You can add a comment to the test while running it, using the comment icon (). Use it to add information about load time, references you may want to add or any other additional information you wish to keep with the test run. The comment editor is a powerful rich text editor which supports text formatting and even links to external URLs.
Use @USERNAME (no spaces) to send a message to another tester on the project. The tester will see a message waiting for them, and will be able to view the test and the comment with one click.
Adding a comment is also available using the API from automation scripts.
Comments are saved for each test run and can be viewed in the comments editor.
On top right of an executed Test, in Labs, My Tasks or the test history, select the Comment icon.