title: How to see Linux' view of the RAM in order to determinate the fragmentation
body: <p>The only program relevant I know of is <code>pmap</code>, but this only prints the memory of one process.</p>
  
  <p>I would like to see how the <strong>physical memory</strong> is occupied and by which processes/library, including the kernel, of the entire physical RAM (as opposed to that from the process' POV with <code>pmap</code>).</p>
  
  <p>Ideally also with a graphical interface.</p>
  
  <p>Do you know if there's any such tool?</p>
  
  <p>I know about the ambiguity introduced by libraries. If it's the case, it could display a 1-pixel wide line and an arrow to the real location of that library.</p>
  
  <p>What do I need this for? To view the RAM fragmentation.</p>