ECS 150 Course Introduction
Prof. Joel Porquet-Lupine UC Davis 2020/2021
Copyright 2017-2021 Joel Porquet-Lupine CC BY-NC-SA 4.0 International License / 1/9
Who am I?
Current
2018-present: Assistant Professor of Teaching, UC Davis 2017-18: Lecturer, UC Davis
Previously
At first, mostly hardware-oriented with some OS aspects:
2010: PhD at Sorbonne University, Paris, France (Co-sponsored by STMicroelectronics)
Security architecture for multiprocessor Systems-on-Chip
2011-12: Postdoc at Columbia University, NYC, NY
Security mechanisms for heterogeneous multiprocessor Systems-on-Chip
Then, mostly OS-oriented with some hardware aspects:
2013-15: Postdoc at Sorbonne University, Paris, France Porting the Linux kernel to a manycore processor architecture
2015-16: Team leader of the Firmware Development Kit for Googles modular smartphone Project ARA (discontinued)
2/9
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Why ECS 150?
Important steps in CS (undergrad) education
36A/B
Programming
20
Maths
36C
Data structure Algorithms
50
Assembly
120,122A
Theory
140A
Software
150
Software/Hardware
154A
Hardware
Step 3
Step 1
Step 2
3/9
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Why ECS 150?
An OS for every kind of computer system
Laptops, cellphones, microwaves, washers, dryers, dishwashers, coffee makers, refrigerators, televisions, game consoles, cars, planes,
Ever-evolving applications and technologies
Self-driving cars, IoT (Internet of Things), smart homes/cities
New processor architectures, memory topologies, networking technologies
Professional skills
Some of you will actually design and build OSes or components of them Many of you will create systems that use the core concepts of OSes
All of you will build applications that use OSes!
Even in toothbrushes! (runs RTOS Zephyr)
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Why ECS 150?
Concrete objectives
Theory
Operating systems: definition and structure
Syscall API, Kernel, Processes and threads Concurrency between processes/threads
Race conditions, synchronization, deadlocks Storage
Hard-drive/SSD, Filesystems
Memory management and virtual memory
Memory segmentation, paged memory, on-demand paging
Practice
Intensive programming! Three projects
5/9
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Course structure
Monday
Tuesday
Wednesday
Thursday
Friday
Jan 4, 2021 L1.1
5
6 L1.2
7
8 L1.3
D1
11 L2.1
12
13 L2.2
14
15 L2.3
D2
Drop-deadline
18
Holiday
19
20 L3.2
21
22 L3.3
D3
Week #1
Week #2
Week #3
Theory
Lecture
Focused on concepts
Supported by slides
Code examples and demo Asynchronous
Discussion
Projects Synchronous
Tutorials (e.g., Makefile, GDB/Valgrind) or other OS-related topics
Asynchronous
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Course structure
Practice
Programming projects
3 projects to cover the main class topics
P1: Simple shell
P2: User-thread library + synchronization P3: Custom file-system
Fairly intense both conceptually and in terms of programming
To be worked in pairs, in order to develop your collaboration skills
Choose your partner well!
Group work
Self- and peer-evaluation
Individualize each partner project score
Communication
Interactive grading during the last week of class
Very important training for job interviews, work meetings, etc.
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Course structure
Assessment
Theory (50%)
Class quizzes
To keep you on track with lecture/discussion material
3 lowest scores are dropped Two midterms
Comprehensive understanding Timed, open-book
Practice (50%)
Three projects
Graded both on correctness and quality of implementation
Group work evaluations
Individual contribution to projects
Interactive grading
Graded on ability to explain your code, design logic, and project concepts
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Conclusion
Disclaimer
This class is difficult!
In the end, youll become more frustrated than ever, but youll also learn more than youve ever learned in one class.
TL;DR Theres no more hand holding.
Quote from student (WQ17)
But with hard work, its possible to do well!
Grade
WQ17
SQ17
WQ18
SQ18
WQ19
SQ19
FQ19
WQ20
FQ20
A
22%
17%
24%
22%
24%
34%
28%
28%
22%
B
48%
46%
50%
46%
45%
39%
44%
34%
39%
C
25%
32%
22%
27%
18%
15%
21%
26%
26%
D
5%
4%
4%
3%
7%
6.5 %
3%
7%
10%
F
0%
1%
0%
2%
5%
5.5 %
3%
5%
3%
9/9
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