# Will increasing the number of shards to utilize more CPU and improve performance?

**URL:** <https://discuss.elastic.co/t/will-increasing-the-number-of-shards-to-utilize-more-cpu-and-improve-performance/84868>\
**Category:** Elasticsearch\
**Created:** [May 8, 2017, 3:05am UTC](https://discuss.elastic.co/t/will-increasing-the-number-of-shards-to-utilize-more-cpu-and-improve-performance/84868 "2017-05-08T03:05:05Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![rcowart](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rcowart/32/88091_2.png) [@rcowart](https://discuss.elastic.co/u/rcowart)\
**Post date:** [May 8, 2017, 3:28am UTC](https://discuss.elastic.co/t/will-increasing-the-number-of-shards-to-utilize-more-cpu-and-improve-performance/84868/2 "2017-05-08T03:28:12Z")

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You might want to look at my reply in a recent thread here... [Cluster topology consideration](https://discuss.elastic.co/t/cluster-topology-consideration/83564/5?u=rcowart)

The key point is that you are likely to be limited by disk IO and memory, long before CPU is a concern.

Your indexes are pretty large so index speed will be impacted. If this is time series data you should consider daily (or some other time interval) indexes, which are also discussed in that other thread.

Rob

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