What two types of tests should developers plan for during performance testing?

During performance testing, it is essential for developers to focus on specific metrics and behaviors of the application under various conditions. Peak and Endurance Testing are particularly critical in this context.

Peak Testing is designed to assess how the application performs under the highest expected load conditions, allowing teams to identify any potential bottlenecks or issues that may arise when the system is pushed to its limits. This type of testing ensures that the application can handle expected surges in user traffic without degradation in performance.

Endurance Testing, on the other hand, evaluates how the application behaves under an extended period of load. This type of testing is crucial for identifying issues such as memory leaks, performance degradation over time, and resource consumption trends that might not be apparent during shorter tests. It helps to validate that the application remains stable and performs efficiently over time, ensuring a consistent user experience.

Together, these two types of performance testing provide a comprehensive view of an application's capability to handle both short-term spikes and long-term sustained usage, making them vital components of the performance testing strategy.