# Visualize garbage-collection-stats with moving average

**URL:** <https://discuss.elastic.co/t/visualize-garbage-collection-stats-with-moving-average/203878>\
**Category:** Kibana\
**Created:** [October 16, 2019, 3:49pm UTC](https://discuss.elastic.co/t/visualize-garbage-collection-stats-with-moving-average/203878 "2019-10-16T15:49:07Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rmy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rmy/32/12384_2.png) [@rmy](https://discuss.elastic.co/u/rmy)\
**Post date:** [October 16, 2019, 3:49pm UTC](https://discuss.elastic.co/t/visualize-garbage-collection-stats-with-moving-average/203878/1 "2019-10-16T15:49:08Z")

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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.

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**Author:** ![lukas](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas/32/6812_2.png) [@lukas](https://discuss.elastic.co/u/lukas)\
**Post date:** [October 16, 2019, 5:22pm UTC](https://discuss.elastic.co/t/visualize-garbage-collection-stats-with-moving-average/203878/2 "2019-10-16T17:22:17Z")

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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?

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**Author:** ![rmy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rmy/32/12384_2.png) [@rmy](https://discuss.elastic.co/u/rmy)\
**Post date:** [October 21, 2019, 7:33am UTC](https://discuss.elastic.co/t/visualize-garbage-collection-stats-with-moving-average/203878/3 "2019-10-21T07:33:03Z")

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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.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 18, 2019, 7:33am UTC](https://discuss.elastic.co/t/visualize-garbage-collection-stats-with-moving-average/203878/4 "2019-11-18T07:33:06Z")

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