670832188/performance-samples

Multiple samples showing the best practices in performance on Android.

Android Performance

A collection of samples using the performance libraries.

JankStats sample

This sample shows how to set up and use the JankStats library to detect janky frames.

Microbenchmark sample

This sample shows how to use the Benchmark library to benchmark code and UI from library modules.

Macrobenchmark sample

This sample shows how to use the MacrobenchmarkSample library for testing application startup and runtime performance cases, such as scrolling a RecyclerView to measure jank.

The sample also includes a GitHub workflow to run Macrobenchmarks on Firebase Test Lab. For more information refer to the README.md.

ConstraintLayout performance comparison

This sample compares how different ViewGroups (ConstraintLayout vs traditional layouts) affect the UI performance.

BenchmarkNdk sample (Prototype!)

This prototype sample shows how to use the Benchmark library together with the NDK, and google/benchmark to benchmark C++ code, while getting the Android-specific performance stability, and Studio integration from the Jetpack Benchmark library.

Important Notes

• Make sure your device's screen is on before running benchmarks
• Don't forget to checkout submodules: git submodule update --init --recursive

Reporting Issues

You can report an Issue with a sample using this repository. If you find an issue with a specific library, report it using the corresponding issue tracker link available in the sample README file.

Additional Resources

PagingWithNetworkSample - Example of benchmarking an androidx.paging backed RecyclerView

WorkManagerSample - Example of benchmarking asynchronously scheduled background work

License

Copyright 2022 The Android Open Source Project, Inc.

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.