System applications are just a way of making things easier and faster. Nearly 46% of users say they are ready to abandon a site if it does not load in three seconds or less. It goes without saying that if the app just looks and feels good
Performance testing is the key to all solutions here. However, performing it blindly could also get you into trouble. Here is a list of most common performance engineering mistakes
Functioning without a methodology
It is one of the most important steps to avoid delay in performance-related activities. It is, therefore, best to determine what activities are desired and design a methodology according to it before starting the development stages.
Not maintaining the KPIs
It is very important to maintain them and not cross them. If the requirements state that a certain page must open within 2 seconds, it should not exceed more than that. Customers would immediately see the difference. The KPIs are different for different sites. For example, it would be different for a travel site or a hospitality site.
Failing to perform Performance Testing during pre-production
An application usually functions well at the first instance, but that should not change your decision. Ideally, the application should be tested for performance at the pre-development stage. If there is infrastructure like Google and Facebook, you can expose your changes to a subset of users and validate their user experience. The change can always be rolled back or rolled out, depending on the level of satisfaction you have. However, if sophisticated DevOps is absent, the application may be slow or even have downtime issues.
Testing without the right tools
Usually one does not have to pay for the tools. Some software testing company use JMeter, while some use automation tools, which provide insights into client-side performance and server-side troubleshooting. It is possible to achieve 100% manual testing for performance, but that is expensive and offers little insight into how the application will work. Remember, load testing is not the only tool you need. It is also important to test both on real and virtual devices. By using tools that during virtual users, you can simulate mobile users and emulate the network conditions of virtual applications.
Testing only on LAN: It will be foolhardy to use the application only over LAN and avoid testing on other servers and apps on 3G network. Testing on different iOS like Google Chrome and Mozilla is also important to ensure that the application works best on each medium.
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