COMS 4995 Advanced Systems Programming

Spring 2025

• COMS 4995-008: Mon & Wed 2:40-3:55pm, 633 Seeley W. Mudd Building

• Two synchronous and in-person exams:

  • Midterm: Wednesday March 26, 2:40-3:55pm
  • Final: Wednesday May 14, 1:10-2:40pm (90 min)

  There are no make-up or alternate exams. If you cannot make any of those exams, please take the course next semester.

• Instructor: Jae Woo Lee

• Office hours: TAs / Jae

• REQUIRED READING: ACADEMIC HONESTY POLICIES

• Anonymous feedback form

• 4157 Dev Guides

HW Due Dates

Date	Assignment
F 1/24	HW0 due

Course Schedule

Lecture 1: W 1/22

Course overview and logistics

• Lecture:
  • L00-overview

• Assignments:

  1. Subscribe to cs4157@lists.cs.columbia.edu – see L00 above

  2. Read the following two documents:
     • http://www.cs.columbia.edu/education/honesty
     • http://www.cs.columbia.edu/~jae/honesty.html

  3. HW0 (50 points, individual assignment) – due Fri 1/24, 11:59pm

     Send an email to Jae containing:

     • To: jae@cs.columbia.edu
     • Subject: “[4157] hw0-UNI” – without quotes, sole space before hw0, UNI replaced with your actual UNI in lowercase
     • Your name, major & school program, year – ex) Jae Woo Lee, Physics, Columbia College, class of 1994
     • Your pledge – see http://www.cs.columbia.edu/~jae/honesty.html
     • CS classes taken and/or other programming background
     • Optionally anything else you want to let us know
     • Optionally attach a picture of you, but please reduce image file size to about 100KB
  4. Start forming your group of up to three people

Git Overview and Internals

• Reading (optional)
  • Pro Git, entirely free online
    • Ch. 2: Git Basics
    • Ch. 3: Git Branching
    • Ch. 10: Git Internals
• Lecture:
  • L01-git-version-control

Lecture 2: M 1/27

Git Overview and Internals (continued)

• Lecture:
  • L01-git-version-control

Lecture 3: W 1/29

Git Overview and Internals (continued)

• Lecture:
  • L01-git-version-control

GitHub

• Reading (optional)
  • Pro Git, entirely free online
    • Ch. 6: GitHub
• Lecture
  • L01-git-version-control

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HW1: malloctopus

• 100 points, due Thu 2/13
  • malloctopus

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Lecture 4: M 2/3

Introduction to Memory Allocators

• Reading
  • CSAPP 9.1, 9.9 (skip 9.9.12)
• Lecture:
  • L02-memory-1

Lecture 5: W 2/5

Introduction to Memory Allocators (continued)

• Lecture:
  • L02-memory-1

Caching, Memory Mapping, and Advanced Allocators

• Reading
  • Caching: CSAPP 6.1 (optional), 6.2, 6.3, 6.4 (optional), 6.5, 6.6 (skim 6.6.1, read 6.6.2-3)
  • Memory mapping: APUE 14.8: read page 525-527 (skim the rest), 15.9: page 576-578
  • Allocators: CSAPP 9.9.13-14, APUE 7.8 “Alternative Memory Allocators”
• Lecture
  • L03-memory-2
• Source code
  • Makefile
  • sum1.c, sum2.c
  • mult-ijk.c, mult-kji.c, mult-ikj.c

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Last updated: 2025-02-04