The performance improvements that Ben Adams and other ASP.NET Core contributors have made haven't been Windows specific for the most part. Personally, I do most of my perf testing on Windows, but that doesn't mean Linux is completely left out.

Last month, I did some Linux profiling in our perf lab. As part of that, I ran the exact same benchmark shown in that graph on the exact same equipment and got over double the RPS numbers we got back in November much like we did on Windows.

I just updated the https://github.com/aspnet/benchmarks/ repo with the linux numbers I got last month since Ben's blog post has brought some increased attention to it. We plan to do a more complete benchmark run soon so we can update more numbers.