Here's how you can navigate interview questions on performance and load testing experience.

Both performance and load comes under non- functional testing, in broad load testing comes under the umbrella of performance testing. Performance testing is conducted to validate the behavior of system under various loads these can be vary from low to high or sudden surge, validating responses on all these conditions comes under performance, where as in load testing it comes to validating system behavior under specified loads, so one should be clear understanding on basic difference on these and to perform one should depend on tools as responses will be in milliseconds for most of the transactions, so one should depend on the tools and should have clear test strategy and plan to perform load and performance testing

nderstanding the fundamental concepts of performance and load testing is essential before you step into an interview. Performance testing checks how well a system performs under various conditions, focusing on responsiveness and stability. Load testing, a subset of performance testing, involves simulating a high number of users or transactions to test the system's behavior under expected load. Be prepared to explain these definitions, the differences between them, and why they are important for maintaining a robust software

Il est en effet important de maitriser les bases des concepts de tests de charge et performance pour justifier de cette expérience lors d'entretiens d'embauche : - connaitre la différence entre les types de tests (tests de performance, de charge, de pic, de stress, d'endurance, de scalabilité, ...) - savoir ce qu'est un utilisateur virtuel, un injecteur de charge - savoir quelles métriques monitorer - connaitre les outils habituellement utilisés pour ce type de test (JMeter, LoadRunner, Gatling, Neoload, ...)

Focus on ensuring optimal response times and high throughput by setting and meeting predefined performance benchmarks. Simulate different user counts to evaluate system performance under various loads and also conduct stress testing to know the limits of the services in your application. Having proficiency with performance testing tools helps identify bottlenecks and optimize system efficiency. One should also monitor, analyze, and report results regularly to ensure systems meet performance criteria after new changes.

Sharing results involves presenting findings, outcomes, or data obtained from a specific activity, project, or analysis. It typically involves communicating these results clearly and effectively to relevant stakeholders, such as team members, managers, or clients. This process ensures that everyone involved understands the implications, insights, or conclusions drawn from the results. Effective sharing of results often includes providing context, explaining methodology, highlighting key findings, and discussing any recommendations or actions based on the findings. This helps in fostering transparency, making informed decisions, and driving continuous improvement in projects or initiatives.

Provide specific examples of your work: Describe how your tests identified performance issues, such as slow database queries or memory leaks. Actions Taken: Explain the steps you took to address these issues and the improvements observed. Impact: Highlight how your findings improved system performance, user experience, and overall application reliability.

To navigate interview questions on performance and load testing, focus on how you handle challenges. Highlight your ability to identify and resolve performance bottlenecks, optimize system resources, and ensure scalable solutions. Discuss specific tools you have used, such as JMeter or LoadRunner, and provide examples of complex issues you’ve tackled. Emphasize your analytical skills and systematic approach to testing, showcasing how you have improved application performance through meticulous testing and problem-solving.