I am using x-pack monitoring and reviewing the charts that come with them in Kibana. Specifically I am trying to understand the GC Count and GC Duration charts and their relationship to the JVM Heap one. While JVM heap is exhibiting a saw tooth pattern, I see high numbers in GC Duration. Not sure if the GC Count numbers are high as my workload is a new one.
Is the GC Duration the amount of time spent concurrent with the tasks finding pages that will later be collected in one of the Clean and Sweep "stop the world" events? It does not seem to correlate directly to the JVM sawtooth but is partially correlating to my CPU use.
Any guidance or links to explanations one what this data is would be greatly appreciatied.