Yeah, he&#x27;s comparing one of the best optimized ring buffers on the JVM to actual transactions, that&#x27;s one of the worst comparisons I&#x27;ve ever seen. I&#x27;ve shipped large scale systems on .NET and on the JVM, the issues you run into with .NET are that windows isn&#x27;t as easy to administer IMO as linux variants, and your ecosystem isn&#x27;t as strong, that&#x27;s about it.<p>.NET doesn&#x27;t have a runtime profiler that will deoptimize &#x2F; recompile etc., which can cause slowdowns in certain use cases, it does have a better unsafe story, and value types, and reified generics which can make things faster for you.