h20 has published a set of benchmarks that shows Julia’s DataFrames.jl has, in general, the worst group-by performance out of many data packages. JuliaDB.jl was not benchmarked so that may be a good addition. I have done some work before on optimising some benchmarks and I’ve been putting it off unt…

Julia performs poorly on group-by benchmarks

Juan December 4, 2018, 12:21pm 5

The benchmarks could be redone with the new dataframes v0.15.

Another good options is