代码结构
malloc.go
Memory allocator
sizeclass.go
span按大小区分的 类型定义
mbitmap.go
type and heap bitmaps
mgc.go
Garbage collector (GC)
mcache.go
Per-thread (in Go, per-P) cache for small objects.
central.go
Central free lists
mheap.go
Page heap
Memory allocator
span按大小区分的 类型定义
type and heap bitmaps
Garbage collector (GC)
Per-thread (in Go, per-P) cache for small objects.
Central free lists
Page heap
原文：https://www.cnblogs.com/thrillerz/p/8593249.html