# A couple Marvel Overview Q - How CPU and Memory for a Cluster are calculated **URL:** \ **Category:** Elasticsearch\ **Created:** [January 31, 2014, 11:03pm UTC](https://discuss.elastic.co/t/a-couple-marvel-overview-q-how-cpu-and-memory-for-a-cluster-are-calculated/15541 "2014-01-31T23:03:32Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Tony\_Su](https://avatars.discourse-cdn.com/v4/letter/t/8dc957/32.png) [@Tony\_Su](https://discuss.elastic.co/u/Tony_Su)\ **Post date:** [January 31, 2014, 11:03pm UTC](https://discuss.elastic.co/t/a-couple-marvel-overview-q-how-cpu-and-memory-for-a-cluster-are-calculated/15541/1 "2014-01-31T23:03:32Z")
Hello, Have posted a screenshot of Marvel on my demo cluster [https://github.com/putztzu/Misc\_images/blob/master/marvel\_only.png](https://github.com/putztzu/Misc_images/blob/master/marvel_only.png) FYI Configuration All nodes running on openSUSE 13.1/openjdk1.7 (On a single machine running VMware) ES-Marvel-openSUSE ES-LogstasthIndexer-Redis-LogstashShipper(ApacheParse)-netcat ELASTICSEARCH-1 ES ELASTICSEARCH-2 ES ELASTICSEARCH-3 ES ELASTICSEARCH-4 ES Questions I have about what Marvel is displaying Cluster Summary 1. CPU usage of a cluster is interesting, is it an aggregate of cluster CPU resources, and is it supposed to be a realtime snaphot or mean/median/average/something else? 2. Memory, similar Q to (1). Is this the aggregated cluster resources, total available and used, and is it current, peak or something else? Thx, Tony -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/85f6036a-1d85-4418-83a1-66ab95a415d9%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/85f6036a-1d85-4418-83a1-66ab95a415d9%40googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![Boaz\_Leskes](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/boaz_leskes/32/723_2.png) [@Boaz\_Leskes](https://discuss.elastic.co/u/Boaz_Leskes)\ **Post date:** [February 2, 2014, 8:12am UTC](https://discuss.elastic.co/t/a-couple-marvel-overview-q-how-cpu-and-memory-for-a-cluster-are-calculated/15541/2 "2014-02-02T08:12:01Z")
Hi Tony, The cluster summary shows a snapshot of the cluster, taken every 5 second. The CPU numer is the total cpu usage of all the ES processes (100% == one core). Memory is the total memory used by the JVM nodes & the total memory available to them. Cheers, Boaz On Saturday, February 1, 2014 12:03:32 AM UTC+1, Tony Su wrote: > Hello, > Have posted a screenshot of Marvel on my demo cluster > [https://github.com/putztzu/Misc\_images/blob/master/marvel\_only.png](https://github.com/putztzu/Misc_images/blob/master/marvel_only.png) > > FYI Configuration > All nodes running on openSUSE 13.1/openjdk1.7 > (On a single machine running VMware) > ES-Marvel-openSUSE > ES-LogstasthIndexer-Redis-LogstashShipper(ApacheParse)-netcat > ELASTICSEARCH-1 ES > ELASTICSEARCH-2 ES > ELASTICSEARCH-3 ES > ELASTICSEARCH-4 ES > > Questions I have about what Marvel is displaying > > Cluster Summary > > 1. CPU usage of a cluster is interesting, is it an aggregate of cluster > CPU resources, and is it supposed to be a realtime snaphot or > mean/median/average/something else? > > 2. Memory, similar Q to (1). Is this the aggregated cluster resources, > total available and used, and is it current, peak or something else? > > Thx, > Tony -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/e3986543-cb52-4807-b756-35ecb286720b%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e3986543-cb52-4807-b756-35ecb286720b%40googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 1:53am UTC](https://discuss.elastic.co/t/a-couple-marvel-overview-q-how-cpu-and-memory-for-a-cluster-are-calculated/15541/3 "2017-07-06T01:53:24Z")