prelude: | require 'rover' require 'red_amber' penguins_csv = 'benchmark/cache/penguins.csv' unless File.exist?(penguins_csv) require 'datasets-arrow' arrow = Datasets::Penguins.new.to_arrow RedAmber::DataFrame.new(arrow).save(penguins_csv) end benchmark: 'penguins by Rover': Rover.read_csv(penguins_csv) 'penguins by RedAmber': RedAmber::DataFrame.load(penguins_csv)