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4141🙋 ** 我** :介绍系统调用之前,我们先来了解一下用户态和系统态。
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43- <img src =" https://my-blog-to-use.oss-cn-beijing.aliyuncs.com/2019-11/006r3PQBjw1fbimb5c3srj30b40b40t9.jpg " height =" 200 " width =" 2 " />
43+ <img src =" https://my-blog-to-use.oss-cn-beijing.aliyuncs.com/2019-11/006r3PQBjw1fbimb5c3srj30b40b40t9-20200404224750646 .jpg " height =" 200 " width =" 2 " />
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4545根据进程访问资源的特点,我们可以把进程在系统上的运行分为两个级别:
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156156🙋 ** 我** :谢谢面试官!刚刚把这个给忘记了~
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158- <img src =" http ://ww4.sinaimg.cn/large /6af89bc8gw1f8txoxc2asj20k00k0mxv.jpg" alt =" 这就很尴尬了_尴尬表情 " height =" 200 " width =" 200 " />
158+ <img src =" https ://my-blog-to-use.oss-cn-beijing.aliyuncs.com/2019-11 /6af89bc8gw1f8txoxc2asj20k00k0mxv.jpg" alt =" 这就很尴尬了_尴尬表情 " height =" 200 " width =" 200 " />
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160160#### 3.3 快表和多级页表
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196196🙋 ** 我** :
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198- <img src =" http ://wx3.sinaimg.cn/large /de80a5ably1gcuslckpygg208c08cwfu.gif" height =" 200 " width =" 200 " ></img >
198+ <img src =" https ://my-blog-to-use.oss-cn-beijing.aliyuncs.com/2019-11 /de80a5ably1gcuslckpygg208c08cwfu.gif" height =" 200 " width =" 200 " ></img >
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2002001 . ** 共同点** :
201201 - 分页机制和分段机制都是为了提高内存利用率,较少内存碎片。
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217217🙋 ** 我** :这部分我真不清楚!
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219- <img src =" http ://wx2.sinaimg.cn/bmiddle /a9cf8ef6ly1fhqpdipcyfj20ce0b4wex.jpg " height =" 300px " />
219+ <img src =" https ://my-blog-to-use.oss-cn-beijing.aliyuncs.com/2019-11 /a9cf8ef6ly1fhqpdipcyfj20ce0b4wex.jpg .jpeg " height =" 300px " />
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221221于是面试完之后我默默去查阅了相关文档!留下了没有技术的泪水。。。
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