SharePoint Performance Optimization: How Microsoft IT Increases Availability and Decreases Rendering Time of SharePoint Sites

After deploying Microsoft Office SharePoint Server 2007 in the corporate production environment, Microsoft IT noticed opportunities to enhance performance, especially long page render times, and spikes in disk I/O and CPU utilization. By working to discover root causes, Microsoft IT identified areas of opportunity for performance optimization, including the back-end SQL Server storage subsystem, and front-end IIS servers

http://download.microsoft.com/download/0/E/B/0EBA7263-A555-4279-B9DD-1720F0139A2E/SharePointOptimizationTWP.doc