xv6-improvments

Improvements to the xv6 operating system for the Operating Systems course at Sharif University of Technology which is based on the MIT 6.S081 Fall 2022 Lab.

Start

• Needs:
  • Add your name to the shell before the $ sign.
  • Write a function to get the current time using GoldFish RTC.
• Links:
  • Answer

System calls

• Needs:

  • Write a system call to trace the system calls.

• Links:

  • Answer
  • MIT 6.S081 Fall 2022 Lab

Shebang

• Needs:

  • Add the ability to run shell scripts in xv6 by adding a shebang line.

• Links:

  • Answer
  • Answer explanation(in Persian)

Page Tables

First Part

• Needs:

  • Implement calloc and realloc methods in xv6.

• Links:

  • Answer
  • Answer explanation(in Persian)

Second Part

• Needs:
  • Speed up system calls by sharing data in a read-only region between userspace and the kernel.
  • Print a page table
• Links:
  • Answer
  • MIT 6.S081 Fall 2022 Lab
  • Answer explanation(in Persian)

Copy-on-Write

• Needs:
  • Implement copy-on-write in xv6.
• Links:
  • Answer
  • MIT 6.S081 Fall 2022 Lab
  • Answer explanation(in Persian)

Locks

• Needs:

  • Make memory allocation core independent. each core should have its own memory allocator.

• Links:

  • Answer
  • MIT 6.S081 Fall 2022 Lab
  • Answer explanation(in Persian)

Performance

• Needs:

  • Improve the performance of the xv6 operating system by making it interrupt driven.

• Links:

  • Answer
  • Answer explanation(in Persian)