Why Android Threads Stall: Inside Linux CFS, RT, Fair Scheduling and cgroup Limits

This article explains why many Android threads appear idle despite free CPU cycles, by dissecting Linux's five scheduler classes, the distinction between RT and fair scheduling, the role of virtual runtime and weight, and how cgroup cpu.shares can reshape resource distribution, supported by concrete systrace experiments.

Android performanceCFSLinux scheduler

0 likes · 17 min read

Why Android Threads Stall: Inside Linux CFS, RT, Fair Scheduling and cgroup Limits

DaTaobao Tech

Feb 23, 2022 · Mobile Development

APM Page Load Time Calibration: From 0 to 2

The article chronicles Taobao Android’s APM page‑load‑time calibration, moving from the basic 8060 visible‑calculation algorithm to asynchronous, element‑aware methods with view tagging, page‑specific thresholds, custom root views, and H5/Weex support, dramatically improving accuracy by excluding non‑essential elements.

8060 algorithmAPMAndroid performance

0 likes · 16 min read

APM Page Load Time Calibration: From 0 to 2

Coolpad Technology Team

Nov 24, 2021 · Mobile Development

Analyzing Frame Drops on High-Refresh-Rate Android Devices: A Case Study with WeChat

This article investigates why a test Android phone exhibits noticeable frame drops when scrolling WeChat compared to a reference Honor X20, examining Vsync timing, CPU frequency scaling, and rendering pipelines, and proposes a CPU‑boost fix that restores smooth 120 fps performance.

Android performanceCPU FrequencyMobile Optimization

0 likes · 8 min read

Analyzing Frame Drops on High-Refresh-Rate Android Devices: A Case Study with WeChat