title: jvm on multicore
body: <p>I've read a blog post a while ago claiming a Java application ran better when it was allowed to utilize a single cpu in a multicore machine: <a href="http://mailinator.blogspot.com/2010/02/how-i-sped-up-my-server-by-factor-of-6.html" rel="noreferrer">http://mailinator.blogspot.com/2010/02/how-i-sped-up-my-server-by-factor-of-6.html</a></p>
  
  <p>What reasons could there be for a Java application, running on multicore machines to run much slower than on a single core machine? </p>