If I remember correct, we had the same results described in article in 2014, but also I remember that linux loopback was optimized after it and different was much smaller if visible
Also, I would like to mentioned that I was impresses how much the Nim is perfect shape with quite small team of core contributors compared to many other languages. There are some bugs, of course. nimsuggest (main thing for LSP) is not in the perfect shape. But I did not have any feelings of unfinished product like Pony-lang, Crystal and etc
Some background: I spent years in C++, then many years in Java, Ocaml, Python, Rust and even APL - everything is for production. My last pet-project was on Rust also, and it took about 2+ years and I felt pretty depressed about IT at all.
One of the part of the project (feed collector) I tried to write in many languages to compare. One day I downloaded Nim - did not expect anything at all - just wanted to try async and ... in about 2 hours (on new language for me) I had the same functionality I spent 2 weeks in Rust. More interesting - it was about 30% faster than Rust solution.
I rewrote full (2 years+) project in Nim in 3 weeks. I understand that I knew good architecture for the second implementation, but 3 weeks is good anyway.
Did a lot of pet-projects, I use it for small prod tools or research if it is possible.
For new Nim's user I would describe it like python with speed of C-lang. But later you will find that it is not another python, it is its own language with a lot of powerful things like templates, macros, very good interop with C (that is why libraries are not a problem most of the time) and etc.
Was linux user/sysadm for years and used a lot of different tools like top, htop, sar and atop, but it was never a tool which is simple and with all values I wanted in my terminal for fast trouble-shooting: no df (atop), or no historical snapshots (top, htop) and etc
So, I decided to take it in my hands and spent few days to create my own ttop
