title: High memory usage for Gitlab CE
body: <p>Look at this picture showing gitlab ce memory consumption.
  <a href="https://i.stack.imgur.com/Ha1VP.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Ha1VP.png" alt="gitlab ce memory consumption"></a></p>
  
  <p>I really dont need all of those workers, sidekiq or unicorn or all of those daemon. This is on IDLE. I mean, I installed this to manage 1 project, with like 4 people, I dont need all those daemon. Is there any way to reduce this ? </p>