title: What is the difference between Thread Local Area (TLA) and Thread Stack Size (Xss)?
body: <p>As i read from:</p>
  
  <p><a href="http://docs.oracle.com/cd/E13150_01/jrockit_jvm/jrockit/geninfo/diagnos/tune_app_thruput.html#wp998772" rel="noreferrer">http://docs.oracle.com/cd/E13150_01/jrockit_jvm/jrockit/geninfo/diagnos/tune_app_thruput.html#wp998772</a></p>
  
  <p>the TLA is: <em>Thread Local Areas (TLAs) are chunks of free memory used for object allocation. The TLAs are reserved from the heap and given to the Java threads on demand, so that the Java threads can allocate objects without having to synchronize with the other Java threads for each object allocation.</em> </p>
  
  <p>I supposed that the Thread Stack area is used for this purpose (and also keep the stuck calls).</p>
  
  <p>What exactly is the difference?</p>