rbench ====== == What is RBench? Library for generating nice ruby-benchmarks in several formats. Only text-output is available atm. Heavily inspired by benchwarmer. Much love. == Usage require "rubygems" require "rbench" # Choose how many times you want to repeat each benchmark. # This can be overridden on specific reports, if needed. TIMES = 100_000 # A relatively simple benchmark: RBench.run(TIMES) do column :one column :two report "Squeezing with #squeeze" do one { "abc//def//ghi//jkl".squeeze("/") } two { "abc///def///ghi///jkl".squeeze("/") } end report "Squeezing with #gsub" do one { "abc//def//ghi//jkl".gsub(/\/+/, "/") } two { "abc///def///ghi///jkl".gsub(/\/+/, "/") } end report "Splitting with #split" do one { "aaa/aaa/aaa.bbb.ccc.ddd".split(".") } two { "aaa//aaa//aaa.bbb.ccc.ddd.eee".split(".") } end report "Splitting with #match" do one { "aaa/aaa/aaa.bbb.ccc.ddd".match(/\.([^\.]*)$/) } two { "aaa//aaa//aaa.bbb.ccc.ddd.eee".match(/\.([^\.]*)$/) } end end # The benchmark above will output the following: ONE | TWO | -------------------------------------------------------------------------------- Squeezing with #squeeze 0.122 | 0.118 | Squeezing with #gsub 0.274 | 0.271 | Splitting with #split 0.349 | 0.394 | Splitting with #match 0.238 | 0.291 | # Now onto a benchmark that utilizes a some more stiff. RBench.run(TIMES) do format :width => 65 column :times column :one, :title => "#1" column :two, :title => "#2" column :diff, :title => "#1/#2", :compare => [:one,:two] group "Squeezing" do report "with #squeeze" do one { "abc//def//ghi//jkl".squeeze("/") } two { "abc///def///ghi///jkl".squeeze("/") } end report "with #gsub" do one { "abc//def//ghi//jkl".gsub(/\/+/, "/") } two { "abc///def///ghi///jkl".gsub(/\/+/, "/") } end summary "all methods (totals)" end group "Splitting" do report "with #split" do one { "aaa/aaa/aaa.bbb.ccc.ddd".split(".") } two { "aaa//aaa//aaa.bbb.ccc.ddd.eee".split(".") } end report "with #match", TIMES / 100 do one { "aaa/aaa/aaa.bbb.ccc.ddd".match(/\.([^\.]*)$/) } two { "aaa//aaa//aaa.bbb.ccc.ddd.eee".match(/\.([^\.]*)$/) } end end end # The benchmark above will output the following: | #1 | #2 | #1/#2 | --Squeezing------------------------------------------------------ with #squeeze x100000 | 0.122 | 0.117 | 1.04x | with #gsub x100000 | 0.267 | 0.279 | 0.96x | all methods (totals) | 0.390 | 0.396 | 0.98x | --Splitting------------------------------------------------------ with #split x100000 | 0.341 | 0.394 | 0.87x | with #match x1000 | 0.002 | 0.003 | 0.82x |