title: EarlyUpdate.Preloading in Unity profiler
body: <p>I have some performance-related issue with my WebGL unity3d project. For its solution, I am trying to profile my game and found some wired result that <a href="https://docs.unity3d.com/ScriptReference/Experimental.PlayerLoop.EarlyUpdate.UpdatePreloading.html" rel="nofollow noreferrer">EarlyUpdate.UpdatePreloading</a> sometime taking 76% and around 100kb GC allocaion. A brief search showed that it <a href="https://forum.unity.com/threads/loading-updatepreloading-taking-up-precious-time-for-no-reason.252578/" rel="nofollow noreferrer">was a bug</a> but I am using unity 2019.1.0 and it is still showing.
  <a href="https://i.stack.imgur.com/j4808.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/j4808.jpg" alt="enter image description here" /></a></p>
  <p>My question is that is this normal?</p>