We are testing some web framework. And we need to measure performance of our components. Performance like it looks to the end user.
Very often it will be necessary to measure performance of purely client processes.
What tool would you recommend for measuring described above in FireFox and in IE?
See concept, graphical virtual user.
In order for you to assess accurately the response time through the client interface, with all of the processing associated with the AJAX code, you will then need to have a testing interface which operates at the Application Layer, interfacing with the application as a user would (keyboard, mouse clicks, button presses, etc...) and can time to an event return state at the end user level.
This will very rapidly push you to the commercial tools which either leverage an existing functional tool which can be integrated for a graphical virtual user sampling agent, or one which has some sort of hybridized approach which operates at the user interface layer. Teh commercial tools in question which offer either GUI or hybridized (or both) approaches? SilkPerformer, QALoad, LoadRunner. Here presented in reverse alphabetical order to minimize bias.
Most of the open source tools operate at the HTTP layer, cutting the user interface. So, if you absolutely must measure at that layer, you are going to need a toolkit which operates at that layer.
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