講座 Note on Linux 核心設計: 發展動態回顧 Note on Linux 核心設計: 不只挑選任務的排程器 Note on Linux 核心設計: 針對事件導向的 I/O 模型演化 Note on Linux 核心設計: 期末專題回顧 Note on Linux 核心設計: 作業系統術語及概念 linux2025q1 linux2025q1-week1

Setup Install the Ultimate vimrc plugin manager plugin 只會愈裝愈多，因此需要一個掌管所有 plugins 的管理者vundle (Newer) Minimalist Vim Plugin Manager:PlugInstall to install plugins. Problem: cannot give root permission to make ​​ Plug 'universal-ctags/ctags', { 'dir': '~/.ctags', 'do': 'sudo make install' } no need, just put the Shorthand notation:

:::spoiler Table Of Content ::: Installation and settings 建議使用 Ubuntu Linux 20.04 LTS (或版本更高的發行套件)，Linux 核心必須在 v5.4 以上，否則課程提供的範例和作業無法正確執行。 Try installation on Apple MacBook by multipass project步驟 from teacher: brew install multipass # 安裝套件multipass launch -c 2 -d 10G -m 2G -n ubuntu # 建立名為 ubuntu 的虛擬機器環境，其中 -c 表示 CPU 數量、-d 表示儲存裝置的容量、-m 表示主記憶體空間multipass shell ubuntu # 一旦上述的虛擬機器環境建立，透過本命令即可存取到 Ubuntu Linuxuname -a # 取得 Ubuntu Linux 核心版本資訊lsb_release -a # 取得 Distro資訊，如：Ubuntu release

2021q1 Week1 lecture note contributed by < asahsieh > Ref.: GNU/Linux 開發工具 GUN/Linux開發工具 Linux study#Installation GNU Debugger (GDB) Update kernel to the Ubuntu Linux 24.04-LTS

contributed by <asahsieh> :::spoiler Table of Content ::: 熟悉Git和Github操作 Git offical docSCM tools: stands for Source Code Management Git offical book

Randomization Soft Constraints Soft constraints are default constraints which hold true until contradicted by another similar constraint.Ref.: http://vlsiwithvikas.blogspot.tw/2016/05/system-verilog-soft-constraints.html Unique unique { open_range_list- } References:SystemVerilog Unique Constraint can only be used on numeric variable

Chapters (to be based on <UVM 1.2 User's Guide>) UVM Study UVM Sequence UVM_EVENT_POOL UVM RAL UVM Questions Know-how from SiFive Config should be centralized for easily debugging

基礎 Python 資料類型 (data type)整數：integers 浮點數：floats 布林：booleans 什麼是 物件 (object)? 什麼是 變數 (variable)? 基本的 運算子 (operator)

Computer Architecture (Fall 2021) Lecture notes [x] Computer Architecture Week1 [x] Computer Architecture Week2 [x] Computer Architecture (Fall 2021) Week3 [x] Computer Architecture (Fall 2021) Week4 [ ] Computer Architecture (Fall 2021) Week6 [ ] Computer Architecture (Fall 2021) Week7 [ ] Computer Architecture (Fall 2021) Week 8: Datapath and Control [ ] Computer Architecture (Fall 2021) Week 9: Pipeline

[TOC] 藉由 perf，應用程式可以利用 ==PMU (Performance Monitoring Unit)==, tracepoint 和核心內部的特殊計數器 (counter) 來進行統計，另外還能同時分析運行中的核心程式碼，從而更全面了解應用程式中的效能瓶頸。 perf 基本原理是對目標進行取樣，紀錄特定的條件下所偵測的事件是否發生以及發生的次數。 例如++根據 tick 中斷進行取樣++，即在 tick 中斷內觸發取樣點，在取樣點裡判斷行程 (process) 當時的 context。假如一個行程 90% 的時間都花費在函式 foo() 上，那麼 90% 的取樣點都應該落在函式 foo() 中。 Perf 可取樣的事件非常多，可以分析 Hardware event，如 cpu-cycles、instructions 、cache-misses、branch-misses …等等。

[TOC] M. Morris Mano, Charles R. Kime; Person Prentice Hall, 2003 Chapter/section list to study ::: spoiler Study list [ ] Chapter 5 [ ] until 5-4

[TOC] online docs of GCC 3 GCC Command Options 3.13 Options Controlling the Preprocessor online link gcc -E -o out_file.i in_file.c

[TOC] 5.1.1.1 Program structure 前置處理器 Definition in C99, 5.1.1.1 Program structure p1:

Why 0.1 + 0.2 != 0.3?[^1] Prime Factor 質因數: 若b為a的因數，且b為質數，則稱b為a的質因數；如60的質因數有2、3、5。 從內文的描述 Some interesting fact about Prime Factor: There is only one (unique!) set of prime factors for any number. Prime factorizations can help us with divisibility, simplifying fractions, and finding common denominators for fractions.

contributed by < asahsieh > 作業說明 :::spoiler 作業 TODO list [X] 開啟 Address Sanitizer，修正 qtest 執行過程中的錯誤 先執行 qtest 再於命令提示列輸入 help 命令，會使 開啟 Address Sanitizer 觸發錯誤，應予以排除 [ ] 運用 Valgrind 排除 qtest 實作的記憶體錯誤，並透過 Massif 視覺化 “simulation” 過程中的記憶體使用量，需要設計對應的實驗

Motivation I love Surfing. I usually go surfing alone, so I can't take pictures of my surfing by myself. The famous camera for sports, GoPro, it may not suitable to shoot video from shore, because it can only shoot a fixed region. When a guy surf, he'll move around to find waves. So we want to make a device to dynamically capture the moving of surfers. Similar Products SOLOSHOT Objective Make a camera which can detect one of surfers who is catching a wave and no tag wearing required. The technique Motion detection is considered to use, so called MotionPro, means that ++a GoPro-like device with Motion detection++.

測驗 η 測驗 β-1 說明上述程式碼的運作原理 mask的用處是取出輸入sz的alignment以下的位元做檢查。 alignment的記憶體對齊地址必須為給定的alignment的倍數，即在alignment以下的位元都必須為0 return value的部份

contributed by < asahsieh > 題目連結 電腦環境 Hardware: Processor 2.7 GHz Dual-Core Intel Core i5 Memory 16GB 1867 MHz DDR3