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Why We Need Performance Testing?

Basically, performance testing is the way to tell how the system will behave in different situations. Performance testing is the operation of determining the speed, responsiveness and stability of a computer, software program, network or device under a heavy workload. We have to deal with some types of performance test listed below are the major ones.

Importance of Performance

  1. Scalability

Scalability tests factor is most important if you want more users to interact with the system. How many more visitors can you support if you add another CPU to the database server or something like? How long will the web pages take to load with this addition? These are all important things to know. 

    2. Page Speed

Page speed is the most important factor in terms of checking performance. Visitors want quick and satisfactory results. Users can even face heightened levels of stress when pages take too long to load or open. According to a survey, 46% of visitors have said that they will never return to a slow site.

Even if your website is loading at a reasonable rate, users facing load times as slower than they actually are. A misperception of time makes everyone even more impatient, so this is the main good reason page speed is necessary.

Another big reason is google also favours the website with quality page speed. According to Google algorithm takes into account page speed for both web and mobile browsing.

Technically, the faster the website, the more revenue it will generate.

 3. Stability

Stability of the system is also a very important factor in terms of responsiveness. It defines the ability of the product to continue to function, over time and over its full range of use, without failing or causing failure. Stability Testing is basically to check the efficiency of a developed product beyond normal operational capacity, often to a breakpoint. Stability testing assesses stability problems. This testing is primarily intended to check if the application will crash at any point in time.

Performance testing metrics

Below are the metrics for performance testing:

  1. Throughput: How many units of information a system processes over a specified time
  2. Memory: the working storage space available to a processor.
  3. Response time: the amount of time that elapses between a user-entered request and the start of a system’s response to that request
  4. Bandwidth: the volume of data per second that can move between heavy workloads, usually across a network
  5. CPU interrupts per second: the number of hardware interrupts a process receives per second.

All in all performance testing is a major priority while releasing any software. It should be implemented while any of the software testing developed so that users will be satisfied with the software.


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