# High CPU usage in facet query **URL:** \ **Category:** Elasticsearch\ **Created:** [September 23, 2015, 5:34am UTC](https://discuss.elastic.co/t/high-cpu-usage-in-facet-query/29823 "2015-09-23T05:34:06Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![JMDTarun](https://avatars.discourse-cdn.com/v4/letter/j/f475e1/32.png) [@JMDTarun](https://discuss.elastic.co/u/JMDTarun)\ **Post date:** [September 23, 2015, 5:34am UTC](https://discuss.elastic.co/t/high-cpu-usage-in-facet-query/29823/1 "2015-09-23T05:34:07Z")
Hi, I am running a facet query and I have 2m docs indexed, when I am doing load testing (15 queries per second) then cpu usage is 400% and response time also increases. Setup 4 nodes on a single machine with 1gb ram assigned to each node. Here is the query that I am firing { "size": 0, "query": { "range": { "TOTAL\_SCORE": { "gte": 0 } } }, "facets": { "f": { "terms": { "field": "TOTAL\_SCORE", "size": 10000 } } } } Can any one suggest what's going wrong over here. ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [September 23, 2015, 7:20am UTC](https://discuss.elastic.co/t/high-cpu-usage-in-facet-query/29823/2 "2015-09-23T07:20:48Z")
I'd suggest moving to or trying aggs, they are a lot more efficient. ---
**Author:** ![JMDTarun](https://avatars.discourse-cdn.com/v4/letter/j/f475e1/32.png) [@JMDTarun](https://discuss.elastic.co/u/JMDTarun)\ **Post date:** [September 23, 2015, 7:29am UTC](https://discuss.elastic.co/t/high-cpu-usage-in-facet-query/29823/3 "2015-09-23T07:29:04Z")
Thanks Warkolm, But I have tried that also but I have not find any significant performance gain, cpu still shoots out. ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [September 23, 2015, 7:45am UTC](https://discuss.elastic.co/t/high-cpu-usage-in-facet-query/29823/4 "2015-09-23T07:45:36Z")
Maybe try with a single node at 4GB ram then, 1Gb isn't much heap for ES to work with. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 11:48pm UTC](https://discuss.elastic.co/t/high-cpu-usage-in-facet-query/29823/5 "2017-07-05T23:48:33Z")