the only concern.
2. Modern compilers can do tricks that reduce much (and sometimes all) of the overhead of calling a method.
3. Even object creation is faster than people think.
4. Even if it is slower, you're not likely to notice it--particularly if there is a database involved.
5. If you're worried about it, profile the code and see.