If by “warm up” you refer to JIT’ing then yes – if a method is never called it won’t have been compiled yet, so the very first time you run it it might be slower.
Also refer to Does the .NET CLR JIT compile every method, every time?
If by “warm up” you refer to JIT’ing then yes – if a method is never called it won’t have been compiled yet, so the very first time you run it it might be slower.
Also refer to Does the .NET CLR JIT compile every method, every time?