Sjf scheduling - PowerPoint PPT Presentation

排程 – 行程的執行順序安排問題

排程 – 行程的執行順序安排問題. 排程. 背景知識有了行程切換的概念，就可以介紹排程了。排程的主要問題很多個程式在記憶體當中，下一個應該誰來執行呢？如何排程是影響作業系統效能最重要的因素。排程的目的就是將 CPU 資源作更有效的利用。. 排程的背景知識. 背景知識一：內文切換的方法與意義背景知識二： CPU 暴衝與 IO 暴衝背景知識三：排程佇列的概念. 背景知識一 : 內文切換. 通常用組合語言撰寫用來將暫存器、檔案資源等儲存的函數該函數稱為內文切換函數. 背景知識二： CPU 與 IO 暴衝.

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CPU SCHDULNG

CPU SCHDULNG. BY: MAZHAR JAVED AWAN ( mazharjaved2001@yahoo.com). Scheduling Concepts. A number of programs can be in memory at the same time. Allows overlap of CPU and I/O. Multiprogramming. (batch) are programs. that. run. Jobs. without user interaction.

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371 views • 23 slides

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