Optimize much of the database code and serialize code.

data/example.conf

@@ -1135,6 +1135,15 @@ db_flatfile
 	 * The database name db_flatfile should use
 	 */
 	database = "anope.db"
+
+	/*
+	 * If enabled, services will fork a child process to save databases.
+	 * 
+	 * This is only useful with very large databases, with hundreds
+	 * of thousands of objects, that have a noticable delay from
+	 * writing databases.
+	 */
+	fork = no
 }
 
 /*
@@ -1154,7 +1163,8 @@ db_flatfile
  * This module allows saving and loading databases using one of the SQL engines.
  * This module reads and writes to SQL in real time. Changes to the SQL tables
  * will be immediately reflected into Anope. This module should not be loaded
- * in conjunction with db_sql.
+ * in conjunction with db_sql, except during the initial import of existing
+ * databases to SQL.
  */
 #module { name = "db_sql_live" }