Dev Tools · 1h ago
Go 1.26's Green Tea GC: 40% Faster at What?
Go 1.26's new Green Tea garbage collector improves memory locality by marking pages instead of objects, reducing CPU cache misses. The 40% speedup applies only to GC-bound workloads, not general service performance. Misunderstanding the benchmark has led to inflated claims in developer interviews.
Meridian48 take
The 40% figure is real but narrowly scoped—don't expect a free speedup for your typical web service.
go-1.26garbage-collection