Unverified90% confidenceFactTime unknown
cgo调用开销的本质源于Go使用可动态增长的goroutine栈（初始仅2KB），而C函数需要固定大小的系统线程栈
1
Sources
90%
Confidence
Long-term
Relevance
5/31/2026
First Seen
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Related Claims
VerifiedA goroutine's initial stack space is only about 2 KB and can dynamically grow and shrink, allowing a single Go process to run hundreds of thousands of goroutines.66% similarUnverifiedGoroutine初始栈仅2KB且可动态扩缩，而Java和C++的操作系统原生线程每个约占1-2MB栈内存64% similarUnverifiedGo语言中每个goroutine仅需几KB栈空间，采用M:N调度模型将goroutine多路复用到少量OS线程上61% similarUnverifiedGo的goroutine初始栈大小仅为2KB（可动态增长），而Python的线程栈默认为8MB60% similarVerifiedThe initial stack size of a Go language Goroutine is only approximately 2–8KB, whereas an operating system thread typically requires 1–8MB.57% similar
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