mariadb: Increase innodb_io_capacity from 500 to 1000

We use SSDs/NVME now.

Author: paladox

modules/mariadb/templates/config/mw.cnf.erb

@@ -62,7 +62,7 @@ wait_timeout                   = 3600
 
 innodb-flush-method            = O_DIRECT
 innodb_flush_neighbors         = 0
-innodb_io_capacity             = 500
+innodb_io_capacity             = 1000
 innodb_stats_method            = nulls_unequal
 innodb_log_file_size           = 2G
 innodb-flush-log-at-trx-commit = 1