The Zero Impact Performance Divergence Monitor is released. Offers early warning of deteriorating performance in SQL Server database server farms. Analyzes performance trends and deviations from historical baselines to identify which performance metrics and SQL statements are deteriorating from a prior rolling time period or historical baseline. Read more.
After years as a DBA, I can tell you there is absolutely nothing on the market that compares to the Zero Impact Sql Monitor product line...it is the best performance investment you will ever make.