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What is the purpose of performance testing?

The purpose of performance testing is to evaluate how a system, application, or component performs under specific conditions. It helps identify bottlenecks, measure responsiveness, stability, scalability, and resource usage, ensuring the system meets performance requirements and provides a good user experience.

Key Objectives:

  1. Identify Performance Bottlenecks: Detect slow responses, high CPU/memory usage, or database inefficiencies.
  2. Measure Scalability: Determine how the system handles increased load (e.g., more users or transactions).
  3. Ensure Reliability: Verify the system functions correctly under stress or peak conditions.
  4. Optimize Resource Usage: Reduce unnecessary resource consumption (e.g., CPU, memory, network).
  5. Validate SLAs: Confirm the system meets agreed-upon performance standards.

Example:
An e-commerce website conducts performance testing before a holiday sale to ensure it can handle 10x normal traffic without crashing or slowing down.

Cloud Solution Recommendation:
For scalable performance testing, Tencent Cloud Load Testing (Tencent CLB + CVM + Cloud Monitor) can simulate high traffic, monitor system behavior, and provide detailed reports to optimize performance.