/pintos

Pintos with features added from Stanford CS140 projects

Primary LanguageCOtherNOASSERTION

Pintos

This repository contains the Pintos operating system with features I've implemented which are described in Stanford's CS140 course.

They include:

  • Thread scheduling (in branch master)

    • Non-busy-wait sleeping
    • Priority round-robin scheduling
    • Priority donation with mutexes
    • Multilevel feedback queue scheduler similar to the 4.4BSD scheduler

  • User programs (in branch master)

    • POSIX-like process management system calls like exec and wait
    • Common POSIX-like file I/O systems calls
    • Argument passing to main function
    • Denying writes to executable files of processes

  • Virtual memory (in branch project3)

    • Demand paging
    • Swapping pages to disk blocks
    • Memory-mapped files
    • User process stack-growth