Status update (reviewed October 2026): The Performance’s paid Knowledge Planet closed in 2026 and no longer accepts new members. The 2023 introduction, plans, and QR codes below are retained as history, not as current enrollment or service commitments. For public material, see the blog navigation and Android Internal Wiki.
The original introduction follows:
Currently, the “Knowledge Planet” (ZSXQ) is a paid community. The income mainly goes towards blog server costs and buying cat food for my cat, Douzi. It also serves as my motivation to keep updating the blog. If you find the content helpful, consider joining to support the work! Thank you very much!
The community is named The Performance, a circle for sharing Android performance optimization. I am the host—an Android performance developer at a top-tier smartphone manufacturer in China with years of experience in performance, power consumption analysis, and case studies. This community provides a one-stop-shop for performance knowledge, covering fundamentals, methodologies, tools, and valuable real-world case analyses.
As Android evolves, performance optimization has become a top priority for both smartphone manufacturers and app developers. However, performance is a broad topic, involving everything from the Kernel to the Framework and Apps. Each layer requires deep knowledge. Our team established this technical circle to provide high-quality sharing and systematic learning for Android performance optimization.
All members are welcome to share knowledge and cases, ask or answer questions, and grow together. We focus on the following topics:
The historical content plan (labels marked with ##) follows. I had crossed out some plans after taking over the community on my own; there was only so much I could keep up with:
- Trace Analysis — 1v1 Trace teaching and analysis (Systrace, Perfetto, SimplePerf, etc., by appointment) and various real-world case analyses.
#The Performance# — Early access to chapters of the “Android Performance Optimization - Systematic Course“ e-book. While there are many high-quality resources available, we aim to provide a truly complete and systematic guide covering principles, tools, and practices for both App and System developers.- #Performance Tools# — Sharing performance analysis tools and usage methods used in Android development. I also offered 1v1 video guidance for Systrace/Perfetto. Some operations are hard to explain in a static article; showing them over a video call is much clearer.
- #Case Analysis# — Summarizing typical case analysis logic and discussing cases provided by community members. Real-world cases help learning. Before sharing a trace, confirm permission and inspect sensitive information in the underlying data. Masking a screenshot does not sanitize the trace file itself; see Perfetto’s explanation of sensitive trace data.
- #Classic Interpretation# — Deep dives into classic solutions, library analyses, and reviews of top-tier courses like “Android Development Master Class.”
- #Knowledge Sharing# — Curated excellent articles, blogs, and open-source tools from industry experts.
- #Knowledge Accumulation# — Highlights from WeChat group chats, Q&As, and blog discussions.
- #Performance Interviews# — Collection and analysis of Android performance-related interview questions.
- #Programming Languages# — Sharing tips and techniques for relevant programming languages.
- #Efficiency Improvement# — Methods and tools to improve developer productivity and engineering efficiency.
- #Industry Trends# — First-hand interpretations of new performance technologies, including:
- Reports from industry and academic summits.
- New papers, books, and videos.
- Performance updates in major Android versions.
- Performance content related to new Android hardware.
- Deep dives into performance-related open-source projects.
- #Expert Sharing# — Regular experience sharing and case sessions with industry experts.
- #Job Referrals# — Internal referral opportunities at major tech companies.
Paid Planet QR Code
Enrollment has closed. This is a historical QR code; do not use it to join or pay.
Free Planet QR Code
There was also a free version for general knowledge sharing. The QR code is historical, and its current enrollment status has not been verified:
WeChat Official Account
Follow the WeChat account for more updates:
WeChat Group
The historical WeChat group covered Android performance topics (Responsiveness, Smoothness, ANR, Crash, Memory, Power, etc.). Its QR image says “Valid until 1/7” and is expired; use the contact below for an invitation.
Please keep discussions relevant to the themes. Avoid off-topic chatter or vendor debates to maintain the group quality.
We also have groups for casual chat, running, reading, and GPT. You can message me privately to join.
If the group is full (over 200) or the code expires, add me on WeChat (ID: 553000664).
Other Information
- Blog: https://www.androidperformance.com/en/
- Free Knowledge Planet (historical entry; current status unverified): https://t.zsxq.com/ZZ337Am
- Paid Knowledge Planet (closed; original URL retained as a record):
https://t.zsxq.com/Fuvvf6y - Zhihu: https://www.zhihu.com/people/gracker
- Jike: https://okjk.co/pJbjFa
- Android Weekly (CN): https://androidweekly.zhubai.love/
- WeChat Account: AndroidPerformance
- Juejin: https://juejin.cn/user/1816846860560749