# See how many containers are in use at a given time

**URL:** <https://discuss.circleci.com/t/see-how-many-containers-are-in-use-at-a-given-time/20903>\
**Category:** Build Environment\
**Created:** [March 20, 2018, 11:19pm UTC](https://discuss.circleci.com/t/see-how-many-containers-are-in-use-at-a-given-time/20903 "2018-03-20T23:19:21Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![LeslieCarr](https://avatars.discourse-cdn.com/v4/letter/l/838e76/32.png) [@LeslieCarr](https://discuss.circleci.com/u/LeslieCarr)\
**Post date:** [March 20, 2018, 11:19pm UTC](https://discuss.circleci.com/t/see-how-many-containers-are-in-use-at-a-given-time/20903/1 "2018-03-20T23:19:21Z")

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Is there a way to see how many containers are in use at a given time? Or, even better, some sort of graph of “how many containers are in use” versus “time” ?

I want to be able to see our utilization over time so that we can plan for increases in our capacity and see how test changes affect our circleci utilization.

Thanks!

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**Author:** ![halfer](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/halfer/32/9083_2.png) [@halfer](https://discuss.circleci.com/u/halfer)\
**Post date:** [March 21, 2018, 1:40pm UTC](https://discuss.circleci.com/t/see-how-many-containers-are-in-use-at-a-given-time/20903/2 "2018-03-21T13:40:47Z")

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You might be able to get historical build information from the API. I think that would contain build time, though I don’t know how far back the history would go. Maybe you could poll this once a day to get fresh build data, and then store it locally for analysis?

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**Author:** ![levi-rs](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/levi-rs/32/11739_2.png) [@levi-rs](https://discuss.circleci.com/u/levi-rs)\
**Post date:** [April 24, 2018, 4:18pm UTC](https://discuss.circleci.com/t/see-how-many-containers-are-in-use-at-a-given-time/20903/3 "2018-04-24T16:18:14Z")

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+1, I would really like to see how many containers are in use at this moment, as well as a trend vs time.

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**Author:** ![system](https://global.discourse-cdn.com/circleci/original/3X/5/1/511608acda8e85906e15909b57bd0a46c1dbe291.png) [@system](https://discuss.circleci.com/u/system)\
**Post date:** [July 23, 2018, 4:18pm UTC](https://discuss.circleci.com/t/see-how-many-containers-are-in-use-at-a-given-time/20903/4 "2018-07-23T16:18:18Z")

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