title: What can I use custom CloudWatch metrics for?
body: <p>What can I do by creating custom CloudWatch metrics?
  I couldn't get the idea behind creating custom metrics in CloudWatch after I read the docs.   </p>
  
  <p>I’ve created a new metric:</p>
  
  <pre><code>mon-put-data --metric-name MyMetric --namespace "MyService" --value 2 --timestamp 2011-03-14T12:00:00.000Z  
  </code></pre>
  
  <p>What can I get from this metric?
  I couldn't understand the custom metrics.</p>