The chromium.perf waterfall continuously builds and runs our performance tests on real Android, Windows, Mac, and Linux hardware. Results are reported to the Performance Dashboard for analysis. The Perfbot Health Sheriffing Rotation ensures that the benchmarks stay green. The Perf Sheriff Rotation ensures that any regressions detected by those benchmarks are addressed quickly. Together, these rotations maintain Chrome's Core Principles of speed:
“If you make a change that regresses measured performance, you will be required to fix it or revert”.