require 'benchmark'

def ifelse
  if true
    1
  else
    2
  end
end

def raiserescue
  begin
    raise
  rescue
    2
  end
end

Benchmark.bm do |x|
  x.report("if/else     ") { 10_000.times { ifelse } }
  x.report("raise/rescue") { 10_000.times { raiserescue } }
end