It turned out that there were lots of unnecessary accessor functions being called locking and unlocking the cond which are not needed because Wait() automatically unlocks and locks the cond for us and best practice says we should run it in a for checking for the condition (so this is what I have done).
Kubernetes-commit: 2b12df56b0be93bc2cac7c5a66342c0ffaa72311
Problem:
When calling newQueue metrics can be of type noMetrics when just calling
New. When doing this a new goroutine is created to update the metrics
but in this case there are no metrics so it's just creating goroutines
that don't do anything but consume resources.
Solution:
If the incoming metrics is of type noMetrics, don't start the goroutine
Kubernetes-commit: de021396f81ff438899297a6f464c70113b58475
