# Estimating search capacity based on search thread count and average query time

**URL:** https://discuss.elastic.co/t/estimating-search-capacity-based-on-search-thread-count-and-average-query-time/86147
**Category:** Elasticsearch
**Created:** [May 17, 2017, 4:40pm UTC](https://discuss.elastic.co/t/estimating-search-capacity-based-on-search-thread-count-and-average-query-time/86147 "2017-05-17T16:40:30Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![PeteyPabPro](https://avatars.discourse-cdn.com/v4/letter/p/eb9ed0/32.png) [@PeteyPabPro](https://discuss.elastic.co/u/PeteyPabPro)
#### Post date: [May 17, 2017, 4:40pm UTC](https://discuss.elastic.co/t/estimating-search-capacity-based-on-search-thread-count-and-average-query-time/86147/1 "2017-05-17T16:40:30Z")

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Hi. Is it valid to get a rough estimate of the search capacity of my cluster using the following calculation?

qps = nodes \* threads/node \* average qps / thread?

For example, if an average query of mine takes 100ms, and i have 3 nodes, each with 49 search threads, my total qps would be approximately 10 \* 49 \* 3 = 1470 qps.

Is this at all a reasonable way to do this estimation?

Thanks!

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<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [June 14, 2017, 4:40pm UTC](https://discuss.elastic.co/t/estimating-search-capacity-based-on-search-thread-count-and-average-query-time/86147/2 "2017-06-14T16:40:31Z")

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