Merge branch '512mb' into 'master'

512mb

Most people only care about the 512mb option, we should mention that with one worked you don't get http pushes.

doc/install/requirements.md

@@ -43,18 +43,24 @@ We love [JRuby](http://jruby.org/) and [Rubinius](http://rubini.us/)) but GitLab
 ## CPU
-- 1 core works for under 100 users but the responsiveness might suffer
-- **2 cores** is the **recommended** number of cores and supports up to 100 users
-- 4 cores supports up to 1,000 users
-- 8 cores supports up to 10,000 users
+- 1 core works supports up to 100 users but the application will not be responsive
+- **2 cores** is the **recommended** number of cores and supports up to 500 users
+- 4 cores supports up to 2,000 users
+- 8 cores supports up to 5,000 users
+- 16 cores supports up to 10,0000 users
+- 32 cores supports up to 20,0000 users
+- 64 cores supports up to 40,0000 users
 ## Memory
-- 512MB is too little memory, GitLab will be very slow and you will need 250MB of swap
-- 768MB is the minimal memory size but we advise against this
+- 512MB is the abolute minimum, you need 256MB of swap, you can configure only one slow unicorn worker, only ssh access will work, we do not recommend this
 - 1GB supports up to 100 users (with individual repositories under 250MB, otherwise git memory usage necessitates using swap space)
-- **2GB** is the **recommended** memory size and supports up to 1,000 users
-- 4GB supports up to 10,000 users
+- **2GB** is the **recommended** memory size and supports up to 500 users
+- 4GB supports up to 2,000 users
+- 8GB supports up to 5,000 users
+- 16GB supports up to 10,000 users
+- 32GB supports up to 20,000 users
+- 64GB supports up to 40,000 users
 ## Storage