This is good conference for DB performance, and testing data generation.

O'Reilly MySQL Conference & Expo, returning to Santa Clara April 11-14, 2011
http://en.oreilly.com/mysql2010/

O'Reilly MySQL Conference Topics:
    * Architecture and Technology
    * Business and Case Studies
    * Cloud Computing
    * Data Warehousing and Business Intelligence
    * Java
    * LAMP
    * Migration
    * MySQL Cluster and High Availability
    * .NET/Windows
    * Performance Tuning and Benchmarking
    * PHP and MySQL
    * Replication and Scale-Out
    * Ruby and MySQL
    * Security and Database Administration
    * Storage Engine Development and Optimization
    * Web 2.0, Ajax, and Emerging Technologies