Include MySQL Tuning

Playerbot-Configuration.md

@@ -1,19 +1,28 @@
-## Disclaimer
+## MySQL Tuning
-It has been observed that having a lot of bots, or players for that matter, will put a strain on hard drives; even with a fairly low amount of bots or players. MySQL will continuously read and write to the disk and the amount quickly adds up. 
+The default MySQL configuration is not adequate for use with Playerbots, and will lead to increased disk activity and decreased performance.
-Recommended configuration to extend lifespan of your hard drive:
-- in mysql configuration file add line `skip-log-bin` which reduce ~75-90% of writes because skipping binary logging
-- in playerbots configuration file enable `AiPlayerbot.DisabledWithoutRealPlayer` to make sure no bots are logged in while no players are
-- use as few bots as possible or limit yourself to only using altbots to minimize the amount of writes
 
-The following write speeds have been noted based on the number of bots logged in (without recommended configurations).
+You should add/change the below config options, in your MySQL configuration where ```innodb_buffer_pool_size``` ideally should be 50% of your total RAM:
 
-- 500 bots: 1-10 MB/s (100% activity)
+```
-- 1000 bots: 9 MB/s (Smart scale active)
+#
-- 2000 bots: 15 MB/s (Smart scale active)
+# * Fine Tuning
-- 4000 bots: 25 MB/s (Smart scale active)
+# Example with 64 GB RAM
-- 8000 bots: 35 MB/s (Smart scale active) (72 MB/s with 100% activity)
 
-With 8000 bots at 100% activity that equals about 178 **terabytes** every 30 days.
+# INNODB
+innodb_buffer_pool_size = 32G
+innodb_redo_log_capacity = 8G
+innodb_io_capacity = 500
+innodb_io_capacity_max = 2500
+innodb_use_fdatasync = ON
+innodb_buffer_pool_instances = 12
+innodb_log_buffer_size = 32M
+
+# Prevent SQL Deadlocks as much as possible
+transaction_isolation="READ-COMMITTED"
+
+# Max age of binary logs - 5 days to prevent binary log pileups
+binlog_expire_logs_seconds = 432000
+```
 
 ## Bot activity profiles and performance
 Before going into the configuration options we need explain the logic a bit. Every update tick of the server its calculated whether a bot can