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The new Windows subsystem for Linux architecture: a deep dive - BRK3068

Microsoft Developer · 188.1K views · 2019-05-08 · 58:11

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Overview

A Microsoft Build 2019 session in which the WSL team explains the new WSL 2 architecture, which runs a real Linux kernel alongside Windows on a hypervisor. It covers faster file performance, Linux file access from Windows and better application support.

On Hacker News

HN points to it as the authoritative source for how WSL2 works and why Microsoft rebuilt it.

Recommended by 2 HN people across 2 months · HN mentions 2019–2023

Topics

Operating systems & kernelsLinux & open-source ecosystems
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wsl2hypervisormicrosoft buildlinux kernel9p

What people said

mikepurvis · 2020-01 · Recommendation

If you're interested, the Build talk where WSL2 was introduced is pretty in-depth and does a great job of talking about the motivation. See starting around this point: [VIDEO]

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filmgirlcw · 2019-06 · Recommendation

It’s happening at the hypervisor level, and in this case it’s Type 1, so I guess you could but I don’t know how. My ops colleagues are hanging their heads at me right now. You can learn more about the architecture of WSL2 in this video from Build [VIDEO]

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FatalException · 2023-04 · Reference

The WSL2 architecture video lists two motivators from WSL1 based on number of Github issues. One of them being file performance and the other syscall compatibility with some specific examples being the ptrace syscall and Docker compatibilty. [VIDEO] The HN submission for the youtube video also has discussion about the same topics. [LINK]

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Sources

Video by Microsoft Developer, played through YouTube.

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