While experimenting with very heavily templated C++ code, i noticed that using an "Unity build" (creating a single cpp file that includes everything and building it in a single CU) reduce the compilation time by a lot.
I got a 10x improvement for my 15kloc project without touching the code.

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While experimenting with very heavily templated C++ code, i noticed that using an "Unity build" (creating a single cpp file that includes everything and building it in a single CU) reduce the compilation time by a lot.
I got a 10x improvement for my 15kloc project without touching the code.