WeChat Client Technology Team

Aug 24, 2015 · Databases

How We Boosted SQLite Chat Performance: Fragment Caching, Table Splitting, and Index Refactoring

This article details a multi‑stage performance overhaul of a large‑scale chat application's SQLite database, covering trace‑based I/O analysis, view caching with Fragments, table‑splitting experiments, index size reduction, and the development of a PageTracer tool to quantify page‑level gains.