# CPU Throttling

**URL:** <https://discuss.elastic.co/t/cpu-throttling/116392>\
**Category:** Elasticsearch\
**Created:** [January 21, 2018, 4:37pm UTC](https://discuss.elastic.co/t/cpu-throttling/116392 "2018-01-21T16:37:46Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Karl\_Stoney](https://avatars.discourse-cdn.com/v4/letter/k/76d3ee/32.png) [@Karl\_Stoney](https://discuss.elastic.co/u/Karl_Stoney)\
**Post date:** [January 21, 2018, 4:37pm UTC](https://discuss.elastic.co/t/cpu-throttling/116392/1 "2018-01-21T16:37:46Z")

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Hi All,  
I'm trying to understand why my master nodes are reporting CPU throttling? I've had a good google but can't find any guidance at all.

They are master and ingest nodes, we have separate data nodes, we're doing circa 10,000 docs/second. They don't look CPU or IO constrained, so I'm not sure if this is something I should be worried about?

 ![33](https://us1.discourse-cdn.com/elastic/original/3X/4/b/4b7c1fb58ea34fe1094ffcc62e56cec1cc5146ff.png)

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**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:** [January 21, 2018, 7:07pm UTC](https://discuss.elastic.co/t/cpu-throttling/116392/2 "2018-01-21T19:07:26Z")

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Where is is reporting throttling?

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**Author:** ![Karl\_Stoney](https://avatars.discourse-cdn.com/v4/letter/k/76d3ee/32.png) [@Karl\_Stoney](https://discuss.elastic.co/u/Karl_Stoney)\
**Post date:** [January 21, 2018, 7:20pm UTC](https://discuss.elastic.co/t/cpu-throttling/116392/3 "2018-01-21T19:20:24Z")

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Sorry, does the screenshot not load for you?  
Basically under the kibana health dashboard, my "master" nodes all report a certain amount of "CPU throttling", my data nodes don't.

I don't see anything in the ES logs, just on this dashboard - making it unclear to me if it's something I need to worry about.

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**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:** [January 23, 2018, 6:41pm UTC](https://discuss.elastic.co/t/cpu-throttling/116392/4 "2018-01-23T18:41:32Z")

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There's no throttle metric in that image though is there?

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<div class="post-metadata">

**Author:** ![Karl\_Stoney](https://avatars.discourse-cdn.com/v4/letter/k/76d3ee/32.png) [@Karl\_Stoney](https://discuss.elastic.co/u/Karl_Stoney)\
**Post date:** [January 27, 2018, 5:28pm UTC](https://discuss.elastic.co/t/cpu-throttling/116392/5 "2018-01-27T17:28:17Z")

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Yup the second column (top row is 5.8m ns)

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 24, 2018, 5:28pm UTC](https://discuss.elastic.co/t/cpu-throttling/116392/6 "2018-02-24T17:28:57Z")

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