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Library for Profiling and Visualization of Memory Consumption of C/C++ Programs
Podola, Radim ; Peringer, Petr (referee) ; Fiedor, Tomáš (advisor)
Performance is an important and, for some classes of programs, even critical aspect of user experience. The current approaches to performance profiling are, however, far from being satisfactory. The aim of this bachelor's thesis is to extend the current state-of-the-art of profiling and visualization solutions, with novel techniques which can be used for a more efficient search of performance bugs in C/C++ programs and their subsequent interpretation to the end user. Thesis briefly introduces existing tools dealing with similar problems and then proposes a novel solution to collection of profiling data and their illustrative interpretation. The resulting implementation is, moreover, integrated in the Perun --- Performance Control System --- platform for profile versioning. The functionality of the implementation is demonstrated on a series of non-trivial programs.
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Processing of the RC plane model telemetry
Žák, Tomáš ; Fedra, Zbyněk (referee) ; Prokopec, Jan (advisor)
Bachelor’s project focuses on problematic about scanning state of RC plane model, during the fly. In detail there is described internal and external structure, including communication. Main objective of work is design functional board for scanning state of RC plane model, during the fly. There is used akcelerometer for scanning actual state of plane. Accelerometer sends measured data in digital form to microcontroller for evaluating. List of used components is in the enclosure.
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Microcontrollers programming possibilities
Šubrt, Stanislav ; Kovář, Jiří (referee) ; Houška, Pavel (advisor)
This work is focused on inner structure and programming possibilities of microcontrollers. The work goal is to describe inner structure of microcontrollers from the programmer’s point of view, find out advantages and disadvantages of their programming in Assembly language, C language and higher-level languages. Code portability between different microcontrollers’ families and architectures is discussed further.
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Bluetooth cache
Franek, Miroslav ; Háze, Jiří (referee) ; Pavlík, Michal (advisor)
This thesis deals with bluetooth cache design for geocaching. It briefly describes what geocaching is and describes the bluetooth cache. It also describes the selection of hardware for realization, the design of circuit diagram and printed circuit board. Using a flowchart, it explains the firmware function and provides an application management manual for using an Android application for managing the cache. Presents the results of measuring cache consumption in individual modes. Finally, it proposes a solution to extend the cache life for a single charge.
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Memory System Management for Colibri XScale PXA270 Platform
Mačišák, Lukáš ; Straka, Martin (referee) ; Šimek, Václav (advisor)
This Bachelor's Thesis describes platform Colibri XScale PXA270, analyses potential usage of DMA transfers on this platform and describes principles of work with flash and SDRAM memories. Thesis includes design and implementation of firmware for servicing memory systems on this platform. One part of this thesis is also the description and implementation of tests for semiconductor memories with random access. The demonstrative application is implemented to show usage and functionality of this firmware.
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Android Application for Children with Easy Content Expansion
Turcovský, Jakub ; Herout, Adam (referee) ; Szőke, Igor (advisor)
The bachelor thesis deals with draft and implementation of the project, thanks to which parents can themselves create content of applications for their children. These applications are mostly games which support mental development of preschool children and teach them how to work with touch devices. This project, called Tamaty (note: the name is made from Czech words for Dad, Mom and You), consists of a web framework that allows parents to upload media files at server, create a package, then download the package to Android applications which will make a children game from it. For the purposes of this thesis I've implemented variations on the well-known games pexeso and puzzle.
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RAM-Tester Design in VHDL
Charvát, Jiří ; Straka, Martin (referee) ; Strnadel, Josef (advisor)
This paper describes various approaches to hardware testing semiconductor memory. We describe the priciple of basic memory types, the way which each of them stores information and their comunication protocol. Following part deals with common failures which may occur in the memory. The section also describes the implementation of memory model and tester designed in VHDL language. It is possible to inject some errors into memory, which are later detected by the tester. The final section shows the response of tester to various error types according to used error detection method. The paper is especially focused on failure detection by variants of march test.
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Universal Microcontroller Unit
Kulenda, Vít ; Hynčica, Ondřej (referee) ; Kučera, Pavel (advisor)
Master’s thesis contains description parameters of microcontroller ATMEGA644P, also contains differences between older and newer version of microcontrollers ATMEGA644 and ATMEGA644PA. Inside structure of microcontroller, memories and peripherals are described here. The construction of the universal microcontroller unit is main target of this thesis. The unit contains supply, A/D converter, current loop, communication interfaces, temperature sensor, accelerometer and other. The unit collects and saves data, communicates by interfaces and manages other functions. Using devices and circuits are described in this thesis. Development of software for microcontroller(firmware) are positioned to last part of this thesis. This software control functions of all parts positioned on the unit.
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A Tool for Analyzing Performance of Memory Allocators in Linux
Müller, Petr ; Peringer, Petr (referee) ; Vojnar, Tomáš (advisor)
This diploma thesis presents a tool for dynamic memory allocator analysis, focused on their performance. The work identifies the important memory allocator performance metrics, as well as the environment and program factors influencing these metrics. Using this knowledge, a tool was designed and implemented. This tool allows to gather and analyze these metrics. The tool provides the ability to create memory allocator usage scenarios for the purpose of the allocator behavior analysis under different conditions. The tool was tested on several available memory allocators with free license.
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