title: How well does Scala perform compared to Java?
body: <p>The Question actually says it all. </p>
  
  <p>The reason behind this question is I am about to start a small side project and want to do it in <code>Scala</code>. I am learning scala for the past one month and now I am comfortable working with it. The scala compiler itself is pretty slow (unless you use <code>fsc</code>). So how well does it perform on JVM? I previously worked on groovy and I had seen sometimes over performed than java. My Question is how well scala perform on JVM compared to Java. I know <code>scala</code> has some very good features(FP, dynamic lang, statically typed...) but end of the day we need the performance... </p>