Setting up your load tests with a blend of RBUs and VUs can be ideal but it does depend on the type of scripts you are running. Does your script require the user to fill out a form or does the site use AJAX? For those instances, RBUs work best. If your script is about browsing the site as a read-only, VUs work just as well; plus saves you money. VUs is simply HTTP and may be harder to script (but 1/10th the price!).
Dec 072009
At BrowserMob we have two different levels of load testing support: one for Real Browser Users (RBUs) and one for Virtual Users (VUs). Often it’s not immediately clear what the difference is and why you’d use one over the other.
RBU Benefits
The high level difference is this: an 100 RBU test means that there will be 100 browsers in the cloud all loading your site and interacting with it, while a 100 VU test means that there will be 100 “threads” issuing HTTP GET and POST requests to your website, but not actually running a browser. This means that RBUs:
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