What should a load testing methodology include?

The load testing methodology should include the following key elements:

1. Defining testing objectives — what exactly needs to be tested: maximum load, stability, response time under peak loads, etc.

2. Choosing metrics and success criteria — for example, response time, error rate, throughput.

3. Preparing the test environment — as close to the production environment as possible, considering infrastructure and configurations.

4. Developing load scenarios — modeling real user actions, distributing load over time and request types.

5. Tools for load generation — selecting appropriate tools (JMeter, Gatling, Locust, etc.).

6. Conducting tests with gradual load increase — to identify failure or degradation points.

7. Monitoring the system during testing — collecting metrics on CPU, memory, network, application logs.

8. Analyzing results and identifying bottlenecks — determining causes of issues, whether code, database, or infrastructure.

9. Documentation and recommendations — report with conclusions and suggestions for optimization.

This approach allows for a systematic and objective assessment of the system's behavior under load.