title: How to check usage of different parts of memory?
body: <p>I have computer with 2 Intel Xeon CPUs and 48 GB of RAM. RAM is divided between CPUs - two parts 24 GB + 24 GB. How can I check how much of each specific part is used?</p>
  
  <p>So, I need something like <code>htop</code>, which shows how fully each core is used (see <a href="http://3.bp.blogspot.com/_VN8zHqq8Ns8/SxIi11nNPPI/AAAAAAAADNo/o61_3eg9DOU/s1600/htop.png" rel="nofollow">this example</a>), but rather for memory than for cores. Or something that would specify which part (addresses) of memory are used and which are not.</p>