sysprog21 ORG

The Linux Kernel Module Programming Guide (updated for 5.0+ kernels)

A free, continuously updated book teaching C programmers how to write Linux kernel modules, with working code examples tested against modern 5.x and 6.x kernels and available as a PDF or HTML download.

A self-hosting and educational C optimizing compiler

Compact and Efficient RISC-V RV32I[MAFC] emulator

C Programming Lab: Assessing Your C Programming Skills

A simple native file system for Linux kernel

Complementary Concurrency Programs for course "Linux Kernel Internals"

A linguistic linter for Traditional Chinese (zh-TW)

Traditional Chinese translation of "What Every Programmer Should Know About Memory"

A Game Boy emulator with dynamic recompilation (JIT)

A minimalist RISC-V system emulator capable of running Linux kernel with efficient event-driven scheduling

A virtual wireless device driver for Linux

A minimalist type 2 hypervisor using Linux Kernel Virtual Machine (KVM)

Run Arm64/x86-64 Linux ELF binaries on macOS Apple Silicon

A shabby implementation of Java virtual machine in C

Two Level Segregated Fit (TLSF) memory allocator implementation, BSD License

Concurrency Primer

Virtual camera device driver for Linux

A window system for resource-constrained devices

A simple multitasking OS kernel

A small and efficient web server with 1K lines of C code

Boot a real Linux kernel as an in-process library (LKL) and route intercepted syscalls to it via seccomp

An experimental HTTP server implemented as Linux kernel module

An event-driven and non-blocking web server

RISC-V CPU Labs in Chisel

concurrent linked list implementation

Wolfenstein 3D-style raycasting implementation

Linux-like doubly-linked list

A Linux kernel module which hides itself

RISC-V RV32I[MA] emulator with ELF support

Linux kernel module that calculates Fibonacci numbers

An efficient and portable Game Boy emulator

A complete Material Design 3 implementation in pure C

A collection of virtual input device drivers for Linux

A lightweight echo server implementation in Linux kernel mode

Virtual Linux soundcard driver

Ruby-like high-performance script programming language with JIT compilation

A noise suppression library based on a recurrent neural network

RISC-V system emulator

A collection of lightweight threading utilities

Simulate Linux Completely Fair Scheduler (CFS) using POSIX Threads

An in-process implementation of Xlib layered on top of SDL2

Ternary Search Tree + Bloom filter

A User Space Threading Library

Y86-64 Tools: assembler, simulator, Verilog designs

A flexible Python Kconfig implementation

A simple serial console utility

Lab3: Construct a single-cycle CPU with Chisel

Math expression evaluation as Linux kernel module

A faster "cat" implementation using splice and sendfile system calls

A Linux-only V4L2 mem2mem prototype for measuring the cost of a camera-to-userspace frame path: copies, queueing, context switches, scheduler jitter, cache behavior, and a small deterministic kernel-side preprocessing step.

A simple integer calculator using JIT compilation

A Linux device driver that simulates interrupts

Hardware-accelerated Nyancat animation on VGA display, implemented in Verilog RTL

An incomplete arbitrary-precision integer arithmetic library

Generator Bootcamp Material: Learn Chisel the Right Way

A collection of intrusive data-structures for C

Leibniz formula for π

A simple C Thread pool implementation

Implement prefix search using ternary search tree

A minimalist C implementation of the Lempel-Ziv 77 compression algorithm

sample phonebook program to illustrate the impact of cache miss

JIT compiler from scratch, derived from Nick Desaulniers' great work

Buddy Memory Allocator

A Tic-Tac-Toe Game Engine implemented as Linux kernel module

A secure, sandboxed execution mechanism that enables deterministic input, processing and output

Small ray tracing program for performance evaluation

Quake for embedded devices

Doom classic port to lightweight RISC‑V

Linux kernel module examples about kfifo

A lightweight software synthesizer designed for resource-constrained environments.

A text editor in less than 1000 LoC with syntax highlight and search

Improved CS:APP Data Lab

GECOS: A lock-free synchronization mechanism

A simple Linux kernel module that kills ptrace tracer and its tracees

minimal instruction set and assembler/compiler for "Hello World" execution

Measure peak bandwidth of sequential memory accesses and the latency of random memory accesses

Sample matrix implementation illustrating object-oriented techniques in C99

merge sort on singly-linked list utilzing POSIX Thread

Thread-Metric RTOS Test Suite

A Linux kernel module capable of performing concurrent sorts

An advanced real-time operating system designed specifically for deeply embedded applications.

A Linux kernel module to allow user processes being handed out with LKM based scheduler

Math expression evaluation as Linux kernel module, fixed-point implementation

Circular Buffer implementation with mmap(2) *incomplete*

Microbenchmark for unaligned memory access

Demo pages for rv32emu in user-mode and system emulation

Rust-written Real-Time Tasks on Eclipse ThreadX

quizzes shipped in Computer Architecture (2025 Fall)

A selection of ANSI C benchmarks and programs useful as benchmarks

Lightweight JIT Compilation Framework

Simple 3-stage pipeline RISC-V processor

Ilustrate how balanced ternary works

Evaluate the effects of prefetching

build a phonebook program by concurrent linked list

A dependency-free version of libslirp

rv8 benchmark suite

Assignment 2: Classify

The prebuilt binary files used by rv32emu

A lightweight POSIX Thread implementation

Arm Assembler language definition for the LaTeX listings package

concurrent malloc benchmark

SoftFloat release 3

Test the ability of C compilers performing Tail Call Optimization

No description.

Torbjorn Granlund's soft floating-point emulation library

Programs in RISC-V assembly

Tickless hierarchical timing wheel

Evaluate implementations of count leading zero

(Incomplete) in-memory quotient filter

A minimal mark-and-sweep garbage collector

Brainf*ck runtime engine

Embenc free and open source benchmark suite

A Super Fast Multithreaded malloc() for 64-bit Machines