| This directory contains a simple Android app that is meant to help in doing |
| controlled startup performance experiments. |
| |
| This app is structured as a number of activities that each are useful for a |
| different aspect of startup testing. |
| |
| # Activities |
| |
| ## EmptyActivity |
| |
| This is the simplest possible Android activity. Starting this exercises only the |
| system parts of startup without any app-specific behavior. |
| |
| adb shell am start -n com.android.startop.test/.EmptyActivity |
| |
| ## LayoutInflation |
| |
| This activity inflates a reasonably complex layout to see the impact of layout |
| inflation. The layout is supported by the viewcompiler, so this can be used for |
| testing precompiled layout performance. |
| |
| The activity adds an `inflate#activity_main` slice to atrace around the time |
| spent in view inflation to make it easier to focus on the time spent in view |
| inflation. |
| |
| adb shell am start -n com.android.startop.test/.ComplexLayoutInflationActivity |
| |
| ## NonInteractiveSystemServerBenchmark |
| |
| This activity is for running microbenchmarks from the command line. Run as follows: |
| |
| adb shell am start -W -n com.android.startop.test .NonInteractiveSystemServerBenchmarkActivity |
| |
| It takes awhile (and there's currently no automated way to make sure it's done), |
| but when it finishes, you can get the results like this: |
| |
| adb shell cat /sdcard/Android/data/com.android.startop.test/files/benchmark.csv |