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Obviously you select runtime settings that are appropriate for what you are trying to achieve with your test, but the funny thing is that there are actually a small list of settings that are usually appropriate for most situations.
Read on… Whenever I am using a vuser type that allows multiple actions in a single script, I will create a separate action for each business tutorial write and cite qmu and put appropriate percentage weightings on each action. It is very unusual to have to do anything more complicated than this.
Why would you want to run an unknown number of transactions per hour against the system? Do not make the lower boundary value any bigger than the maximum time it takes to complete the business process, or you will end up creating less transactions per hour than you intend to.
Logging creates additional overhead on your load generators, and can create huge log files. I log absolutely everything when debugging in VuGen. Just like the pacing setting, I think that it is a good idea to put some randomness in your think times. This option is ignored by most people.
It is used to create a parameter with a given value without having to edit the script as runtime settings can be overridden in the Controller. In the screenshot I have created a parameter of ServerName with the address of the test envioronment.
If you were testing in more than one test environment at a time, this would make save some time. Continue on error is generally only going to be used if you have written code to do something when you encounter an error.
Usually the default behaviour of ending the current iteration and then starting the next one is sufficient. If you are raising an error, you should fail the transaction step that you are performing. If it is a web script, any error messages should be added to your content check rules.
Run your virtual user as a thread unless you have code that is not threadsafe or there is some other reason to run your virtual users as a process. The overall memory footprint on your load generators will be higher if you run as a process.
If it is a web script, I can use the transaction breakdown graph to get this information, otherwise I will add the transactions myself. Not all vuser types have this option available. Most of the time my virtual users will use the maximum bandwidth.
If I want to emulate users with bandwidth constraints, I will do this in a separate scenario. Google calculator is handy to calculate bitrates if your bitrate is not available from the drop-down list e. Each vuser type will have its own runtime setting options. It is important to know what they mean and how they will influence your test results before running any tests that you plan to report on.
Some people get confused by the User-Agent browser to be emulated setting. This is completely pointless unless your application has been written to serve different content to different browsers based on the User-Agent field.
If you start getting errors that are due a proxy server rather than the system under test, it will just confuse the people who have to fix the problem. A proxy server will also make IP-based load balancing ineffective. You should make sure that you have an identical proxy server for your test environment, or that you have permission to be generating load on a piece of Production infrastructure.
TODO These settings are default values specified by Mercury, rather than being inherited from the web browser that is installed on your workstation.
Generally you will not need to change them, but be aware that they are here. I generally use this feature when the web application in the test environment contains third-party images used for tracking website usage e.You can also check out our great series of videos to learn how to quickly navigate through the basic RefWorks features.
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