# Is it possible to measure I/O by index? **URL:** \ **Category:** Elasticsearch\ **Created:** [December 13, 2016, 2:40pm UTC](https://discuss.elastic.co/t/is-it-possible-to-measure-i-o-by-index/68882 "2016-12-13T14:40:10Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![pshroads](https://avatars.discourse-cdn.com/v4/letter/p/a88e57/32.png) [@pshroads](https://discuss.elastic.co/u/pshroads)\ **Post date:** [December 13, 2016, 2:40pm UTC](https://discuss.elastic.co/t/is-it-possible-to-measure-i-o-by-index/68882/1 "2016-12-13T14:40:10Z")
I'd like to be able to measure the load on the cluster by index. Is this possible? Or is it even possible on a particular node to see which indexes are generating the most load (I/O, cpu, JVM, etc.) Thanks ---
**Author:** ![nik9000](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nik9000/32/44947_2.png) [@nik9000](https://discuss.elastic.co/u/nik9000)\ **Post date:** [December 13, 2016, 3:03pm UTC](https://discuss.elastic.co/t/is-it-possible-to-measure-i-o-by-index/68882/2 "2016-12-13T15:03:12Z")
You can't measure the IO per index easily. Have a look at the [index stats](https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-stats.html) for some stats that we can measure. Mostly it is "time spent" measurements which doesn't tell if the time is spent waiting for information to be pages into memory or what. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 10, 2017, 3:03pm UTC](https://discuss.elastic.co/t/is-it-possible-to-measure-i-o-by-index/68882/3 "2017-01-10T15:03:21Z")
Closed on January 10, 2017, 3:03pm UTC This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.