qs

Tencent Cloud Developer

Apr 23, 2024 · Backend Development

Performance Optimization of the qs Library: A 5× Speedup Case Study

A Tencent engineer fixed a severe memory‑leak in the qs library’s encode function by processing 30 MB strings in 1024‑character chunks, reducing heap usage from 2.5 GB to 0.48 GB and cutting runtime from 7.9 s to 2.1 s, achieving a five‑fold speedup and memory reduction, and contributed the change as an open‑source pull request.