The Profiles panel allows you to analyze the memory usage and processing demands of your content. You can use the Profiles panel to create a performance profile for your JavaScript and CSS files.
- For JavaScript files, Web Inspector examines and reports on the CPU usage for each function. You can view the CPU usage for a particular function and for the number of times that function was called.
- For CSS files, Web Inspector examines the processing demands for each selector. Web Inspector records the amount of time it took to search for matches for a particular selector and for the total number of matches for that selector.
To use the Profiles panel, you must first enable profiling. When you first view the Profiles panel, Web Inspector prompts you to enable profiling for just the current session or for all sessions.
The Profiles panel
If you haven't already enabled profiling, Web Inspector prompts you to do so.
