require "benchmark"

string_hash = {}
symbol_hash = {}

(0..50000).map do |i|
  string_hash["key_#{i}"] = i
  symbol_hash[:"key_#{i}"] = i
end

string_accessors = Array.new(100000) { "key_#{rand(50000)}" }
symbol_accessors = Array.new(100000) { :"key_#{rand(50000)}" }

Benchmark.bm do |x|
  x.report("strings") { string_accessors.each { |a| string_hash[a] } }
  x.report("symbols") { symbol_accessors.each { |a| symbol_hash[a] } }
  x.report("strings, set") { string_accessors.each { |a| string_hash[a] = a } }
  x.report("symbols, set") { symbol_accessors.each { |a| symbol_hash[a] = a } }
end