title: What is com.singularity.util.org.apache.log4j.helpers.FileWatchDog
body: <p><br>
  During profiling my app I found that 19% of processing time is taken by some FileWatchDog.run() method: </p>
  
  <p><a href="https://i.stack.imgur.com/oTqO5.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oTqO5.jpg" alt="enter image description here"></a></p>
  
  <p>I understand that this is some piece of log4j, but don't understand why it take so long. What is intention of this method? Is there any way to avoid this?</p>