7 possible reasons for performance degradation

2023.06.07.
Performance problems and slow response times make it difficult to use software and applications. In order to identify and solve them as soon as possible, we have collected the most common reasons that can cause the performance degradation of an IT system.

Poor performance: slow response time

In the event of a performance problem in the IT systems, the real response time of the execution is longer than the expected time. Poor software performance is usually caused by improper operation or coordination of external software such as databases or hardware. In the event of performance degradation, the performance limitations causing the problems must be identified and the necessary corrective measures must be taken. It helps to identify performance problems if we know the most common cases and reasons that can cause reduced system performance.

The most common performance issues

It is advisable to proactively solve performance problems, prevent errors, and test load performance at higher user levels in advance. Problems with software and applications can be caused by many factors. Below we provide an overview of the most common causes of performance decline.

Problem 1: Incorrect load distribution

Poor load balancing can result in slow response times. If the system incorrectly assigns new users to system elements, there will be too many users on one server at the same time, which will reduce system performance.

Problem 2: Traffic peaks

It is worth preparing in advance for suddenly increased traffic and significant traffic spikes. During our performance testing project for the Bulgarian DSK bank, we also had to account for the large-scale increase in traffic due to the increased traffic of the banking systems that merged after the acquisition.

Problem 3: Non-optimized databases

An optimized database enables the highest level of security and performance, while an unoptimized database can damage applications running in production.

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Problem 4: Uncontrolled data growth

For the optimal performance of the IT system, the management and monitoring of the constantly growing data must be developed. It must be determined whether the increased data will be stored on-premises or in the cloud.

Problem 5: Badly written code

Poorly written code can lead to many software problems, such as memory leaks or inefficient algorithms. Old versions of software or integrated legacy systems can also cause performance degradation.

Issue 6: Third Party Services
In the case of third-party services, it must be accepted that certain slowdowns cannot be controlled by the party using the service. In such cases, if a performance problem occurs, it is worth checking the performance of our own software first. The question is, what kind of performance guarantees can the service provider provide us with?

Problem 7: Domino effect

The performance of a complex IT system can be greatly impaired if one location fails, then according to the principle of the domino effect, the rest of the software connected to it is affected one after the other. In this case, performance chaos is complete.

Performance testing platform to uncover bugs

Adequate testing can prevent drastic performance degradation that threatens the operation of the company. According to the experience of ProofIT's professionals experienced in performance testing of complex IT systems, effective performance testing greatly reduces the occurrence of problems affecting performance. The simplest and most effective solution is to measure the performance of the software with a testing tool supported by automation.

Our newest product helps to uncover errors in the performance of complex IT systems. Learn more about our PeACE performance testing and evaluation platform! >>>

Kapcsolódó:  3 reasons why you should invest in automated performance testing

Sources: 1, 2


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