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Total : 140

2026

11/15 SmartPerfetto 1.19.0: A New Analysis Engine, and the Work Around It
11/11 100 Years Life: Checkups, Sleep and Workouts in One Health Record
10/06 SmartPerfetto Update Log
09/19 AIW: An Android Systems and Performance Ebook You Can Check Against Source
05/05 What I Am Building
05/04 Android Perfetto Series 13: Perfetto SDK, Track Event, and App Field Tracing
05/04 Android Perfetto Series 11: PerfettoSQL, Trace Processor, and Regression Detection
05/04 Android Perfetto Series 12: Trace Dataflow and Data Loss Troubleshooting
05/04 Android Perfetto Series 14: heapprofd and Memory Profiling
05/04 Android Perfetto Series 15: Boot Traces, Long-Running Field Traces, and Capturing Intermittent Problems
05/04 Android Perfetto Series 18: Response Latency in Practice, from Input Events to First-Frame Feedback
05/04 Android Perfetto Series 17: Domain Automation, Issue Checklists, and Platform Infrastructure
05/04 Android Perfetto Series 16: GPU, Power Counters, and Hardware Bottleneck Analysis
04/29 SmartPerfetto Is Open Source: A Perfetto AI Assistant for Android Trace Analysis
04/28 Long-form Forecast: Phones May No Longer Start from Apps: How Agent OS Takes Over the Task Entry Point
04/10 SmartPerfetto Architecture Q&A: 8 In-Depth Technical Questions
04/10 From Trace to Insight: Harness Engineering in SmartPerfetto AI Agent
03/10 OpenClaw FAQ: Token Costs, Use Cases, Local Models, Privacy, and Day-to-Day Experience
03/08 After Running OpenClaw Locally for Three Weeks, I Realized It's Not a Chatbot

2025

11/16 Android Perfetto Series 10: Binder Scheduling and Lock Contention
11/12 Android Perfetto Series 9: CPU Information Interpretation
08/05 Android Perfetto Series 8: Understanding Vsync Mechanism and Performance Analysis
08/02 Android Perfetto Series 7: MainThread and RenderThread Deep Dive
04/26 Android Perfetto Series 6: Why 120Hz? Advantages and Challenges
03/26 Android Perfetto Series 5: Choreographer-based Rendering Flow
02/08 Android Perfetto Series 4: Opening Large Traces via Command Line
02/08 Android ANR Series 1: Understanding Android ANR Design Philosophy
02/08 Android ANR Series 2: ANR Analysis Methodology and Key Logs
02/08 Android ANR Series 3 - ANR Case Studies

2024

05/21 Android Perfetto Series 3: Familiarizing with the Perfetto View
05/21 Android Perfetto Series 2: Capturing Perfetto Traces
05/21 Android Perfetto Series 1: Introduction to Perfetto
03/27 Android Perfetto Series Catalog
01/01 Reflections on 2023: Health, Career, and the Future

2023

08/21 Performance Considerations in Operating System Design
05/14 Can an App Really Do Whatever It Wants With System Permissions?

2022

03/27 The Performance Community Tea Talk - Episode 1
03/13 Systrace Thread CPU State Analysis Tips - Running
03/13 Systrace Thread CPU State Analysis Tips - Sleep and Uninterruptible Sleep
01/21 Systrace Thread CPU State Analysis Tips - Runnable
01/07 Android Performance Optimization: Techniques, Methods, and Tools
01/07 Techniques, Philosophy, and Tools for Android Performance Optimization
01/03 2021 Year in Review: Baby, Career, and Growth

2021

10/27 What Should Be in a Book About Android Smoothness?
10/26 Android System Development Series (1): Downloading, Compiling, and Flashing Android 12
09/13 Android Systrace Responsiveness in Action 2 - Responsiveness Analysis - Using App Startup as an Example
09/13 Android Systrace Responsiveness in Action 1 - Understanding Responsiveness Principles
09/13 Android Systrace Responsiveness in Action 3 - Extended Knowledge on Responsiveness
04/24 Android Systrace Smoothness in Action 1 - Understanding Jank Principles
04/24 Android Systrace Smoothness in Action 2 - Case Analysis - MIUI Launcher Scroll Jank Analysis
04/24 Android Systrace Smoothness in Action 3 - FAQs During Jank Analysis

2020

08/20 Why is the Weibo Experience Better on Huawei? A Technical Analysis and Reflection
05/26 An Incident Caused by a 'Leap' Month - Analysis of Samsung System Reboots
05/07 Analysis of Android App Chain Wakeups
02/14 Android Systrace Basics - SurfaceFlinger Explained
02/03 Android Developer Learning Path (2020 Edition)
01/28 My 2020 Reading List

