# CPU Usage doesn't come for 100%

**URL:** <https://discuss.elastic.co/t/cpu-usage-doesnt-come-for-100/71943>\
**Category:** Beats\
**Tags:** metricbeat\
**Created:** [January 18, 2017, 7:09am UTC](https://discuss.elastic.co/t/cpu-usage-doesnt-come-for-100/71943 "2017-01-18T07:09:15Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![prakash1243](https://avatars.discourse-cdn.com/v4/letter/p/35a633/32.png) [@prakash1243](https://discuss.elastic.co/u/prakash1243)\
**Post date:** [January 18, 2017, 7:09am UTC](https://discuss.elastic.co/t/cpu-usage-doesnt-come-for-100/71943/1 "2017-01-18T07:09:15Z")

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Hi -  
We are tying to run the Metric beat on a Windows server for every 10 Millie seconds (0.01s). We wanted to know how much Metricbeat service would consume the CPU usage. We ran it for few hours and checked the CPU, shows as below:

![](https://us1.discourse-cdn.com/elastic/original/2X/9/9d068abf8f657e3690ce5a0030328b86defbd2da.jpg)

But, the above over all percentage doesn't come for 100%, was wondering how did this happen. Could you please let me know, Thanks !

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**Author:** ![JKhondhu](https://avatars.discourse-cdn.com/v4/letter/j/ed655f/32.png) [@JKhondhu](https://discuss.elastic.co/u/JKhondhu)\
**Post date:** [January 19, 2017, 2:08pm UTC](https://discuss.elastic.co/t/cpu-usage-doesnt-come-for-100/71943/2 "2017-01-19T14:08:47Z")

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The elastic \*beats are built with low resources in mind. Could you explain more the question you have?

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**Author:** ![prakash1243](https://avatars.discourse-cdn.com/v4/letter/p/35a633/32.png) [@prakash1243](https://discuss.elastic.co/u/prakash1243)\
**Post date:** [January 20, 2017, 3:58am UTC](https://discuss.elastic.co/t/cpu-usage-doesnt-come-for-100/71943/3 "2017-01-20T03:58:31Z")

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Hi @JKhondhu:

We triggered Metricbeats for every 0.01 second (1 mille second), and got the average of CPU usage as above screenshot for 4 hours.

Usually, CPU over all usage adds up to 100% (system, user, idle) right? , but the over all CPU usage comes less than 80% when Metricbeats runs for every milli second? what could be the reason ?

Please let me know if am still unclear. Thanks !

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**Author:** ![JKhondhu](https://avatars.discourse-cdn.com/v4/letter/j/ed655f/32.png) [@JKhondhu](https://discuss.elastic.co/u/JKhondhu)\
**Post date:** [January 20, 2017, 4:47pm UTC](https://discuss.elastic.co/t/cpu-usage-doesnt-come-for-100/71943/4 "2017-01-20T16:47:54Z")

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Hi, I believe your understanding of the overall count being equal to 100% is actually not correct. Each will be out of its own 100%. Please see this Metricbeat system fields reference: [https://www.elastic.co/guide/en/beats/metricbeat/current/exported-fields-system.html](https://www.elastic.co/guide/en/beats/metricbeat/current/exported-fields-system.html)

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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 17, 2017, 4:48pm UTC](https://discuss.elastic.co/t/cpu-usage-doesnt-come-for-100/71943/5 "2017-02-17T16:48:02Z")

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