gsub! leak-test

gistfile1.rb

SYMBOLS = ("a".."z").to_a
srand
def rand_word(len = 10)
  SYMBOLS.sort_by { |_1,_2| rand <=> 0.5 }[0..(len-1)].join
end

was_affected = false
value = "some kind of initial value"
array_for_bulk_find_and_replace = (0..100_000).to_a.map { |c| [rand_word(3), rand_word(3)] }
array_for_bulk_find_and_replace.each_with_index do |replace_pair, i|
  reg_val = replace_pair[0].to_s
  was_affected |= "" != value.gsub!(/#{reg_val}/, replace_pair[1].to_s)
  if 0 == (i+1) % 1000
    puts %x{ps -p #{Process.pid} -o %mem,rss}
  end
end

puts value