Performance Optimization Articles

Android Dumpsys Deep Dive: System Service dump() to adb Debugging

A practical deep dive into Android dumpsys internals, covering Binder IPC, dump permission gates, buffer behavior, and scripts for memory leaks, ANR snapshots, and Binder storms.

Android ConstraintLayout Deep Dive: From Cassowary Solving to Compose Constraints

A deep look at ConstraintLayout's Cassowary constraint solver, its O(n^3) performance ceiling, and how Compose constraints shift layout work toward deterministic O(n) placement.

Progressive Android Compose Migration from Views to Declarative UI

A practical review of progressive migration from Android Views to Jetpack Compose, covering infrastructure, phased replacement, list performance, interop governance, rollout validation, and real performance data.

System-Level Android Performance Analysis and Tuning with Systrace and Perfetto

When Android apps suffer from jank, slow startup, high power use, or sluggish response, app-level profilers are often not enough. Perfetto and Systrace expose CPU scheduling, Binder, rendering, I/O, memory, and power behavior across the whole system.

Android BroadcastReceiver End to End: Registration to BroadcastQueue

A deep dive into Android BroadcastReceiver dispatch, covering dynamic and static registration, BroadcastQueue scheduling, ordered broadcasts, sticky broadcast deprecation, background limits, and async timeout handling.

Android Rendering and the Graphics Stack: A Deep Dive

A full walkthrough of Android rendering, from View invalidation, Choreographer, and RenderThread to BufferQueue, SurfaceFlinger, jank diagnosis, and optimization.

Android BLE End to End: GATT, Scanning, and Long-Lived Connections

A practical guide to Android BLE development, covering the GATT protocol stack, scan power tradeoffs, reconnection, Doze handling, and multi-device long-connection management.

Android App Battery Optimization with Battery Historian

A practical Android battery optimization guide using Battery Historian and Perfetto to reduce Wakelock, Alarm, and Network drain through staged background policies and CI checks.

Inside Android AlarmManager Scheduling

A full-path breakdown of Android AlarmManager scheduling, from AlarmManagerService Binder calls to RTC wakeups, Doze limits, batching, and dumpsys debugging.

Inside Android ART Garbage Collection

A practical look at ART garbage collection, from Dalvik mark-sweep to CMS, Concurrent Copying, generational GC, allocation storms, LOS behavior, and startup tuning.

Android DEX Bytecode and MultiDex: The Full Loading Pipeline

A full walkthrough of Android DEX bytecode limits, the real source of the 65,536 method ceiling, MultiDex splitting, PathClassLoader loading, and production pitfalls.

Advanced Android Network Programming and Optimization (1): Networking as the App's Lifeline

Part 1 of Advanced Android Network Programming and Optimization: protocol evolution from HTTP/1.1 to HTTP/2, QUIC, and HTTP/3.

Advanced Android Network Programming and Optimization (2): OkHttp Internals

Part 2 of Advanced Android Network Programming and Optimization: OkHttpClient, Dispatcher, ConnectionPool, interceptors, EventListener, DNS, and TLS.

Advanced Android Network Programming and Optimization (3): Advanced Retrofit Usage

Part 3 of Advanced Android Network Programming and Optimization: Retrofit extensions, gRPC, WebSocket, weak-network tuning, caching, retries, and monitoring.

Advanced Android Network Programming and Optimization

A deep dive into Android networking, covering HTTP/2, QUIC, OkHttp internals, Retrofit extensions, gRPC, WebSocket, weak-network tuning, and monitoring.

Android App Startup Optimization Program

A systematic Android startup optimization guide covering startup types, cold-start phases, Perfetto and Macrobenchmark diagnostics, Baseline Profiles, and monitoring.