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2018-02-22 20:11:09 +08:00
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notes/计算机操作系统.md
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@ -71,12 +71,12 @@
* [ҳ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>㷨](#ҳ<><D2B3><EFBFBD>û<EFBFBD><C3BB>㷨)
* [1. <20><><EFBFBD>ѣ<EFBFBD>Optimal<61><6C>](#1-<2D><><EFBFBD><EFBFBD>optimal)
* [2. <20>Ƚ<EFBFBD><C8BD>ȳ<EFBFBD><C8B3><EFBFBD>FIFO<46><4F>](#2-<2D>Ƚ<EFBFBD><C8BD>ȳ<EFBFBD>fifo)
* [3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>ã<EFBFBD>LRU<EFBFBD><EFBFBD>Least Recently Used<65><64>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4><CAB9>lru<EFBFBD><EFBFBD>least-recently-used)
* [3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>ã<EFBFBD>LRU, Least Recently Used<65><64>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4><CAB9>lru,-least-recently-used)
* [4. ʱ<>ӣ<EFBFBD>Clock<63><6B>](#4-ʱ<><CAB1>clock)
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>豸<EFBFBD><E8B1B8><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D>豸<EFBFBD><E8B1B8><EFBFBD><EFBFBD>)
* [<EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨](#<23><><EFBFBD>̵<EFBFBD><CCB5><EFBFBD><EFBFBD>㷨)
* [1. <20><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>FCFS<EFBFBD><EFBFBD>First Come First Serverd<72><64>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD>fcfs<EFBFBD><EFBFBD>first-come-first-serverd)
* [2. <20><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>SSTF<EFBFBD><EFBFBD>Shortest Seek Time First<73><74>](#2-<2D><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>sstf<EFBFBD><EFBFBD>shortest-seek-time-first)
* [1. <20><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>FCFS, First Come First Serverd<72><64>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD>fcfs,-first-come-first-serverd)
* [2. <20><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>SSTF, Shortest Seek Time First<73><74>](#2-<2D><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>sstf,-shortest-seek-time-first)
* [3. ɨ<><C9A8><EFBFBD>㷨<EFBFBD><E3B7A8>SCAN<41><4E>](#3-ɨ<><C9A8><EFBFBD>㷨scan)
* [4. ѭ<><D1AD>ɨ<EFBFBD><C9A8><EFBFBD>㷨<EFBFBD><E3B7A8>CSCAN<41><4E>](#4-ѭ<><D1AD>ɨ<EFBFBD><C9A8><EFBFBD>㷨cscan)
* [<EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>)
@ -684,7 +684,7 @@ R
<EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD>Ὣ<EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ҳ<EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD>ʹȱҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߡ<EFBFBD>
### 3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>ã<EFBFBD>LRU<EFBFBD><EFBFBD>Least Recently Used<65><64>
### 3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>ã<EFBFBD>LRU, Least Recently Used<65><64>
<EFBFBD><EFBFBD>Ȼ<EFBFBD>޷<EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʹ<EFBFBD>õ<EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥʹ<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>LRU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>õ<EFBFBD>ҳ<EFBFBD>滻<EFBFBD><E6BBBB><EFBFBD><EFBFBD>
@ -706,11 +706,11 @@ Clock ҳ
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʴ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶԴ<EFBFBD><EFBFBD>̵ķ<EFBFBD><EFBFBD>ʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD>ҪĿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD>ƽ<EFBFBD><EFBFBD>Ѱ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>١<EFBFBD>
### 1. <20><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>FCFS<EFBFBD><EFBFBD>First Come First Serverd<72><64>
### 1. <20><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>FCFS, First Come First Serverd<72><64>
<EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʴ<EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD>Ⱥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD>ǹ<EFBFBD>ƽ<EFBFBD>ͼ򵥣<EFBFBD>ȱ<EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><EFBFBD><EFBFBD>Ϊδ<EFBFBD><EFBFBD>Ѱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD>ʹƽ<EFBFBD><EFBFBD>Ѱ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽϳ<EFBFBD><EFBFBD><EFBFBD>
### 2. <20><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>SSTF<EFBFBD><EFBFBD>Shortest Seek Time First<73><74>
### 2. <20><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>SSTF, Shortest Seek Time First<73><74>
Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĴŵ<EFBFBD><EFBFBD>뵱ǰ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ڴŵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD>֤ƽ<EFBFBD><EFBFBD>Ѱ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD> FCFS <20>úܶࡣ