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The Power of Continuous Performance Testing: A Shift-Left and Shift-Right Approach

no stress we have CPT
In today's fast-paced digital world, the performance of a system can make or break the user experience. Whether it's a website, mobile app, or software application, users expect lightning-fast response times and seamless functionality. As testers, it's our job to ensure that these expectations are met, and one of the most effective ways to do that is through Continuous Performance Testing (CPT). I want to create a blogpost about CPT, which is the main idea of my talk given at ISTSTC-2024. You can reach to my presentation here as well.

What is Continuous Performance Testing (CPT)?

CPT is an approach to testing that involves testing the performance of a system continuously, from the early stages of development to after deployment. It's a shift-left and shift-right approach that enables teams to identify and fix performance issues early on, reducing the risk of downtime, crashes, and other performance-related problems.

CPT is a game-changer in the world of software testing. It involves testing the performance of a system continuously throughout the development lifecycle, rather than waiting until the end to run a few isolated tests. This shift-left approach allows us to catch performance issues early on, when they are easier and cheaper to fix.

But CPT is not just about catching bugs. It's also about optimizing performance and ensuring that the system can handle the demands of a growing user base. By running performance tests continuously, we can identify potential bottlenecks and scalability issues before they become a problem, allowing us to make adjustments and improvements proactively.

monitoring the performance of a system

The Importance of CPT

The traditional approach to performance testing typically involves testing towards the end of the development cycle, which can lead to:

  • Delayed detection of performance issues, resulting in costly rework
  • Longer development cycles, leading to delayed time-to-market
  • Poor user experience, resulting in lost revenue and reputation damage

In contrast, CPT enables teams to:

  • Identify performance issues early, reducing rework and saving time
  • Improve system performance, resulting in faster response times and better user experience
  • Reduce the risk of performance-related problems, leading to increased reliability and uptime

How CPT Works

CPT involves integrating performance testing into the Continuous Integration/Continuous Deployment (CI/CD) pipeline, allowing teams to test performance continuously throughout the development lifecycle.

Here's how it works:

  1. Automated Testing: Automated performance tests are integrated into the CI/CD pipeline, allowing teams to test performance continuously.
  2. Early Detection: Performance issues are identified early, allowing teams to fix problems before they become critical.
  3. Continuous Monitoring: Performance monitoring tools are used to track system performance in real time, enabling teams to identify issues as they arise.
  4. Proactive Improvement: Performance data is used to optimize system performance, ensuring that the system can handle increasing loads and user traffic.

Benefits of CPT

The benefits of CPT are numerous, including:

  • Improved System Performance: CPT enables teams to identify and fix performance issues early, resulting in faster response times and better user experience.
  • Reduced Risk: CPT reduces the risk of performance-related problems, leading to increased reliability and uptime.
  • Cost Savings: CPT reduces the cost of fixing performance issues, as problems are identified and fixed early on.
  • Faster Time-to-Market: CPT enables teams to release software faster, as performance issues are identified and fixed earlier in the development cycle.


Continuous Performance Testing is a game-changer for teams looking to deliver high-performing systems that meet the demands of modern users. By adopting a shift-left and shift-right approach to performance testing, teams can ensure that their systems are fast, reliable, and scalable. So why wait until the end to test performance when you can do it continuously with CPT?


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