For almost two years now, Mario has been working as an Oracle performance engineer for HP Windows Integrity Engineering in Redmond, Washington. Before that, he spent more than 10 years doing Oracle performance consultancy and benchmark work in his native Holland for HP, Compaq and Baan Development. Challenged by the lack of usable performance data in SQL Server 2000, he developed his own interface and tools, as a sort of pet project. Although his daily work is purely Oracle related it's still fun and educating to pick up the SQL Server challenge during a rainy weekend (they do exist in the Seattle area). Some of his hobby projects can be seen and downloaded at www.sqlinternals.com, Mario can be reached at mariob at sqlinternals.com.