The Benchmarks screen shows you which benchmarks are installed on your device. Here, you can choose which benchmark tests you want to install.
Tap on a benchmark to open its Test Details screen.
Test details screen
Each PCMark for Android benchmark contains a number of tests. The Test Details screen shows you the tests that are included in the benchmark.
You can start a benchmark run by pressing the RUN button.
Use the UNINSTALL button to free up storage space, while leaving the app installed and available to browse your score history and the Best Devices list.