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CyC2018
2019-11-02 17:33:10 +08:00
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@ -16,7 +16,7 @@
- 制动手臂Actuator arm用于在磁道之间移动磁头
- 主轴Spindle使整个盘面转动
<div align="center"> <img src="pics/014fbc4d-d873-4a12-b160-867ddaed9807.jpg"/> </div><br>
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/014fbc4d-d873-4a12-b160-867ddaed9807.jpg"/> </div><br>
# 磁盘调度算法
@ -44,7 +44,7 @@
虽然平均寻道时间比较低但是不够公平如果新到达的磁道请求总是比一个在等待的磁道请求近那么在等待的磁道请求会一直等待下去也就是出现饥饿现象具体来说两端的磁道请求更容易出现饥饿现象
<div align="center"> <img src="pics/4e2485e4-34bd-4967-9f02-0c093b797aaa.png"/> </div><br>
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/4e2485e4-34bd-4967-9f02-0c093b797aaa.png"/> </div><br>
## 3. 电梯算法
@ -56,11 +56,11 @@
因为考虑了移动方向因此所有的磁盘请求都会被满足解决了 SSTF 的饥饿问题
<div align="center"> <img src="pics/271ce08f-c124-475f-b490-be44fedc6d2e.png"/> </div><br>
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/271ce08f-c124-475f-b490-be44fedc6d2e.png"/> </div><br>
<div align="center"><img width="320px" src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/githubio/公众号二维码-1.png"></img></div>
<div align="center"><img width="320px" src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/githubio/公众号二维码-2.png"></img></div>