The author claims to have written an implementation of it themselves.
From the article:
> This last one is my implementation of Google’s new hash table. Google hasn’t open-sourced their hash table yet, so I had to implement their hash table myself. I’m 95% sure that I got their performance right.
It is not open sourced yet but a presentation was given in cppcon17
Here: https://m.youtube.com/watch?v=ncHmEUmJZf4
Recommended watch. Matt is a fun presenter.
But ... how does it appear in the benchmarks of this article?
The author claims to have written an implementation of it themselves.
From the article:
> This last one is my implementation of Google’s new hash table. Google hasn’t open-sourced their hash table yet, so I had to implement their hash table myself. I’m 95% sure that I got their performance right.