title: Why Plot of RabbitMq rabbitmq_queue_consumer_utilisation is reversed?
body: <p>While viewing RabbitMQ Grafana Plot for Consumer utilisation I am seeing inverted graph but all other graph Such as (rabbitmq_queue_messages, rabbitmq_queue_messages_ram)
  indicate that performance at the left hand graph is better (2x). How it is so.</p>
  <p>as per <a href="https://github.com/rabbitmq/rabbitmq-prometheus/blob/master/metrics.md" rel="nofollow noreferrer">articles</a> and <a href="https://blog.rabbitmq.com/posts/2014/04/finding-bottlenecks-with-rabbitmq-3-3/" rel="nofollow noreferrer">RabbitMq Docs</a> Higher consumer utilization is better. Why the graph is coming be different For <strong>consumer utilization</strong></p>
  <p>Pls suggest.</p>
  <p><strong>Edit:</strong>
  The <a href="https://stackoverflow.com/questions/32563873/what-is-consumer-utilisation-in-rabbitmq-and-how-does-it-relate-to-prefetch-c">definition of consumer utilization</a> is the proportion of time that a queue's consumers could take new messages.
  for same message push rate. (e.g. 1per second) Is it so that
  Low consumer utilization means queue is more efficient?</p>
  <p><a href="https://i.stack.imgur.com/wFw0p.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wFw0p.png" alt="2x improvement Graph Left is better" /></a></p>
  <p><a href="https://i.stack.imgur.com/CkVZs.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CkVZs.png" alt="consumer utilization Graph is reversed" /></a></p>