# Optimal major and minor page faults
**URL:** https://discuss.elastic.co/t/optimal-major-and-minor-page-faults/344838
**Category:** Elasticsearch
**Tags:** elastic-stack-monitoring
**Created:** [October 11, 2023, 4:43pm UTC](https://discuss.elastic.co/t/optimal-major-and-minor-page-faults/344838 "2023-10-11T16:43:54Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@xrkr](https://discuss.elastic.co/u/xrkr)
#### Post date: [October 11, 2023, 4:43pm UTC](https://discuss.elastic.co/t/optimal-major-and-minor-page-faults/344838/1 "2023-10-11T16:43:54Z")
Hello All,
I have a 12 node cluster with 64GB RAM and 31GB heap memory. Often late i am having issues with Elasticsearch performance, i happen to observe that there are major and minor page faults as below.
> ps -ef | grep -E "[e]lastic.\*java" | awk '{print $2}' | xargs -I {} ps -o min\_flt,maj\_flt {} && sleep 60 && ps -ef | grep -E "[e]lastic.\*java" | awk '{print $2}' | xargs -I {} ps -o min\_flt,maj\_flt {}
> MINFL MAJFL
> 185689007 298915
> MINFL MAJFL
> 185717299 298918
> ps -ef | grep -E "[e]lastic.\*java" | awk '{print $2}' | xargs -I {} ps -o min\_flt,maj\_flt {} && sleep 60 && ps -ef | grep -E "[e]lastic.\*java" | awk '{print $2}' | xargs -I {} ps -o min\_flt,maj\_flt {}
> MINFL MAJFL
> 283503608 2427945
> MINFL MAJFL
> 283544632 2428401
> ps -ef | grep -E "[e]lastic.\*java" | awk '{print $2}' | xargs -I {} ps -o min\_flt,maj\_flt {} && sleep 60 && ps -ef | grep -E "[e]lastic.\*java" | awk '{print $2}' | xargs -I {} ps -o min\_flt,maj\_flt {}
> MINFL MAJFL
> 277297674 1118228
> MINFL MAJFL
> 277341921 1118338
and so on.
Could this indicate a problem? CPU, Memory, IOWAIT utilizations are pretty much very low values. Increasing the memory beyond 64GB would help?
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [October 11, 2023, 6:00pm UTC](https://discuss.elastic.co/t/optimal-major-and-minor-page-faults/344838/2 "2023-10-11T18:00:52Z")
What is the full output from the [cluster stats API](https://www.elastic.co/guide/en/elasticsearch/reference/8.10/cluster-stats.html)?
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 8, 2023, 6:01pm UTC](https://discuss.elastic.co/t/optimal-major-and-minor-page-faults/344838/3 "2023-11-08T18:01:47Z")
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