本文選題：云計算　切入點：虛擬化　出處：《武漢理工大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：云計算描述了一種基于互聯(lián)網(wǎng)的新的IT服務(wù)增加、使用和交付模式,通常書籍通過互聯(lián)網(wǎng)來提供動態(tài)易擴展而且經(jīng)常是虛擬化的資源。云計算的服務(wù)模式分為三種：軟件即服務(wù),平臺即服務(wù),基礎(chǔ)架構(gòu)即服務(wù)。而云計算的部署模型也分為三種：公共云,私有云和混合云。從2006年亞馬遜推出彈性計算云服務(wù)以來,云服務(wù)蓬勃發(fā)展,各大IT企業(yè)、研究機構(gòu)都表現(xiàn)出強勁的意愿。 本論文將虛擬機動態(tài)遷移關(guān)鍵技術(shù)的優(yōu)化作為研究的主要目標(biāo)。本論文通過對虛擬化中虛擬機動態(tài)遷移技術(shù)和云計算的全面分析與研究,以現(xiàn)有的Xen虛擬機動態(tài)遷移實現(xiàn)機制的分析為基礎(chǔ),重點剖析了虛擬機Xen遷移實現(xiàn)的典型范例,并指出它的優(yōu)良特征與不足。針對其不足提出Magician(魔術(shù)師)動態(tài)遷移優(yōu)化框架。該框架是在典型xen虛擬機運行遷移模塊中添加了兩個子模塊,一個是分層拷貝模塊,另一個是內(nèi)存壓縮模塊。描述了這兩個模塊的設(shè)計思路,提供了實現(xiàn)該框架的流程圖。通過分析,Magician優(yōu)化了動態(tài)遷移實現(xiàn)的時間和空間復(fù)雜性。 為了驗證Magician優(yōu)化框架的合理性,搭建了實驗平臺,測試了所設(shè)計的優(yōu)化框架。第一階段,在零負(fù)載情況下,將分層拷貝算法編譯到Xen的源代碼中,分別在高臟頁率和低臟頁率環(huán)境中,測試實施動態(tài)遷移的時間性能。第二階段,在不同負(fù)載情況下,在Xen的優(yōu)化源代碼中增加了內(nèi)存壓縮算法,測試實施動態(tài)遷移時的數(shù)據(jù)量。實驗結(jié)果表明,本論文提出的分層拷貝算法和內(nèi)存壓縮算法,在虛擬機動態(tài)遷移的時間性能上有了良好的改進(jìn),能有效縮短遷移宕機時間,實現(xiàn)虛擬機遷移性能優(yōu)化的目的。 本文得到了國家自然科學(xué)基金項目(批準(zhǔn)號：60970064)的資助。
[Abstract]:Cloud computing describes a new Internet based IT service increased, the use and delivery mode, usually books through the Internet to provide dynamically scalable and often virtualized resources. Cloud computing service model is divided into three types: software as a service, SaaS, IAAs and cloud deployment model. The calculation is divided into three types: public cloud, private cloud and hybrid cloud. Since the launch of the Amazon Elastic Compute Cloud Service from 2006, the cloud service is booming, the major IT companies, research institutions have shown a strong desire.
This paper will optimize the dynamic migration of virtual machines in key technology as the main objective of the study. This paper through a comprehensive analysis and Research on the calculation of the dynamic migration of virtual machines and cloud virtualization technology in the migration mechanism based on dynamic analysis of the existing Xen virtual machine, analyzes the typical example of virtual machine migration realization Xen, and points out its merits and shortcomings. According to the shortcomings of Magician (Magic) dynamic migration optimization framework. The framework is in a typical Xen virtual machine running migration module was added in the two sub modules, a layered copy module and the other is a memory compression module. Describes the design methods of the two modules the flow chart provides an implementation of the framework. Through the analysis of Magician, optimize the time and space complexity of dynamic migration realization.
In order to verify the rationality of the Magician optimization framework, an experimental platform is built, the design optimization framework was tested. In the first stage, the zero load condition, the layered copy algorithm is compiled to Xen source code, respectively, in the high dirty pages dirty page rate and low rate environment, time performance test of dynamic migration. In the second stage, under different load conditions, in the optimization of Xen source code increases the memory test data compression algorithm, implementation of dynamic migration quantity. Experimental results show that the proposed layered copy algorithm and compression algorithm in the virtual memory, have a good time performance improved machine dynamic migration, can shorten the migration downtime, transfer of the performance optimization of the virtual machine.
This paper has been supported by the National Natural Science Fund Project (approval number: 60970064).

【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TP302

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本文編號：1565531