title: How to understand the Full GC log?
body: <p>I currently see in PROD the following:</p>
  
  <pre><code>5429.779: [Full GC [PSYoungGen: 13809K-&gt;0K(505216K)] [PSOldGen: 253802K-&gt;245481K(319488K)] 267612K-&gt;245481K(824704K) [PSPermGen: 70059K-&gt;70059K(118784K)], 0.5869143 secs] [Times: user=0.59 sys=0.00, real=0.59 secs]
  </code></pre>
  
  <p>I understand that A->B(C) means: A, before gc, B after gc, C heap without tenured and perm</p>
  
  <p>What I don't understand is piece (outside all []s) which is <code>267612K-&gt;245481K(824704K)</code>. What does it refer to?</p>