title: node.js 0.12.x memory usage
body: <p>Trying to upgrade my application from node 0.10.x to node 0.12.x family, I was hit with an unpleasant surprise: 0.12 uses about 15%-20% more RAM than 0.10.</p>
  
  <p>Judging by a <a href="https://github.com/iojs/io.js/issues/823">few</a> <a href="https://github.com/iojs/io.js/issues/856">threads</a> on io.js issues page, it seems the fault lies with the underlying v8 engine.</p>
  
  <p>Now software update is a difficult proposition to sell to management as it is. Add to that the need to pay for more VPS hardware with few visible benefits, and this becomes a deal breaker for us.</p>
  
  <p>Is there a way to disable whatever new bells &amp; whistles v8 had added that are taking up the additional RAM? Perhaps the touted CPU profiling stuff?</p>
  
  <p>I'm basically looking for a v8 switch that can reduce memory usage to the level comparable to the v8 shipped with node 0.10.</p>