# Cpu / Worker

**URL:** <https://mediasoup.discourse.group/t/cpu-worker/2114>\
**Category:** mediasoup libraries\
**Created:** [December 11, 2020, 5:39pm UTC](https://mediasoup.discourse.group/t/cpu-worker/2114 "2020-12-11T17:39:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Mike](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/mike/32/685_2.png) [@Mike](https://mediasoup.discourse.group/u/Mike)\
**Post date:** [December 11, 2020, 5:39pm UTC](https://mediasoup.discourse.group/t/cpu-worker/2114/1 "2020-12-11T17:39:50Z")

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Hi,

If a server with 4 CPUs, this means that each worker will be launched on each CPU?

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**Author:** ![ibc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ibc/32/1540_2.png) [@ibc](https://mediasoup.discourse.group/u/ibc)\
**Post date:** [December 11, 2020, 11:12pm UTC](https://mediasoup.discourse.group/t/cpu-worker/2114/2 "2020-12-11T23:12:36Z")

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This depends on how the OS spawns proceses. But in theory yes.

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**Author:** ![Mike](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/mike/32/685_2.png) [@Mike](https://mediasoup.discourse.group/u/Mike)\
**Post date:** [December 11, 2020, 11:18pm UTC](https://mediasoup.discourse.group/t/cpu-worker/2114/3 "2020-12-11T23:18:00Z")

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Thanks !

Because i try with 20 users in the same room. Only 1 cpu is used (80/100%) and not others cpu.  
Maybe everybody in the same room, i don’t know.

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**Author:** ![ibc](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/ibc/32/1540_2.png) [@ibc](https://mediasoup.discourse.group/u/ibc)\
**Post date:** [December 12, 2020, 12:08am UTC](https://mediasoup.discourse.group/t/cpu-worker/2114/4 "2020-12-12T00:08:33Z")

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Please read the documentation and the relationship between mediasoup Workers and mediasoup Routers.

BTW there are no “rooms” in mediasoup.