PintOS Project

2024 Last modified at: 2025-04-22 6:25 | Links: GitHub URL

“PintOS” is an educational operating system project where I implemented core OS functionalities to deepen my understanding of system architecture.

I built essential components of a functioning operating system, gaining experience with low-level systems programming while developing practical skills in memory management and concurrency control.

For more information:

• 📎 GitHub Repository
• 📔 Dev Diary

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Project Info

• Name: PintOS Project
• Genre: Operating System Implementation
• Type: Individual Project
• Tech Stack: C
• Development Period: May 2024 - June 2024

Core Components Implemented

🧵 Project 1: THREADS

• Priority-based scheduling with multilevel feedback queue
• Semaphore implementation for synchronization primitives
• Priority donation mechanism to solve priority inversion problems

🔄 Project 2: USER PROGRAM

• Comprehensive system call handlers for process management
• File operation system calls including read, write, open, and close
• Memory allocation system calls with proper validation

💾 Project 3: VIRTUAL MEMORY

• Page replacement algorithm implementation (Second-Chance)
• Swap mechanism for efficient memory utilization
• Copy-on-Write optimization for process forking
• Memory-mapped files for efficient I/O operations