## innodb IO配置参数 1. innodb_log_file_size; 2. innodb_log_files_in_group; 3. 事务日志总大小 = innodb_log_file_size * innodb_log_files_in_group; 4. innodb_log_buffer_size; 5. innodb_flush_log_at_trx_commit; 6. innodb_flush_method = O_DIRECT; 7. innodb_file_per_table = 1; 8. innodb_doublewrite = 1; ## myisam IO配置参数 1. delay_key_write : 延迟键写入;