title: Eclipse performance tuning for multiple CPUs and lots of memory?
body: <p>I have a dual quad core machine with 12 Gigs of memory on which I run eclipse, does anyone know what JVM Options will give the most responsive / performant experience?</p>
  
  <p>I am currently running:</p>
  
  <p>-Xms256m
  -Xmx2048m
  -Xss2m
  -XX:PermSize=128m
  -XX:MaxPermSize=384m</p>
  
  <p>Would changing -Xmx to 4096 give better performance? Or is there some point when more memory will deteriorate performance?</p>
  
  <p>Also can I have a garbage collector running on a separate core to stop lags in the UI during GC?</p>