A Little Now or a Lot Later: Application Load and Stress Testing

How much traffic can your application really handle? At what point does it stop responding? What does an impending overload failure look like?

If you can’t answer these questions, you’ll need to do a stress test.

Stress testing is often an afterthought. Some regard it as too expensive. But it likely will be performed in your live production environment even if you don’t intend to do so. Load-related breakdowns happen. Then, after digging through the digital wreckage, you will have learned the limits of your application and environment.Load Testing Your Server

Much better to perform the stress test deliberately, away from live traffic, and in advance of any natural occurrence in the wild. Testing helps prepare for eventual load failures in production, uncovering the error codes and peculiar behaviors seen as the limit is approached. It allows developers to tune for maximum performance. It also feeds information to planners and business contacts to help accommodate future growth.

You’ll need a capable testing tool. Hewlett Packard Enterprise LoadRunner has long been the gold standard in test suites. It’s been joined by competitors like WebLOAD, L Appvance, NeoLoad, and the open-source JMeter.  LoadView is another option in terms of a comprehensive tool. In response to competition, HPE now offers a “community edition” of LoadRunner free for up to 50 v-users.

In the most complex and demanding environments, you’ll likely need more than one tool. It seems some critical information in one component or another of a complex app remains invisible to any single testing product. Website load testing is a complex process, and a this is why it might require the use of a variety of tools.

The stress test requires considerable planning. A common strategy is to simulate a sudden burst of interest in an online application. Usually, these real-life events start with a trickle that gradually becomes a flood. The test should follow a curve to allow all parts of the application to stabilize as usage increases. Baselines are established for comparison. Only then are the taps opened full. The full-throttle scenario should be sustained long enough to find a breaking point, or to gain confidence the application has more than enough headroom to handle any likely usage pattern.

While the test is underway, staff should track system logs and performance meters as well as application and database logs. A sysadmin or engineer must monitor system utilization during the test. This information will be critical to diagnosing impacts to the application from server problems, and in creating a system capacity plan.

Stress testing–though often difficult and time-consuming–is essential. It’s a little now or a lot later.

A Deeper Look Into Software & System Load Testing

It goes without saying that technology is changing swiftly. In many online platforms, you will find thousands upon thousands of apps being developed and sold every day. Sometimes you will find several of them performing the same task but a user may prefer one to the other, and you would ask yourself why. It’s very simple. Users will continually choose an app or software if it continues to function flawlessly and solve their need. There is the need for developers to adequately test their products before releasing them to the market. They should make sure that they subject their software to functionality, usability, and crowd testing.load testing

Load Testing

You would want your software or system to work perfectly even when multiple users are using it at the same time. This load testing ensures just that. While many people use pressure or stress loading to mean the same thing, the later entails overloading the system to an extent that it breaks down. All these tests are important as they reveal how a given software or system can behave when subjected to the real stress which they are likely to come by in their daily running. Adjustments can then be made to improve their functionality.

Steps for Properly Load Testing Your Server or Software

Here you should ask yourself how you’d want your software to function. Some of the questions to ask you include its response time, maximum user load, resource utilization, throughput Check whether all your questions have answers. Also, identify those areas that need a definite performance impact.

Other steps would include determining the workload, by this, you should ascertain the distribution of the work, for latest applications, the information can have a basis for a variety of things such as market research and trends, historical data, and much more. You will also calculate user load in a given scenario. Here, you can find the percentage user weight in each scenario.

Another step is to identify metrics. Every developer knows their software or system objectives, and this is what parameters mean. The metrics, therefore, will be used to measure the system’s real-time performance about your performance goals. The key things to observe here include network specific metrics, system-related metrics, platform specific, application specific and service level metrics.

If you’re looking for a tool to perform your tests, it’s a good idea to do some  research on the broad range of load testing or stress testing tools and identify the most appropriate tool. It is important to notice that each tool has its pros and downside, therefore, make sure to take the time to weight your options carefully.

A Blog For Tech Savvy Website Builders And Developers

When you’re stress testing and load testing for computers it can be compared to performance testing. Essentially, there are different methods of using each of them and they each perform a specific goal. In order to perform these types of testing you have to be familiar with the performance of application software. If this sounds technical that’s because it is and should always be performed by a computer technician with expertise in load and stress testing. In all, customers receive pertinent information about their website and volume. Concurrent user testing is also beneficial to your website.

Load testing tells you when the response time of your web searches has been lowered because of frequent search and user activity. When your capacity drops to a matter of 4 or 5 seconds your page may not pop up in the search inquiry as quick as other sites. Given a certain hour a specific amount of searches should be able to be performed in a matter of milliseconds.System Load Testing

Stress testing is different in that it validates your performance. Your workload and volume models are tested to determine the stress of an application. Overloaded software functions can affect your memory, cause insufficient space for other applications, and your server to fail.

Whereas, concurrent user testing directly involves your site user data. Determining how many users are present when if you need those stats are important. This analysis can help you drive traffic to your site by collectively testing the concurrent users that are present at any given time. A larger group of website owners use Google Analytics to get this user data. You’ll get a clear definition of the baseline of a high or average volume amount of traffic. This information can be used to build your website.

It is important to realize the imperatives of performance testing before you decide to have the work performed. There is a certain consistency that you can expect from the performance of your website that will enhance the benefits of building or managing a website or search engine functions. Technology may not be living up to the standards that they imply in their software contracts. You can find out with specific testing or analysis performed by a computer expert. Each testing objective will produce specific results and achieve a specific goal to maximize the functions of your computer or website capabilities.