Playwright Performance Testing Plugin

playwright-performance is a plugin for Playwright that enables detailed performance analysis of end-to-end test flows, including UI, API, or hybrid scenarios. It measures the 'apparent response time' of key user procedures within your application, helping identify bottlenecks and areas for optimization. The current stable version is 2.0.6, with recent updates introducing HTML chart generation. The library maintains an active release cadence, with a major breaking change in version 2.x.x simplifying its integration model. Its key differentiator is the seamless integration into Playwright's `test.extend` fixture system, allowing developers to easily add performance sampling to existing tests without significant refactoring, and providing configurable output options for results.