Software Performance Testing Services

Answers about What is Performance Testing

Today, when computing power growth has slowed down, and processed data volume, the quantity of engaged users and purpose requests to systems continue to grow, performance testing is widely discussed in professional environment. Alfee team is ready to share their experience in what this notion means, and why it is so important.


Performance testing is a tool & methodology set, whose purpose is to determine health, stability, resource consumption, other quality attributes under various use cases and workloads.

Applying performance tests specialists detect issues that may have a negative influence on user experience and eliminate them. Read on to learn why it is important and how it functions.

Is performance testing essential?

Performance testing as a diagnostic is recommended to be implemented when new software is released, existing software is improved, and bench configuration is altered.

Performance testing can be applied to discover the origin or location of issues related to software development by indicating points when a software solution might fail or lag.

With these tests specialists can check that a system corresponds to characteristics stated by its manufacturer or seller. It’s especially demanded when there is a necessity to compare several gadgets or software solutions.

A few words about performance testing metrics

To adequately evaluate the current condition of your apps performance, specialists use several performance metrics. We have listed them below.

  1. Response time. A time period measured from the point a request is transferred to the server till the last byte comes back from the server.
  2. Requests per second. The customer application produces an HTTP request which is then transferred to the server. There it is processed by server software, a response is produced and transferred back. The overall volume of requests per second shapes the corresponding metric.
  3. Transactions per second. Quite an important performance indicators which demonstrates a sequence of user actions in the interface. When collating actual and expected transaction time, Alfee team estimates system efficiency.
  4. Error percentage. It represents the relation of invalid responses to valid ones over a certain time period.
  5. Memory. Working storage space volume which can be used by the processor or during workload.

Performance tests also take into consideration the quantity of virtual users per time unit, since it allows Alfee experts to discover if application performance meets particular requirements.

The way performance testing is executed

Taking into account the fact that performance testing can be executed applying various types of metrics, the actual process may differ. Nevertheless, consider the generic process below.

  • Test environment identification. At this stage our team identifies not only the testing environment, but also the production one. The selection of testing tools is no less important.
  • Necessary performance requirements identification. Our experts state aims and limits for performance metrics.
  • Planning. Test cases are defined and built around previously selected metrics.
  • Configuration and implementation. We start with arranging resources and go on to implementing.
  • Launching. Our professionals launch the performance testing process and monitor its progress.
  • Analyzing and retesting. Alfee developers review results, then if any alterations are made to the project, we retest it to discover how performance changes.

We try to choose software tools that best correspond to the project needs, and we never change testing environments between checkings.

What types of performance testing exist

Depending on performance testing methods implemented in the workflow, we can determine the following main types of performance testing.

Load testing

The system undergoes load testing within 5-9 hours. The necessary metrics are collected within this period: the quantity of requests per second, transactions per second, server response period, error percentage in responses, hardware resources utilization, etc. Collected metrics are examined for compliance with specified requirements and can be integrated as an element of continuous integration (CI) process. In result we can tell whether the system corresponds to performance criteria.

Stress testing

It comes one of the first and contains soak testing and spike testing. We gradually increase the load until the software development solution stops operating correctly. At the end of stress testing Alfee specialists record the quantity of users that were acceptable for the item (meeting performance criteria), and how many failed to be suitable. The first value is the performance limit for the software development solution.

Soak testing

Soak tests are implemented to check system stability and performance over a long period of time. This is a long-term check, usually performed at the end of development to track down damage.

Spike testing

This stress testing subtype focuses on application performance under huge loads for short time periods. Such loads are created either between normal application load periods in production (production environment is simulated), or no background load at all.

Scalability testing

It helps determine whether application performance will increase if additional hardware resources are added without changing the load profile.

Capacity testing

Helps to learn not just how successfully the system copes with an increasing quantity of users (load), but how many users (with what load) are able to interact with the system while response time and other performance parameters are within acceptable values. This type is very important when developing a successful eCommerce application.

Cloud performance testing specifics


Cloud performance testing provides an opportunity to build test performance models, transfer simulated traffic to applications with CPTS control programs, manage parallel processing functions, and sequence of application calls.

One of the main advantages is that software items can be checked at a larger scale, preserving cost benefits thanks to cloud location. Initially transfering performance testing to the cloud was supposed to simplify the whole process due to scalability, but later it turned out to have certain challenges, complacency being one of them. Developers start thinking that the application will behave right this way when it is in the cloud. As a result, further checking and QA are minimized, passing to immediate rollout. Accuracy suffers a lot since software items are run on a different vendor's hardware.

To avoid inter-application communication issues, we advise conducting performance monitoring.

Possible performance testing challenges

As you can guess, performance testing can face certain challenges and it’s important to be aware of them in order not to fail the whole project. Alfee team has conducted some analytical work and is ready to share results.

  • Not all tools are universal, some are suitable only for web products.
  • Tools that are free of charge may work differently from the paid ones, and the letter may be rather costly.
  • You have to check tools compatibility issues.
  • Complex applications can be difficult to test with a certain tool set.
  • It’s necessary to keep control of performance bottlenecks all the time.

Overview of performance testing tools by Alfee

We apply the latest trends and technologies in order to achieve expected results. With Alfee’s innovative approach your project will enjoy maximum efficiency. Check out the overview of tools we benefit from.


JMeter is a free tool with a friendly GUI, easy to learn. It emulates requests from a group of users to the target server, and then, after collecting server response statistics, provides us with a report.


This tool can perform both checking of applications and sites of various complexity levels by connecting virtual users performing scripts (actions), according to certain scenarios.


NeoLoad software platform provides automated test development, the most realistic user behavior simulation, fast root cause identification, and integration with an entire SDLC toolkit.

Why are Performance Testing Services Important

Software solutions are improving at a rapid speed nowadays and users expect exceptionally fast performance. Almost 50 percent of users typically get rid of an app if it doesn't load within a few seconds, and they don’t care how good its interface is. Best way not to become one of them is to take advantage of performance testing services by Alfee.

Performance testing is strictly necessary for businesses in order to constantly analyze your software product, think in advance what can happen, what behavior scenarios are typical for users.

Although performance testing services don’t reveal bugs, they help to discover system capabilities. This means, you can be sure that the website or application will not crash when the quantity of users increases or the database grows.

Our performance testing services are aimed at foreseeing possible issues which may have a negative impact on your software development solution.

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We are happy to discuss your project and offer an individual approach to product development.

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