The Linux Virtual File System
Linux allows different filesystems to be accessed via a kernel software layer called Virtual File System (VFS). VFS handles all the system calls related to a...
Posts
Operating System
Zombie process
Zombie process is the process that finished execution but still has an entry in the process table; and the exit status has not been read by the parent proces...
How computer boots series - Part 1d: Init Process
Welcome! You are about to start on a journey to learn about booting process in different operating systems. For your reference, below is a list of the articl...
How computer boots series - Part 1c: Kernel and Initial Ramdisk
Welcome! You are about to start on a journey to learn about booting process in different operating systems. For your reference, below is a list of the articl...
How computer boots series - Part 1b: The Bootloader
For your reference, below is a list of the articles in this series:
How computer boots series - Part 1a: BIOS and Master Boot Record
For your reference, below is a list of the articles in this series:
Brief introduction to OS concepts: interrupts, system call, context switch
In the previous post, We mentioned system call, interrupt, signal, etc. Let’s try to understand them in this post.
What happen when you type command into Linux terminal
Any operating system is built upon 4 foundational subsystems: process management, memory management, filesystem and I/O management. Process management is pro...
Networking
TCP series - Part 3: Congestion control
In this series, you will learn about crucial (but easily overlooked) details of the most important (and complicated) protocol in computer networking, aka TCP...
TCP series - Part 2: connection termination
For your reference, below is a list of the articles in this series:
TCP series - Part 1: connection establishment
In this series, you will learn about crucial details of the most important (and complicated) TCP protocol. For your reference, below is a list of the article...
Access a website on the Internet
Let’s walk through an example where we need to access a website on the Internet, say “distributedsystemsblog.com” from browser or curl command on terminal. W...
Projects
Shortest path problem in unweighted graph
Breadth-first search (BFS) algorithm is one of two elementary graph algorithms that extensively used for graph traversal and searching problems.
Tabletop game
Because we love Root!
Root is a fantastic asymmetrical game with 8 completely different factions competing over the race to 30 victory points. The artwork is amazing, and the asym...