![Click on the drilldown link on
the top page to go this page.
● By Category
○ Breakdown pie chart
○ Checking upper limit
● By Method
○ Average frame timing
[ms]
etc...
Detailed Report
KLab Inc.](https://image.slidesharecdn.com/continuousprofilingforandroidgameperformanceoptimization-200107082412/85/Continuous-Profiling-for-Android-Game-Performance-Optimization-18-320.jpg)
Continuous Profiling for Android Game Performance Optimization
- 1. Continuous Profiling for Android Game Performance Optimization KLab Inc. Yoshio Hanawa Software Engineer KLab Inc. Suguru Oho Software Engineer KLab Inc. Sho Hosoda Unity Engineer KLab Inc. KLab Inc.
- 2. About us KLab is a Mobile gaming company in Japan. We have a number of games available globally based on Japanese IPs.
- 3. Profiling on Mobile Is Painful ● No dedicated debug hardware ● Many different devices / profilers ● Troublesome to set up correctly ● Not easy for non-engineers So we profiled on only a few devices for a limited set of cases... Too late to notice performance degradation KLab Inc.
- 4. Our Solution : Continuous Profiling ● Automatic profiling integrated with CI/CD ● Non-engineers can view the analysis results on the dashboard We can detect performance degradation sooner and start optimizing the bottlenecks immediately KLab Inc.
- 5. KLab Inc.
- 6. Part 1: How to Profile the Application Scripting allows the Unity player to save profiling data in-device as a Binary Log file. We can load and view this file in the Unity Editor using the Profiler window. // Saves profiling data Profiler.logFile = "mylog"; Profiler.enableBinaryLog = true; Profiler.enabled = true; Viewing binary log using Unity Profiler window KLab Inc.
- 7. Summarizing Profiling Data ● We developed a Converter with Unity Technologies Japan. ● It summarize results for each Unity’s CPU main thread method. ○ processing time ( average / sum / min / max ) ○ number of calls ○ call stack Convert Binary Log CSV KLab Inc.
- 8. Changes to the Application for Profiling 1. Automatic app play ○ It is necessary for automatic profiling. ○ Execute a fixed scenario, such as the transition to the target scene. 2. Control start and end of profiling ○ We want to profile only the target scene. 3. Save JSON for meta information ○ Unity Version / Platform / Device Model / Scene Name / etc... KLab Inc.
- 9. Part 2. Auto Profiling System KLab Inc.
- 10. We can build an APK package by sending a command to a bot on Slack. The profiling system starts automatically when the APK build is complete. The team members don’t need to be aware of the profiling. Build System Integration KLab Inc.
- 11. ● Python script ● AAPT (Android Asset Packaging Tool) ○ Detect Bundle ID ○ Detect main activity name ● ADB (Android Debug Bridge) ○ Install apk ○ Run application ○ Uninstall, file transfer and cleanup ● Unity (Execute convert script) Auto-Profiling System KLab Inc.
- 12. ● Error recovery ○ Wait and retry loop is better ○ Reset ADB server (by kill-server, start-server) ○ Difference between devices and OS version ● Keep device condition clean ○ Use some ADB subcommands ■ Kill: process kill ■ Kill-all: kill all background processes ■ Pm clear: clear all data related packages ○ Wait for cooling ● Device Settings ○ Developer mode ○ “Stay awake” & Select MTP Difficulty with REAL devices KLab Inc.
- 13. Part 3. Dashboard System KLab Inc.
- 14. ● Services on GCP ○ Cloud Storage + Cloud Functions ■ Storing and Processing data from Android ○ BigQuery ■ Data storage for dashboard ● Google Data Studio ○ Sharing visualized analytics for team members Dashboard System Components KLab Inc.
- 15. ● Pros ○ Lower cost than RDB ○ Almost constant performance for massive data ○ Supported by popular business intelligence tools ● Cons ○ Slower query than RDB (1-10 sec) ○ Append-only storage by design Suitable for data analytics even if not "big data." Pros & Cons of BigQuery KLab Inc.
- 16. ● Pros ○ Free BI tool (Thanks Google!) ○ Provides access control with Google account ● Cons ○ Limited chart type and customizability Good enough for our dashboard Pros & Cons of Data Studio KLab Inc.
- 17. Top page shows summary of multiple profiling Dashboard Screen KLab Inc.
- 18. Click on the drilldown link on the top page to go this page. ● By Category ○ Breakdown pie chart ○ Checking upper limit ● By Method ○ Average frame timing [ms] etc... Detailed Report KLab Inc.
- 19. Performance Improvement Due To Optimization KLab Inc.
- 20. ● Profile and show other performance indices ○ Memory consumption ○ GPU ○ Network I/O ○ Etc. ● More stability and usability ○ Monitoring auto-profiling system ○ Web interface for controlling auto-profiling system Future works KLab Inc.
- 21. We developed a fully-automated profiling system for Android games. Freed from painful manual profiling tasks Non-engineer friendly system As a result We can detect bottlenecks in our games. The iteration of performance optimization becomes faster. Conclusion KLab Inc.