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Automatic Searching of Instruction Extensions for Application Processors
Češka, Martin ; Křoustek, Jakub (referee) ; Masařík, Karel (advisor)
This thesis deals with the process of automatic searching of instruction-set extensions for application-specific instruction-set processors. This process uses slightly edited ISEGEN algorithm. At first, all important terms including this algorithm are described. Then there is a detailed description of implementation of whole process in C++ programming language. At last, newly created program is considered as useful or useless based on speed-up of processor at performing of input program using found extensions.
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Performance Evaluation of Graphics Accelerator
Dvořák, Milan ; Šolony, Marek (referee) ; Jošth, Radovan (advisor)
This bachelor thesis deals with a performance evaluation of graphics accelerators. Properties of the current graphics accelerators and existing solutions for evaluating their performance are summarized. An own methodology for performance evaluation is proposed and the implementation of an OpenGL aplication with GLUT and GLEW libraries is described. In the last part, several graphic cards are tested, the influence of various factors is examined, and the measured results are discussed.
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Benchmarking and Profiling of CloverETL Data Processing System
Botka, Roland ; Bartík, Vladimír (referee) ; Rychlý, Marek (advisor)
This thesis deals with the benchmarking and profiling of CloverETL Data Processing system. The aim of this thesis is to design a way of measuring performance and profiling in different runtime environments. The problem was solved by designing and implementing an application, which is based on measured data and its analysis, detects maximum system perpetuity and monitor performance changes in system performance. The advantage is the ability to compare environments on which the CloverETL System is running and application usage in automated testing in company. Created ETL Graphs have been tested during development and they are part of the result of this thesis.
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IP Flow Filtration and Profiling
Sedlák, Michal ; Tisovčík, Peter (referee) ; Kučera, Jan (advisor)
This thesis addresses the problem of filtering and profiling IP flows, primarily data of IPFIXsystems. Within the work, a general filtering component is designed and implemented, whichaims to be sufficiently efficient and flexible for use in other projects related to IP flows. Thiscomponent is then adapted to work with data in the IPFIX protocol format and integratedinto the existing modular collector IPFIXcol2 in the form of plugins adding the support forfiltering of passing IPFIX data and their sorting into profiles.
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Profiling of Non-Core Part of Security System
Špaček, Petr ; Michal, Bohumil (referee) ; Kašpárek, Tomáš (advisor)
The thesis is focused on identifying and eliminating performance problems in the security system "AVG Server Edition 8.5 for Linux/FreeBSD", which is used for filtering SMTP traffic. It includes explanation of the principle of SMTP proxy filter and of the interconnection between AVG and the Postfix mail system. It describes methodology of testing, sample designing, measurement and data evaluation. Several performance problems were found and steps to eliminate them were carried out. Suggested optimization was tested and found effective.
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HW Acceleration of Network Unix Tools
Bartoš, Peter ; Martínek, Tomáš (referee) ; Kořenek, Jan (advisor)
In the world, there always appear faster technologies for network communication. Some network tools are not capable of working in high-speed, they are overloading system, therefore they are not able to fulfill their functions. They can not fully monitor the whole traffic and ensure secured services. Thesis analyses network tools, their operations and researches critical spaces for future hardware acceleration. In this context, it introduces effective hardware programming platforms. Using measurements, it evaluates the limits of the tools and mentions the possibilities of acceleration, which are suggested for another thesis.
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Graphics Application in Python Using OpenGL
Szentandrási, István ; Kršek, Přemysl (referee) ; Navrátil, Jan (advisor)
The aim of this work was to study the possibilities of the Python programming language in computer graphics and to determine its competence in this field. To achieve this the cross platform Python binding to OpenGL and related APIs, PyOpenGL was used to create a demo, and compare it in many ways to an implementation of the demo using the standard OpenGL C API. As the result Python was found in average twice as slow as the alternative C~demo and using much more CPU~load. Because of this fact PyOpenGL is not advisable in professional applications. On the other hand Python has an extensive standard library, very useful specialized libraries, simpler syntax, which makes it ideal to use in education.
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Network Communication Analysis for Mobile Application Profiling
Meluš, Matej ; Matoušek, Petr (referee) ; Burgetová, Ivana (advisor)
Goal of this thesis was to create profiles of mobile applications based on their network communication, which is stored in created data sets. For this purpose, a tool that can extract profiles from data sets was created. Profiles contain JA3 fingerprints, IP addresses and hostnames, that are associated with specific application based on number of occurrences in data sets. Unmodified profiles describe importance of individual identifiers used by application in network communication. Modified profiles can be used to identify application in network traffic.
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Performance Analysis of C# Programs
Hájek, Vojtěch ; Rogalewicz, Adam (referee) ; Pavela, Jiří (advisor)
The goal of this thesis is to extend the Performance Version System – Perun by implementing a module for profiling programs written in C# language. This extension implements a tracing profiler with the use of .NET runtime profiling aplication interface. Profiler can collect metrics about trace functions and memory consumption. Measured profiles can then be interpreted into graphs like a scatter plot or a treemap.
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Optimizing JShelter Performance
Zmitko, Martin ; Polčák, Libor (referee) ; Hranický, Radek (advisor)
This thesis aims to lessen the impact of JShelter on the browsing experience. The goal was accomplished by measuring the performance of JShelter and analyzing the hotspots that impacted browsing performance the most. Finally, optimizations based on analysis results while leaving the high provided level of protection uncompromised were proposed and implemented. JShelter's fingerprinting protections based on image and audio data processing were optimized by extending them with a more efficient implementation using WebAssembly, which, in some cases, was faster by up to 50 times. The performance while loading web pages was increased with changes in configuration loading and injection mechanisms, on average by 13.5 %.
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