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by compilerdev 2894 days ago
Not to take anything away from this, it's great that such a tool is available, but Microsoft had this kind of technology 20 years ago, known as BBT - still used in some places, but overall systems moved to profile guided optimizations done by Visual C++ (an overall improvement over BBT). It is mostly focused on doing block/function placement optimizations to reduce paging and separate hot/cold code. Some info here: https://blogs.msdn.microsoft.com/reiley/2011/08/06/microsoft....