GDOv7 does report own Metrics to the clients.
There is the core module Module_Perf to provide these.
For HTTP, there are X-GDO-* headers on every request served by GDOv7; Memory and Timing information is availble there.
@TODO: What about CLI/Chat performance metrics?
@TODO add profiler instructions. Create a repo with qkachgrind binaries for easy windows setup.
@TODO research code coverage tools. Write a module to aid with cc.