I believe the design is similar because Google presented the SwissTable design more than a year ago in CppCon [1]. If I'm reading the link you sent correctly,

I believe the design is similar because Google presented the SwissTable design more than a year ago in CppCon [1]. If I'm reading the link you sent correctly, then there was an initial bias in the benchmarks that favored F14, but after adjusting for that, the results are similar (not surprising since the basic idea is the same.) [1] https://www.youtube.com/watch?v=ncHmEUmJZf4 https://www.youtube.com/watch?v=ncHmEUmJZf4