title: What are v8 old space and new space?
body: <p><code>Node.js</code> has two parameters to control memory allocations as I know of:</p>
  
  <p><code>--max_new_space_size</code> and <code>--max_old_space_size</code></p>
  
  <p>What exactly are those mentioned <code>NEW SPACE</code> and <code>OLD SPACE</code> things?</p>