# System Requirements for running Keycloak?

**URL:** <https://forum.keycloak.org/t/system-requirements-for-running-keycloak/15585>\
**Category:** Configuring the server\
**Created:** [May 17, 2022, 3:43pm UTC](https://forum.keycloak.org/t/system-requirements-for-running-keycloak/15585 "2022-05-17T15:43:08Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Southpaw1496](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/southpaw1496/32/5844_2.png) [@Southpaw1496](https://forum.keycloak.org/u/Southpaw1496)\
**Post date:** [May 17, 2022, 3:43pm UTC](https://forum.keycloak.org/t/system-requirements-for-running-keycloak/15585/1 "2022-05-17T15:43:08Z")

</div>

I discovered Keycloak this morning, and it looked interesting, so I decided to try spinning up the Docker server on my testing server, which is a Linode Shared CPU plan with 1GB of RAM and 1vcore. Usually the CPU idles at around 1-5% with what’s already running there, but as soon as I spun up the Docker container (using docker compose) it jumped up to 100% and stayed there until I stopped the server.

When I Googled “Keycloak minimum requirements”, all that came up was [Server Installation and Configuration Guide](https://www.keycloak.org/docs/latest/server_installation/), which says only 512MB of RAM is required. I know it’s a legacy distribution, but surely the requirements haven’t changed that much?

---

<div class="post-metadata">

**Author:** ![Southpaw1496](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/southpaw1496/32/5844_2.png) [@Southpaw1496](https://forum.keycloak.org/u/Southpaw1496)\
**Post date:** [May 21, 2022, 1:54pm UTC](https://forum.keycloak.org/t/system-requirements-for-running-keycloak/15585/2 "2022-05-21T13:54:52Z")

</div>

I solved it, it seems that the Java process only uses a lot of resources when starting up, after 3-5 minutes it settles down to a far more reasonable 1% CPU usage