Zero-Growth Stack, Real Gains: How Stack Allocation Can Save 10% CPU in Go
May 7, 2026

Summary
This post details the implementation of a profile-guided approach to optimize Go stack allocation. It describes disabling adaptive stack expansion and shrinking, and instead pre-allocating stack sizes based on CPU profile analysis. The contribution includes a workflow for analyzing pprof profiles, extracting stack usage from binaries, and automating the tuning process to achieve significant CPU savings.