2019

12/21 Android Systrace Basics - CPU Info Interpretation
12/15 Android Systrace Basics - Triple Buffer Explained
12/06 Android Systrace Basics - Binder and Lock Contention Explained
12/01 [Sticky] Blog Article Directory
12/01 Android Systrace Basics - Vsync Explained
11/18 Comprehensive Record of Android App Startup Optimization
11/18 Complete Guide to Android App Startup Optimization
11/06 Android Systrace Basics - MainThread and RenderThread Explained
11/04 Android Systrace Basics - Input Interpretation
10/24 Analysis of 'Zombie Animations' in the Android Background
10/22 Detailed Explanation of Android Rendering Mechanism Based on Choreographer
09/18 Overview of Jank and Frame Drops in Android - Low Memory
09/17 Case Study: Debugging the Android Launcher Kill Problem
09/05 Overview of Jank and Frame Drops in Android - System Layer
09/05 Overview of Jank and Frame Drops in Android - Application Layer
09/05 Overview of Jank and Frame Drops in Android - Methodology
09/01 A Detailed Guide to Activity Launch Modes in Android
07/27 Detailed Explanation of Hardware Layer in Android
07/27 A Deep Dive into Hardware Layers in Android
07/23 Android Systrace Basics - Prerequisites for Analyzing Systrace
06/29 Android Systrace Basics - SystemServer Explained
05/28 Android Systrace Basics - Introduction to Systrace
05/27 Android Systrace Basics - Why 60 FPS?
05/26 Android Systrace -- Series Article Index
05/15 A New Era of Smoothness: Thoughts on 90Hz on Android
04/07 Sharp Tools - Efficient Tool Recommendations
04/07 Liqi - High-Efficiency Tools Recommendation
01/21 Case Analysis of System-wide Stutter Caused by Android Accessibility Service
01/12 2018 Best Items Recommendations - A Reward for Your Hard Work

2018

11/01 Setting Up the Android System Development Environment
10/25 Lu Qi: Besides Good Code, What Makes an Engineer Excellent?
10/01 The Programmer's Apprenticeship - 08: The Beauty of Reading
09/30 The Programmer's Apprenticeship - 07: Games and Programming
09/29 The Programmer's Apprenticeship - 06: All About the Internet
09/28 The Programmer's Apprenticeship - 05: Know Your Users
09/27 The Programmer's Apprenticeship - 04: Reflections on Testing
09/26 The Programmer's Apprenticeship - 03: Web Design Principles
09/20 The Programmer's Apprenticeship - 02: The Way of Programming
09/19 The Programmer's Apprenticeship - 01: The Art of Fighting Back
09/13 Does the Android System Not Release Memory?
08/13 Some Thoughts on Android System Fluency
05/20 Zhihu: Save Your StartingWindow
05/07 [Sticky] Android Performance Optimization: Must-Know Skills and Tools
01/06 2017 Best Recommendations - A Reward for Hard-Working Self
01/06 2017 Annual Best Recommendations - Reward Yourself for Hard Work

2017

04/23 Reflections on Work and Growth (2017)

2016

04/05 Android Bottom Navigation Spec Part 2: Style, Behavior, and Dimensions
04/05 Android Bottom Navigation Spec Part 1: Usage

2015

12/31 How to Calculate App Startup Time in Android?
12/29 Android App Launch Optimization: Implementation and Principles of DelayLoad (Part 2)
11/18 Android App Startup Optimization - DelayLoad Implementation and Principles (Part 1)
08/12 RenderThread Workflow in Android hwui
08/05 Java 7 HashMap Source Code Analysis
07/20 Android Code Memory Optimization Suggestions - OnTrimMemory
07/20 Android Code Memory Optimization Suggestions - Android Resources
07/20 Android Code Memory Optimization Suggestions - Android (Official)
07/20 Android Code Memory Optimization Suggestions - Java (Official)
05/29 Enabling Multi-Window Mode on Nexus 6 with Android M
05/06 A Detailed Guide to Java Singleton Pattern
04/19 Android Performance Patterns: Render Performance
04/19 Overview of Android Performance Patterns
04/19 Android Performance Patterns: Profile GPU Rendering
04/19 Android Performance Patterns: Understanding Overdraw
04/19 Android Performance Patterns: Understanding VSYNC
04/11 Android Memory Optimization (3) - Viewing Original Bitmaps in MAT
04/11 Android Memory Optimization (1) - Getting Started with MAT
04/11 Android Memory Optimization (2) - Advanced MAT Usage
03/31 Android Performance Case Study Follow-up
03/15 Android Tips Round-Up, Part 3
03/15 Android Tips Round-Up, Part 5
03/15 Android Tips Round-Up, Part 4
02/04 Compiling Android Lollipop Firmware for Nexus 5
01/30 Android Performance Optimization - Introduction to Systrace (Part 1)
01/16 Viewing Android Lollipop Source Code with Android Studio
01/13 Android Performance Optimization: Overdraw - Practical Application

2014

10/20 Android Performance Optimization: Overdraw - Theory
06/03 Android Tips: How to Prevent EditText from Automatically Getting Focus
05/31 Android Tips Round-Up, Part 2
05/28 Android Tips Round-Up, Part 1
05/02 Android Tools - Log2File
04/01 Android Service: Building Your Own Notification Center (2) - Accessibility Service in Practice
03/25 Ubuntu: Adb Command Cannot Find Device
03/17 Android Service: Building Your Own Notification Center (1) - Introduction to Accessibility Service

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