Commit d6f67dba authored by DJ Mountney's avatar DJ Mountney
Browse files

Add note to requirements doc on swap recommendation, and ensuring enough available memory.

parent 8530c73a9d56
......@@ -64,7 +64,10 @@ If you have enough RAM memory and a recent CPU the speed of GitLab is mainly lim
### Memory
You need at least 2GB of addressable memory (RAM + swap) to install and use GitLab!
With less memory GitLab will give strange errors during the reconfigure run and 500 errors during usage.
The operating system and any other running applications will also be using memory
so keep in mind that you need at least 2GB available before running GitLab. With
less memory GitLab will give strange errors during the reconfigure run and 500
errors during usage.
- 512MB RAM + 1.5GB of swap is the absolute minimum but we strongly **advise against** this amount of memory. See the unicorn worker section below for more advice.
- 1GB RAM + 1GB swap supports up to 100 users but it will be very slow
......@@ -77,6 +80,10 @@ With less memory GitLab will give strange errors during the reconfigure run and
- 128GB RAM supports up to 32,000 users
- More users? Run it on [multiple application servers](https://about.gitlab.com/high-availability/)
We recommend having at least 1GB of swap on your server, even if you currently have
enough available RAM. Having swap will help reduce the chance of errors occuring
if your available memory changes.
Notice: The 25 workers of Sidekiq will show up as separate processes in your process overview (such as top or htop) but they share the same RAM allocation since Sidekiq is a multithreaded application. Please see the section below about Unicorn workers for information about many you need of those.
## Gitlab Runner
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