Visualize garbage-collection-stats with moving average

[rmy (Runar Myklebust)]

Hi.

I have access to some simple jvm.gc-stats:
|collectionTime|368177|
|collectionCount|23869|

I would like to create a timeline where i get, for a period - e.g 15 seconds, the number of counts done (deltaCount), the times spent in GC ( delteCollectionTime) and the average "deltaCollectionTime / deltaCount"

Is this possible? I cannot find any good examples on CG-visualizations, but please point me to examples if possible.

[lukas (Lukas Olson)]

So, are you saying you want to sum collectionTime and divide it by the sum of collectionCount to get an overall average of time/collection?

[rmy (Runar Myklebust)]

Hi.

The point of this visualization would be to indicate heavy garbage-collect patterns, and correlate them against other metrics/log-events.

Ideally I would like to get the number of gc-invocations and time-spent-in-gc for a (predefined?) period, e.g last minute, last 30 seconds, etc.