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德明利V7 開卡fail

全部init都會遇到unKnow!!! apply Hynix policy

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分別下vcmdgetnfid的結果
18939

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18822

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18836
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18773
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18971
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18847
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PASS sample
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SIMULATION fAIL

AutoTest_Designer2_Duke_Test2

Mar 5, 2024
記憶體管理

部分節錄自概觀 CPU 快取 CPU 生成邏輯地址，其中包含page number和page offset。 page number用於對page table進行索引以獲取對應的page frame number，一旦我們找到physical memory（也稱為主內存）的page frame，我們就可以應用page offset來獲取page frame內正確的word。 Cache存什麼? L1 Cache中分為指令快取與資料快取，實驗證實分離程式碼與資料的快取是比較好的。Intel 自 1993 年起採用分離程式碼與資料的快取，就再也沒有回頭過。程式碼與資料所需的記憶體區域彼此相當獨立，這也是獨立的快取運作得更好的原因。近年來，另一個優點逐漸浮現：對大多數常見的處理器而言，指令解碼（decoding）的步驟是很慢的；快取解碼過的指令能夠讓執行加速，在不正確地預測或者無法預測的分支（branch）使得管線（pipeline）為空的情況下尤其如此。 隨著CPU製造工藝的發展，二級快取也能輕易的集成在CPU核心中，容量也在逐年提升。現在再用集成在CPU內部與否來定義一、二級快取，已不確切。

Sep 4, 2022
同步處理筆記

Part 1: Mutex Locks Part 2: Counting Semaphores Part 3: Working with Mutexes And Semaphores Part 4: The Critical Section Problem Part 5: Condition Variables Part 6: Implementing a barrier Part 7: The Reader Writer Problem Part 8: Ring Buffer Example Part 9: Synchronization Across Processes

Jun 12, 2022
Linux 核心設計 Homework3 (lab3)

contributed by < r34796Kevin > 簡介 實作Jserv老師的Linux 核心設計 (Linux Kernel Internals)的作業3,並且盡量完成作業的額外要求 [x] 研讀上述 ==Linux 效能分析的提示== 描述，在自己的實體電腦運作 GNU/Linux，做好必要的設定和準備工作 $\to$ 從中也該理解為何不希望在虛擬機器中進行實驗; [x] 研讀上述費氏數列相關材料 (包含論文)，摘錄關鍵手法，並思考 clz / ctz 一類的指令對 Fibonacci 數運算的幫助。請列出關鍵程式碼並解說 [x] 複習 C 語言 數值系統 和 bitwise operation，思考 Fibonacci 數快速計算演算法的實作中如何減少乘法運算的成本;

Apr 6, 2022
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