Benchmark regular loop vs loop with rescue in Ruby

benchmark_result.txt

ruby 2.6.6p146 (2020-03-31 revision 67876) [-darwin23]
Warming up --------------------------------------
        regular loop     2.135k i/100ms
    loop with rescue   193.201k i/100ms
Calculating -------------------------------------
        regular loop     21.215k (± 2.1%) i/s -    106.750k in   5.034189s
    loop with rescue      1.910M (± 3.0%) i/s -      9.660M in   5.062752s

regular_loop_vs_loop_with_rescue.rb

require 'benchmark/ips'

class LoopWithRescue
  def initialize(attempts: 1)
    raise 'attempts must be greater than 0' if attempts.zero? || attempts.negative?

    @attempts = attempts
  end

  def run
    @counter ||= 0

    yield
    raise
  rescue
    @counter += 1

    retry if @counter < @attempts
  end
end

class RegularLoop
  def initialize(attempts: 1)
    raise 'attempts must be greater than 0' if attempts.zero? || attempts.negative?

    @attempts = attempts
  end

  def run
    (1..@attempts).each do
      yield
    end
  end
end

Benchmark.ips do |b|
  n = 1_000
  value1 = RegularLoop.new(attempts: n)
  value2 = LoopWithRescue.new(attempts: n)

  b.report('regular loop') do
    value1.run do
      result = 'echoing'
    end
  end

  b.report('loop with rescue') do
    value2.run do
      result = 'echoing'
    end
  end
end