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Techniques of Virtualisation of Computing Platforms in Linux
Župka, Jiří ; Kumpošt, Marek (referee) ; Vojnar, Tomáš (advisor)
The thesis tests and compares various existing virtualization tools for virtualization of computing platforms and explains important conceptions of virtualization technology. It's main contribution is a performance, efficiency, scalability and robustness comparison of virtualization tools. This comparison should help the Redhat company to make a decision whether they should leave XEN as a main virtualization tool in their distributions and move on to another newer and more user friendly virtualization tool like KVM.
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J2ME/J2SE Network Communication
Přerovský, Petr ; Herout, Adam (referee) ; Láník, Aleš (advisor)
The first part of this bachelor study is engaged in description of platform Java Micro Edition with the goal to punctuate its main features. The second part presents the possibilities of implementation of networking communication in surroundings of mobile phones and networking posibilities of platform Java 2 Standart Edition with target the multiplex and non-blocking server. The third part is focused on project and implementation of exemplary application with tests of resulting solutions together.
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Analysis of Entropy Levels in the Entropy Pool of Random Number Generator
Krempa, Peter ; Hanáček, Petr (referee) ; Barabas, Maroš (advisor)
V informatice je pojem entropie obvykle znám jako nahodný proud dat. Tato práce krátce shrnuje metody generovaní nahodných dat a popisuje generátor náhodnych čísel, jež je obsažen v jádře operačního systému Linux. Dále se práce zabývá určením bitové rychlosti generování nahodných dat tímto generátorem ve virtualizovaném prosředí, které poskytují různé hypervizory. Práce popíše problémy nízkého výkonu generátory nahodných dat ve virtualním prostředí a navrhne postup pro jejich řešení. Poté je nastíňena implementace navržených postupů, které je podrobena testům a její vysledky jsou porovnány s původním systémem. Systém pro distribuci entropie může dále vylepšit množství entropie v sytémovém jádře o několik řádu, pokud je připojen k vykonému generátoru nahodných dat.
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Installation and configuration of Octave computation cluster
Mikulka, Zdeněk ; Hasmanda, Martin (referee) ; Sysel, Petr (advisor)
This diploma thesis contains detailed design of high-performance cluster, primarely focused for parallel computing in Octave application. Each of component of this cluster is described along with instructions for installation and configuration. Cluster is based on GNU/Linux operating system and Message Parsing Interface. Design alllows implementation of this cluster in computers of schoolroom with active lessons.
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Installation and configuration of Octave computation cluster
Mikulka, Zdeněk ; Hasmanda, Martin (referee) ; Sysel, Petr (advisor)
This diploma thesis contains detailed design of high-performance cluster, primarely focused for parallel computing in Octave application. Each of component of this cluster is described along with instructions for installation and configuration. Cluster is based on GNU/Linux operating system and Message Parsing Interface. Design alllows implementation of this cluster in computers of schoolroom with active lessons.
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Remote connection to virtualized operating system
Veselý, Marek ; Červenka, Vladimír (referee) ; Komosný, Dan (advisor)
The thesis is focused on the new IT trend – virtualization. Below are described the types of virtualization, as well as different implementations of it. In the following chapters there will be described the TCP and ICMP protocols, as well as the SSH services. The last part of this work is dedicated to measurements where there will be highlighted the advantages and disadvantages of virtualization.
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Automated system for installing and configuring GNU/Linux virtual hosts
Horák, Daniel ; Polívka, Michal (referee) ; Pelka, Tomáš (advisor)
This work deals with possibilities of administration of virtual machines (mainly from the developer's point of view) and available methods for automatic installation of GNU/Linux distributions. First part contains the information about virtualisation technologies and possibilities to configure them with a libvirt library. The definition and specification of each part of virtualisation environment (virtual machines, disks, networks) using XML is described. Further more the possibilities of automatic installation of Linux distributions based on RedHat and Debian considering the virtualisation environment are discussed. The possibility of copying an existing disk with installed system is also mentioned. In a practical part a server application for control and management of virtual machines including automatic installation of operating system is proposed and realised.
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Universal mobile communication platform using the bluetooth technology
Sopko, Richard ; Šilhavý, Pavel (referee) ; Daněček, Vít (advisor)
This master’s thesis is focused on field of communication technologies in mobile devices in personal WPAN type wireless networks. Work consists of three basic parts. First part provides overview of personal WPAN wireless networks and is specialized on Bluetooth technologies and its opportunities of communication between mobile devices. Second part deals with an opportunity of using programming language Java 2 Micro Edition in work with Bluetooth technology. Key point of this work is third part which includes scheme of conception of a communication platform and creating of application designed for mobile phones. Created application enables communication by means of changing files and written conversation of two or more people in real time by Bluetooth connection.
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Network storage for virtualization
Korbelář, Jakub ; Bruckner, Tomáš (advisor) ; Pavlíček, Luboš (referee)
The diploma thesis is focused on expansion of current KVM virtualization infrastructure with network storage in a web hosting company environment. The first part describes the basics of the network storage field, and the virtualization field as well. This is amended by a description of the current solution in the company, which is going to be expanded. The searching for suitable innovative solution is following, several variants are found, each of them is commented and their advantages and disadvantages are summarized. The realization of the selected solution is implemented, including the testing on the practical part.
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Správa politik MoM pro efektivní auto ballooning
Pavlásek, Martin
This diploma thesis offers an overview of hypervisors and methods how they manage memory. Next part describes Memory overcommit Manager, design policies for more efficiet utilization of memory with memory ballooning. There are also description and implementation of newly created MoM Simulator. Purpose of this tool is to easily verificate the policies without running on a real hypervisor. In the latest part there are a description and a design of another new tool for managing constants. It allows applying policies on each virtual machine intedependently.
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