benchmark between if and rescue

if_rescure.rb

def nil.hello world
  world
end

def method_rescue o
  begin
    nil.send(:hello)
  rescue
  end
end

def method_if o
  if o == :hello
    eval "@ar.hello 'world'"
  end
end


require 'benchmark'
SIZE = 1_000
Benchmark.bm do |x|
  x.report("rescue") { SIZE.times { method_rescue :format } }
  x.report("if    ") { SIZE.times { method_if :format } }
end


__END__
the output of result is

        user       system     total      real
rescue  0.010000   0.000000   0.010000   (  0.013275)
if      0.000000   0.000000   0.000000   (  0.000334)