Runtime Internals Checkpoint

1. When does a goroutine stack typically grow in Go?

At every function call When call depth or local usage exceeds current stack At process shutdown only Only during GC

2. What does `go build -gcflags=-m` primarily report?

Scheduler trace events Escape analysis and inlining-related decisions CPU frequency scaling Network packet size

3. How should you treat `sync.Pool` for correctness-sensitive caching?

As a hard cache for all objects As an optional weak cache that may drop entries any time As guaranteed FIFO buffer As thread-local storage