Windows Wearing Hoodies

Back then before 2016 people always saw linux users..
They wore hoodies and they looked happy because of how free they were. They got jealous and so Microsoft invested a significant amount of resources in creating a virtual environment inside windows that runs linux commands and is executed by the windows operating system this was WSL 1

First they started with the idea of having a windows command translated directly into

Fast forward, and now we have WSL 1 and WSL 2

But have you Ever wondered what happens when you run Linux commands via WSL? Let’s break it down.

In one of last posts i explained the concept of a system call and the journey from shell all the way to the hardware

A system call is how a program asks the operating system to do something for it.

The first one uses a system call translation layer converts Linux system calls into Windows kernel calls.
This interestingly works without any need for a Virtual machine.
The only problem with WSL1 was poor file system performance
But still It was proved to be possible

Then the Second Came for this one it actually runs a real Linux kernel inside a lightweight Hyper V Virtual Machine.
Linux commands execute here without any traslation layer with full system call support. Crazy right

fun thing about wsl2 is it Supports Docker containers