MySQL : How do the Query Analyzer graphs benefit customers?

It saves a lot of time. The first release of the Query Analyzer saved a lot of time by removing the need to send query activity to logs, gather all that information, and post-process the data in order to figure out which queries were running, how often and for how long. The logical next step was correlating this information with the metrics the Enterprise Monitor collects and displays the data with graphs. If you see something happening performance-wise in the Enterprise Monitor, using the correlation graphs you can very quickly see what queries were happening at that time, before that time or even after that time from a query perspective in the Query Analyzer. That was possible to do in our earlier release, except that it was a very manual process.