Does Boost have any runtime perf tests? We (MSVC) are looking for something that uses modern C++, which would reveal areas where our optimizer and libraries could be improved.
I've just recently reworked the Math lib performance tests - all floating point stuff of course so may or may not be what you're looking for ;) See the libs/math/reporting/performance directory in develop, can produce reports such as: https://rawgit.com/boostorg/math/develop/reporting/performance/html/index.ht..., you may wish to investigate ::tgamma by the looks of things (see https://rawgit.com/boostorg/math/develop/reporting/performance/html/index.ht...), on the other hand, congratulations on yn ;) There are also performance tests for multiprecision under libs/multiprecision/performance. No nice tables this time :( However, the library does use noexcept and constexpr quite a bit. Whether the differences those make are detectable compared to the algorithmic overheads is debatable. HTH, John.