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Performance Analysis of Programs Based on PIN Framework
Močáry, Peter ; Fiedor, Jan (oponent) ; Pavela, Jiří (vedoucí práce)
The goal of this thesis is to extend the Performance Version System - Perun by implementing a new Tracer engine leveraging PIN instrumentation framework. This extension implements basic Tracer functionality and, in addition to that, a recording of function arguments' values as well as basic block run-times. The additional data, along with the visualizations introduced in this thesis, provide the necessary context that simplifies the detection of performance degradation. Besides the PIN framework, the new Tracer engine implements an analysis of debug information in DWARF format (using the python pyelftools library) to gather details about function arguments before the data collection process. The resulting engine was tested on multiple implementations of sorting algorithms and successfully detected the most time consuming functions along with the information about the effect of its parameter value on the functions complexity. Testing the PIN engine on a larger-scale project revealed that, in comparison to other Tracer engine implementations, the engine performs better or comparably, and produces the correct output.
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OSLC Adapter for Software Analysis
Vašíček, Ondřej ; Hrubý, Martin (oponent) ; Smrčka, Aleš (vedoucí práce)
The goal of this work is to provide an easy way of adding an OSLC compliant interface to an analysis tool. Such an interface allows tools to be easily integrated with other tools or systems, allows them to be used remotely due to its web based nature, and allows them to be easily connected with a database for persistency and queries. This is achieved by designing and creating an OSLC adapter using Eclipse Lyo that is universal enough to accommodate the functionality of most analysis tools. This is done by using the OSLC Automation domain interface and by leveraging the current command-line interfaces of analysis tools. This work provides an introduction to OSLC, Eclipse Lyo, and other related topics; defines requirements and differences of analysis tools; covers the design process of the adapter and the factors that impacted design decisions; and finally, presents the implemented adapter and evaluates it by using an automated test suite and then experiments with a set of different analysis tools. The most important evaluation indicator is that the current version of the adapter is already being used in practice to add an OSLC interface to four analysis tools: ANaConDA, Perun, Spectra (all three developed by VeriFIT); and HiLiTE (Honeywell).
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Analýza výkonu programů v jazyce C#
Hájek, Vojtěch ; Rogalewicz, Adam (oponent) ; Pavela, Jiří (vedoucí práce)
Cílem této práce je rozšířit výkonnostní verzovací systém – Perun implementací modulu pro profilování programů napsaných v jazyce C#. Toto rozšíření implementuje profiler s technikou sledování událostí, které jsou získávány pomocí .NET runtime profilovacího aplikačního rozhraní. Profiler dokáže sbírat metriky o sledování funkcí a spotřebě paměti. Naměřené profily potom dokáže dále interpretovat do grafů jako je korelační diagram nebo mapa stromu volání.
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Modern Web Interface of NERD System
Oltmanová, Kristína ; Hranický, Radek (oponent) ; Žádník, Martin (vedoucí práce)
This thesis deals with the issue of designing a modern web interface for an existing system of a database of malicious network entities. The thesis describes the design of a new user interface and also addresses the changes in the existing NERD system, which had to be adapted to the needs of the new web interface. The changes to the existing system were based on expanding the previous functionality in the Python language and the Flask framework. Vue.js (a JavaScript framework) was used to implement the new web interface. This thesis also presents an improved user management with support for external identity providers. The final result of the thesis is a usable modern web interface for the NERD system, which preserves the functionality of the original interface and further extends it.
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Analysis of Software Resource Consumption
Míchal, Ondřej ; Fiedor, Jan (oponent) ; Pavela, Jiří (vedoucí práce)
Software resource consumption is a widely and actively researched area. Of the many resources utilized by software which can be profiled, energy consumption has long been the one resource without many generic, and yet comprehensive profilers. In the age of mobile devices and efficient processing units the need for such profiles is continuously increasing. In this work, we research methods for accurate measurement of energy consumption of software based on them create an open-source profiler and implement a comprehensive visualizer of the profiled data. Using the developed profiler we conduct a number of experiments to showcase its capabilities and demonstrate the usefulness of measuring software energy consumption.
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Performance Analysis of Programs Based on PIN Framework
Močáry, Peter ; Fiedor, Jan (oponent) ; Pavela, Jiří (vedoucí práce)
The goal of this thesis is to extend the Performance Version System - Perun by implementing a new Tracer engine leveraging PIN instrumentation framework. This extension implements basic Tracer functionality and, in addition to that, a recording of function arguments' values as well as basic block run-times. The additional data, along with the visualizations introduced in this thesis, provide the necessary context that simplifies the detection of performance degradation. Besides the PIN framework, the new Tracer engine implements an analysis of debug information in DWARF format (using the python pyelftools library) to gather details about function arguments before the data collection process. The resulting engine was tested on multiple implementations of sorting algorithms and successfully detected the most time consuming functions along with the information about the effect of its parameter value on the functions complexity. Testing the PIN engine on a larger-scale project revealed that, in comparison to other Tracer engine implementations, the engine performs better or comparably, and produces the correct output.
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OSLC Adapter for Software Analysis
Vašíček, Ondřej ; Hrubý, Martin (oponent) ; Smrčka, Aleš (vedoucí práce)
The goal of this work is to provide an easy way of adding an OSLC compliant interface to an analysis tool. Such an interface allows tools to be easily integrated with other tools or systems, allows them to be used remotely due to its web based nature, and allows them to be easily connected with a database for persistency and queries. This is achieved by designing and creating an OSLC adapter using Eclipse Lyo that is universal enough to accommodate the functionality of most analysis tools. This is done by using the OSLC Automation domain interface and by leveraging the current command-line interfaces of analysis tools. This work provides an introduction to OSLC, Eclipse Lyo, and other related topics; defines requirements and differences of analysis tools; covers the design process of the adapter and the factors that impacted design decisions; and finally, presents the implemented adapter and evaluates it by using an automated test suite and then experiments with a set of different analysis tools. The most important evaluation indicator is that the current version of the adapter is already being used in practice to add an OSLC interface to four analysis tools: ANaConDA, Perun, Spectra (all three developed by VeriFIT); and HiLiTE (Honeywell).
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Fyzikálně chemické změny hroznů révy vinné během zrání
Majorová, Anežka
Diplomová práce byla zaměřena na fyzikálně chemické změny hroznů révy vinné během zrání. Byly zkoumány tři odrůdy révy vinné, konkrétně Hibernal, Malverina a Perun. Hrozny byly sklizeny ve třech různých termínech. V průběhu zrání tří odrůd byly hodnoceny technologické vlastnosti podle šesti parametrů: hmotnost celého hroznu, hmotnost deseti bobulí, pevnost slupky, obsah refraktometrické sušiny, obsah titračních kyselin a zralostní index. Byl sledován vývoj všech kritérií v čase a rozdíl mezi jednotlivými odrůdami. Dále byla zjišťována korelace mezi testovanými veličinami. Kromě zmíněných znaků zralosti byly hrozny před sběrem hodnoceny také vizuálně. Z dosažených výsledů byl prokázán lineární pokles obsahu titračních kyselin u odrůdy Hibernal o 26mg/100g za den. Docházelo také k poklesu pevnosti bobule u odrůdy Hibernal o 0,018 MPa za den a konkrétně u odrůdy Malverina o 0,024 MPa za den. U všech odrůd byl zjištěn nárůst refraktometrické sušiny. Během sledovaného období a nebyla zjištěna žádná korelace u všech odrůd mezi hmotností bobule a měřenými veličinami. Zralostní index svědčí o rozdílném počátku zrání jednotlivých odrůd.
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