direct    1000000   0.481456
    direct    1000000   0.481231
    direct    1000000   0.481095

   forloop    1000000   0.825039
   forloop    1000000   0.823387
   forloop    1000000   0.823322

 yieldfrom    1000000   0.514569
 yieldfrom    1000000   0.514748
 yieldfrom    1000000   0.512302

Delegation overhead = 9.5% of for-loop