Add basic FAQ in README

README.md

@@ -22,6 +22,50 @@ threadpool. Thus, Folia should scale well for servers like this.
 Folia is also its own project, this will not be merged into Paper
 for the foreseeable future. 
 
+## FAQ
+
+### What server types can benefit from Folia?
+Server types that naturally spread players out, 
+like skyblock or SMP, will benefit the most from Folia. The server
+should have a sizeable player count, too.
+
+### What hardware will Folia run best on?
+Ideally, at least 16 _cores_ (not threads).
+
+### How to best configure Folia?
+First, it is recommended that the world is pre-generated so that the number
+of chunk system worker threads required is reduced greatly.
+
+The following is a _very rough_ estimation based off of the testing
+done before Folia was released on the test server we ran that
+had ~330 players peak. So, it is not exact and will require further tuning - 
+just take it as a starting point.
+
+The total number of cores on the machine available should be 
+taken into account. Then, allocate threads for: 
+- netty IO :~4 per 200-300 players
+- chunk system io threads: ~3 per 200-300 players
+- chunk system workers if pre-generated, ~2 per 200-300 players
+- There is no best guess for chunk system workers if not pre-generated, as
+  on the test server we ran we gave 16 threads but chunk generation was still
+  slow at ~300 players.
+- GC Settings: ???? But, GC settings _do_ allocate concurrent threads, and you need
+  to know exactly how many. This is typically through the `-XX:ConcGCThreads=n` flag. Do not
+  confuse this flag with `-XX:ParallelGCThreads=n`, as parallel GC threads only run when
+  the application is paused by GC and as such should not be taken into account.
+
+After all of that allocation, the remaining cores on the system until 80%
+allocation (total threads allocated < 80% of cpus available) can be
+allocated to tickthreads (under global config, threaded-regions.threads). 
+
+The reason you should not allocate more than 80% of the cores is due to the
+fact that plugins or even the server may make use of additional threads 
+that you cannot configure or even predict.
+
+Additionally, the above is all a rough guess based on player count, but
+it is very likely that the thread allocation will not be ideal, and you 
+will need to tune it based on usage of the threads that you end up seeing.
+
 ## Plugin compatibility
 
 There is no more main thread. I expect _every_ single plugin