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Performance Testing of Linux Kernel Scheduler
Vozár, Jiří ; Rogalewicz, Adam (referee) ; Malík, Viktor (advisor)
Výkon plánovače procesů v jádře operačního systému značně ovlivňuje rychlost a odezvu všech aplikací, které na něm běží. Jakýkoli propad výkonu pak může mít kritické důsledky na běhu aplikací. S příchodem každé nové technologie (např. symetrický multiprocesing) se kód plánovače vyvíjí a rozšiřuje. Proto jsou potřeba regresní testy nejen na jeho fukčnost, ale i výkon. Tato práce mapuje metody testování plánovače operačního systému Linux ve firmě Red Hat. Popisuje způsoby měření výkonu plánovače, sbírání informací o jeho chování, ukládání sesbíraných dat a jejich vizualizaci. Hlavním cílem práce je pak návrh a implementace nového způsobu vizualizace dlouhodobých měření a využití strojového učení pro automatické rozpoznání degradace výkonu mezi dvěma výsledky.
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Methods of research in libraries - an analysis of methods used for research in the Czech republic and abroad too
Prchalová, Tereza ; Drobíková, Barbora (advisor) ; Zbiejczuk Suchá, Ladislava (referee)
This thesis concerns methods of research, user's satisfaction and methods and tools for measuring quality and performance in the libraries of the Czech Republic and the Nordic countries, especially the library institutions of Norway, Sweden and Finland. The theoretical part focuses on the basic concepts related to research in general. Furthermore, the thesis clarifies specific tools and methods for measuring the quality and performance in an environment of the Czech and Nordic libraries and it also comments on the research methods of the user's satisfaction in the libraries of the Czech Republic. The practical part is composed of an exploration in the Czech libraries by using different kinds of research methods.
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Deployment of Performance Evaluation Tools in Industrial Use Case
Täuber, Jiří ; Tůma, Petr (advisor) ; Šimko, Viliam (referee)
Nowadays software performance is evaluated not only by specialized review companies but it is more and more starting to be a common practice for the software developers themselves. Companies are often forced to develop and maintain their own tools for measuring performance of the developed applications. On the Faculty of Mathematics and Physics there has been created a toolkit for automation of software performance evaluation called BEEN. This toolkit should significantly ease the management of individual performance measurements but it is not possible to test it thoroughly in the environment where it was created. The goal of this thesis is to deploy BEEN in a real environment of commercially oriented company and evaluate the usability of this toolkit for the developers. We will focus on evaluating both objective and subjective positives and drawbacks of this toolkit as observed by unbiased users.
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Test bench for heating power measurement of fuel filters
Jahoda, Patrik ; Svída, David (referee) ; Drápal, Lubomír (advisor)
This work is focused on the design and realization of a station for measuring the performance of modern fuel filter heaters. The openning part of the thesis is focused on the theoretical introduction to the issue of diesel purity and the function of fuel filters. The second part includes the process of measuring station creation, including the creation of a control application in LabView. The final part is devoted to measuring of several types of filters and method verification.
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Demonstration and Benchmarking of Next-Gen Graphics APIs
Mainuš, Matěj ; Milet, Tomáš (referee) ; Herout, Adam (advisor)
The goal of master’s thesis was to demonstrate and benchmark peformance of Mantle and Vulkan APIs with different optimization methods. This thesis proposes a rendering toolkit with optimization methods based on parallel command buffer generating, persistent staging buffers mapping, minimal pipeline configuration and descriptor sets changing, device memory pre-allocating with managing and sharing between multiple resources. The result is reference implementation that could render dynamic scene with thousands of objects in real time.
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Business developer - current status and perspective
NĚMCOVÁ KOVÁČOVÁ, Zdeňka
The thesis deals with the evaluation of the impact of the performance of three groups of business representatives in Coca-Cola HBC Czech Republic, Ltd. on corporate revenues, sales volumes. Compares the cost of three groups of dealers. Based on the outputs multi criteria analysis of the impact of the performance of groups of business representatives on criteria of internal solution is proposed the use of sales representatives in the future in order to increase the company's bottom.
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Controlling ang checking system
Bláha, Jan ; Roubal, Zdeněk (referee) ; Szabó, Zoltán (advisor)
This bachelor thesis focuses on the design, fabrication and testing module 4 independent switching appliances. Switching can be controlled automatically according to the ambient temperature and time, or manually. The equipment includes the measurement of power. In the conclusion, the evaluation and lessons learned or problems in the implementation of module.
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SmartFlat peripherials
Chytil, Jiří ; Jirgl, Miroslav (referee) ; Bradáč, Zdeněk (advisor)
The theme of this thesis is the design of peripheral devices of a smart home SmartFlat and the design of communication interface for this system. Designed units are the humidity and temperature measuring unit, the unit of security and the smart socket unit for remote control, power measurement and power control. All units are designed for wired communicaton and also for wireless communication with control unit.
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Memory Management in Linux
Tuček, Jaroslav ; Kočí, Radek (referee) ; Vojnar, Tomáš (advisor)
This work describes the memory manager subsystem of the linux kernel. The first part gives a brief account of operating systems architecture and memory management theory - of virtual memory management, page tables, page replacement algorithms and kernel allocators in particular. The second part discusses the actual implementation of these principles in a modern kernel - in linux. Finally, a series of tests stressing the memory subsystem is conducted to determine the memory manager's real behaviour. Limitations of the current linux kernel memory management and some of their proposed solutions are also discussed.
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