Make VC++ Compiles Fast Through Parallel Compilation
Random ASCII always writes brilliant in-depth analyses!
The free lunch is over and our CPUs are not getting any faster so if you want faster builds then you have to do parallel builds. Visual Studio supports parallel compilation but it is poorly understood and often not even enabled.
I want to show how, on a humble four-core laptop, enabling parallel compilation can give an actual four-times build speed improvement. I will also show how to avoid some of the easy mistakes that can significantly reduce VC++ compile parallelism and throughput. And, as a geeky side-effect, I’ll explain some details of how VC++’s parallel compilation works.
Plus, pretty pictures.
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Alexander Riccio 