WeChat Client Technology Team

Jul 28, 2021 · Mobile Development

How We Halved Thread Stack Size and Freed 130 MB on 32‑bit Android Devices

This article details three memory‑saving techniques—reducing default thread stack size, releasing a 130 MB WebView reservation, and shrinking the ART heap—implemented via system‑API hooking and the Patrons library, and evaluates their performance impact on 32‑bit Android devices.