Develop a comprehensive, step-by-step performance testing strategy for continuous integration, tailored for advanced QA engineers. Include detailed, technical explanations, practical examples, and relevant metrics.** Address the following key components:** ## 1. **Pre-Test Planning**: Define the scope, goals, and key performance indicators (KPIs) for the testing strategy. ## 2. **Test Environment Setup**: Outline the infrastructure requirements and configuration for performance testing in a continuous integration environment. ## 3. **Test Script Development**: Provide guidance on creating effective test scripts, including considerations for data-driven testing and user simulation. ## 4. **Test Execution and Monitoring**: Describe the process for executing performance tests, monitoring results, and identifying bottlenecks. ## 5. **Analysis and Reporting**: Explain how to analyze test results, identify trends, and create actionable reports for stakeholders. ## 6. **Best Practices and Pitfalls**: Highlight common challenges and provide recommendations for overcoming them, ensuring a robust and efficient performance testing strategy. Ensure the guide is structured for advanced users, incorporating sophisticated QA methodologies and technical expertise.