Memory Mechanics In Go - Stack vs Heap

Mon, 12 Jan 2026 00:10:00 +0530

We often talk about “fast” code in terms of Big O notation or algorithmic complexity. But in systems programming languages like Go, “fast” is often a function of where your data lives in memory.

When optimizing for high throughput, efficient loops and database indexes are only part of the story. Eventually, you have to talk about the Stack and the Heap.

Understanding the difference isn’t just trivia. It is the difference between a service that hums along at 100k OPS with flat latency, and one that chokes on Garbage Collection (GC) pauses every few seconds.

Internals on Lorbic

Memory Mechanics In Go - Stack vs Heap