Go Tuning

How to Tune Go GC with GOGC and GOMEMLIMIT

How Go's garbage collector works, what GOGC and GOMEMLIMIT actually control, how the Pacer schedules GC work, and how to tune these for your service.

Pre-Allocating Slices and Maps in Go: When It Matters

How Go's append and map growth work, when pre-allocation actually helps, benchmark results across slice sizes, and practical rules for hot-path code.