I'm thinking of something automated. For example, it's possible to gather some metrics of the usage of libraries from a running process (with strace, google pe

I'm thinking of something automated. For example, it's possible to gather some metrics of the usage of libraries from a running process (with strace, google perftools, source maps in javascript...). It can be a process used by a real user or autotests from the project. A software could monitor those probes and allow the user to reward the dependencies that: - use less CPU or energy - use less memory - contains less bugs - ...