When I talk about hpc, I don’t talk about a script in Matlab. I talk about the work you do on supercomputers, real computing intensive jobs that takes weeks or months on hundreds or thousands of processors. I guess you don’t find benchmarks simply because no one uses windows, same reason you probably don’t find a fiat panda in the Nürburgring rankings.
You don’t really need to tune the operating system, you just need a good one. The hpc crowd has a pretty unique perspective. You won’t find anyone doing any real hpc on windows, not even Microsoft