title: What's the unit of RSS in psutil.Process.get_memory_info?
body: <p>When I use <code>ps -o pid,rss -p 1</code>, I see the following:</p>
  
  <pre><code>PID RSS
    1 784
  </code></pre>
  
  <p>But when I query for <code>rss</code> with <code>psutil</code>, I get a different value:</p>
  
  <pre><code>&gt;&gt;&gt; p = psutil.Process(1)
  &gt;&gt;&gt; print p.get_memory_info().rss
  802816
  </code></pre>
  
  <p>Is it possible that <code>psutil</code> uses a different unit?
  I can't find any related information in the <a href="https://code.google.com/p/psutil/wiki/Documentation#Classes" rel="noreferrer">documentation</a>.</p>