BirdNest Tech Talk

Oct 31, 2025 · Backend Development

How Go’s New Green Tea GC Slashes CPU Overhead by Up to 40%

The article examines Go 1.25’s experimental Green Tea garbage collector, explains why the traditional mark‑sweep approach hurts modern CPUs, details the page‑oriented redesign and its AVX‑512 vector acceleration, and shows how these changes can cut GC‑related CPU usage by 10‑40%.