Jet Profiler for MySQL is real-time query performance and diagnostics tool to help DBAs and developers. Core features are:
Jet Profiler focuses on queries, tables and users. This gives you the information you need most in order to quickly fix performance problems in your code, such as most frequent queries, most used tables or busiest users. Data is collected, analyzed and displayed in real-time in diagrams, pie charts and tables. You can easily drill down and navigate through the data. Most of the profiling work is done in the Jet Profiler application, not in the database server. Therefore, the performance hit is normally negligible, around 1%. It supports all MySQL versions. No database server changes are necessary. No agents or separate services are needed. Jet Profiler is a desktop application which runs on your computer. You start it, connect to a server, hit the record button, and see results within minutes. And it runs on Windows, Mac and Linux. The professional version contains more features than the free version.