Unity editor extension which tracks compile time.
How do you optimize compile time? Read This!
Clone the git repository and add the CompileTimeTracker folder to your Unity project.
Tested on Unity 5.0.0 and above. Might work on Unity 4, but haven’t checked it out yet.
Compile time is logged automatically to console and recent compile times can be viewed in the tracker window (Window -> Compile Time Tracker Window)
It also attempts to detect errors by comparing the number of error logs before compiling + after compiling, but it’s not completely accurate as some code will cause errors logs during [InitializeOnLoad] or OnValidate calls.