max_connections = 500
innodb_data_file_path = ibdata1:10M:autoextend
innodb_buffer_pool_size = 256M
key_buffer_size=512M
table_cache=2048
sort_buffer_size=32M
read_buffer_size=16M
http://www.profitpapers.com/papers/performance-tuning-mysql-for-load.php
http://www.professionalmiddleman.com/blog/2007/10/mysql-table-is-.html
http://rackerhacker.com/mysqltuner/