title: How to compare the efficiency of two different algorithms written in different language?
body: <p>I know we can compare the time complexity of two algorithms by analysis. But know I want to evaluate them by real data. But unfortunately, they are written in different language. Since different language themselves have different efficiency, is it possible to compare the efficiency of two algorithms written in different efficiency?</p>
  
  <p>For example, I have two sorting algorithms. One written in C and another in Java. It's unfair to compare their running time because C and Java have different efficiency. Is it possible to compare them fairly? Maybe a way to unify the unit for an operation?</p>
  
  <p>I don't want to rewrite any algorithm because both of them have more than 10 thousand lines.</p>