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In Technical Report on C++ Performance there are a lot of tables that compare different implementations of C++. Unfortunately nothing is said about an OS and compiler used. I wonder if this information is available unofficially or at least can be inferred out of the technical report itself.
From page 23 in the report: “Most comments about run-time costs are based on a set of simple measurements performed on three different machine architectures using six different compilers run with a variety of optimization options. Each test was run multiple times to ensure that the results were repeatable. The code is presented in Appendix D:. The aim of these measurements is neither to get a precise statement of optimal performance of C++ on a given machine nor to provide a comparison between compilers or machine architectures. Rather, the aim is to give developers a view of relative costs of common language constructs using current compilers, and also to show what is possible (what is achieved in one compiler is in principle possible for all).”
So I guess if you really want to know, you could ask the report’s authors.