| 一种改进的Linux内存分配机制 |
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| 引用本文： | 聂岚,卢正鼎,董俊,魏东林.一种改进的Linux内存分配机制[J].华中科技大学学报(自然科学版),2002,30(7):45-47. |
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| 作者姓名： | 聂岚 卢正鼎 董俊 魏东林 |
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| 作者单位： | 华中科技大学计算机科学与技术学院 |
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| 基金项目： | 国防科技预研基金资助项目 |
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| 摘 要： | 在对Linux2.4.0中一种新型的内存分配机制－zone分配器进行分析的基础上，针对其中存在的碎片问题提出了一种改进的分配算法和碎片解决方案，即在区中定义一系列子区，每一个子区只用来处理一个类对象的分配，改进后的zone分配器简单、快速、明显减少了内存碎片，提高了分配性能。
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| 关 键 词： | 内存分配机制 zone分配器 区 子区 碎片 对象 Linux操作系统 分配性能 |
| 文章编号： | 1671-4512(2002)07-0045-03 |
| 修稿时间： | 2001年11月9日 |
An improved mechanism for memory allocation in Linux |
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| Nie Lan Lu Zhending Dong Jun Wei Donglin Postgraduate, College of Computer Sci. & Tech.,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..An improved mechanism for memory allocation in Linux[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2002,30(7):45-47. |
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| Authors: | Nie Lan Lu Zhending Dong Jun Wei Donglin Postgraduate College of Computer Sci & Tech Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Nie Lan Lu Zhending Dong Jun Wei Donglin Postgraduate, College of Computer Sci. & Tech.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | The performance analysis of the zone based on buddy system, a new mechanism for page level memory allocation in Linux2.4.0 was made. The memory fragmentation was described, and an improved mechanism to lessen fragmentations in which every zone was divided into a number of sub zones and each sub zone was used for one type of allocation was presented. The test result demonstrated that the mechanism lessened the fragmentation and enhanced performance. |
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| Keywords: | zone allocator zone sub zone fragmentation object |
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