---
title: "Discussion on \"Why Go Handles Millions of Connections: User-Space Context Switching, Explained\" | Hashnode"
description: "Discussion on \"Why Go Handles Millions of Connections: User-Space Context Switching, Explained\". Go isn't magic and it isn't faster than Java. It just stops asking the kernel to help. A first-principles look at goroutines, 2KB stacks, and why high-frequency trading engines chase the exact same answer."
url: "https://hashnode.com/posts/why-go-handles-millions-of-connections-user-space-context-switching-explained/69e1028e74ceac3b75e3f7d5"
---

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# [Why Go Handles Millions of Connections: User-Space Context Switching, Explained](https://harrisonsec.hashnode.dev/why-go-handles-millions-of-connections-user-space-context-switching-explained?utm_source=hashnode&utm_medium=feed)

Go isn't magic and it isn't faster than Java. It just stops asking the kernel to help. A first-principles look at goroutines, 2KB stacks, and why high-frequency trading engines chase the exact same answer.

Apr 16 · 7 min read · harrisonsec.hashnode.dev  
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-   [#concurrency](https://hashnode.com/tag/concurrency)
-   [#distributed-systems](https://hashnode.com/tag/distributed-systems)
-   [#go](https://hashnode.com/tag/go)
-   [#golang](https://hashnode.com/tag/golang)
-   [#goroutines](https://hashnode.com/tag/goroutines)

## Written by

[Harrison Guo](https://hashnode.com/@harrisonguo)

@harrisonguo · WhiteRock, CA

  
[View profile](https://hashnode.com/@harrisonguo)

Security engineer and distributed systems practitioner. Writing about systems internals, performance, security research, and AI applications. Building harrisonsec.com.

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