About Me

Hello, I’m Gracker.

I currently work on Android system optimization and application performance stability. My main research interests include Android Framework, Android APM, and Android System Optimization. I also have some experience with Android App development and Linux. I am based in Chengdu and open to professional exchanges.

Technical Sharing

I have been working with Android for a long time, mostly with smartphone manufacturers. I enjoy sharing the knowledge I’ve accumulated. My blog primarily covers Android development, but I plan to add more content related to Android APM, Linux, Android Framework, and tools that improve development efficiency.

I focus on updating four main series:

1. Systrace Series: Explaining key Android operating mechanisms using Systrace to help you quickly grasp Android Framework basics. These articles preserve analysis methods for older tools and systems; for new captures on Android 10 and later, start with the Perfetto series.
2. Perfetto Series: Perfetto is an open-source tracing and analysis project for Android, Linux, and Chrome. It offers more data sources than Systrace and supports SQL analysis of captured data through Trace Processor. Available data depends on the device, OS version, and capture configuration; broader data-source support does not make every feature interchangeable in every environment.
3. Performance Analysis & Practice Series: How to analyze real-world performance problems, which tools to use, and step-by-step analysis guides.
4. Stability & Optimization Series: Covers smoothness, responsiveness, memory, ANR, Crash, and power consumption, including basics, case studies, and tools.

Series entry points: Blog index, Perfetto, and Systrace. See also the official Android system tracing guide.

Connect with Me

I enjoy exchanging ideas and sharing experiences. You can reach me via the following channels:

• Email: Gmail
• X (Twitter): Gracker_Gao
• YouTube: Gracker’s Channel
• Zhihu: Gracker
• WeChat: 553000664 (Please add a note: Blog. If convenient, include Name + Company + App/Framework.)

WeChat Official Account

I irregularly post original articles, technical shares, Android Weekly updates, and giveaways. Feel free to follow!

Donate (Buy Cat Food)

If you find this blog helpful, consider donating to buy cat food for my cat, Doudou!

Android Weekly Newsletter

I run a free newsletter called Android Weekly, summarizing excellent technical articles on Android, iOS, and Linux from the past week. It’s published every Monday morning.

1. Juejin Column: Android Weekly
2. Zhihu Column: Android Weekly

The Performance Knowledge Planet

Status update (2026): The Performance paid community has stopped operating and no longer accepts new members. It previously offered Android performance learning resources, technical discussions, and case studies. The free WeChat groups are a separate service.

See the historical community introduction. The image below is retained for context; its QR code is no longer an enrollment route.

Final Words

You should really ask yourself every moment:
Is what I am doing right now the most important thing I can participate in?
If you are not doing the most important thing,
Why?
———— Aaron