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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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Connecting SD Memory Card to Microcontroller
Laurinc, Pavel ; Kubek, Ján (referee) ; Škarvada, Jaroslav (advisor)
Author concerns with SD memory cards and microcontroller Atmel ATmega128. He describes their architecture, features, properties and technology used in devices. He is mentioning principle of communication protocols used by SD card, through that cards can communicate with other connected devices. He analyzes the functionality of FAT file system. He describes the design and implementation of interfaces to connect the SD cards to microcontroller. He explains software solutions of this project and gives impartial view to usage and comparisons of implemented modes of communication witch card.
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Advanced Tools for Performance Measurement
Smrček, Jaromír ; Gajda, Zbyšek (referee) ; Kašpárek, Tomáš (advisor)
This thesis presents the I/O layer of Linux kernel and shows various tools for tuning and optimization of its performance. Many tools are presented and their usage and outputs are studied. The thesis then focuses on the means of combining such tools to create more applicable methodology of system analysis and monitoring. The practical part consists of applying SystemTap scripts for blktrace subsystem and creating a fragmentation monitoring tool with graphical output.
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Eluding and Evasion of IDS Systems
Černý, Marek ; Tobola, Jiří (referee) ; Žádník, Martin (advisor)
This paper analyzes network security devices called intrusion detection (ID) systems. In order to point out possible flaws, especially ID systems using signature analysis are examined. Based on this, methods to exploit possible vulnerabilities of these systems were designed. These methods were implemented into a simple program for ID systems efficiency evaluation. It can be used in a way entirely independent of particular network attack used in the test.
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Comparison of content projects of land consolidation in the Czech Republic and the Central European region
ZÍKOVÁ, Lucie
The aim of this thesis is the literature review and comparing the projects of land consolidation in the Czech Republic and the Slovak Republic. This work is based on the available literature, databases of public institutions and documents of Land office in Slovak Republic a private engineering office GEOPOZEM CB IN Budweis. The thesis includes the short history of the land consolidation until year 1993, when Czechoslovakia was split for two countries. Subsequently, the work is focused on individual files land consolidation, separately within the Czech and Slovak Republic, the selection of criteria for the comparison of various projects of land consolidation and analyzing the specific parameters describing the content of chosen land consolidation.
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Landscape structure and biodiversity - a proposal of landscape structure to reach higher biodiversity and sustainability in cadaster of Pěčín (Landscape Protected Area Orlické hory)
LEDEČOVÁ, Jana
In the present planning work there was studied the influence of anthropogenic load of the species of epigenic beetles in the cultural landscape. The landscape fragmentation has the primarily very significant impact on the ability of the survival of populations of beatle species. Using ground traps filled with ethylene glycol was realised capture of epigenic samples. The samples were classified according to the degree of tolerance to the antropogenic load into three groups. The first group forms eurytop samples with neutral habitat demands, which occurs in habitats very influenced by human being . The second group (RII) consists of more adaptable samples capable populate habitats medium influenced by man. The last one consists of samples with closest ecologic quantivalence - the relicts of I.cohort (R I). They have often character of relicts and in our monitored localities were not find on the whole. The traps were installed in four types of locations - cultural forest, wildlife corridor, field and along the stream. All the sites were located in the land register of the willage Pěčín in the part which is situated in the protected landscape area of Eagle mountains. The highest activity of samples and specimens was recorded in the field where predominated europyt sorts. In the other stations were higher occurence of more adaptable species. The land composition has the influence above all on the generic constitution of communities. In the landscape with a higher fragmentation and more land use predominate eurotop samples with less demands for habitat. Construed study confirmed this presumptions.
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Ecological consequences of habitat loss in landscape matrix and the effect on populations and communities of model species
HELLEBRANTOVÁ, Adéla
The effect of fragmentation on populations was studied using epigeic beetle collected by pitfall traps with ethylenglykol. Pitfall traps were placed at three sites and namely in: artifical spruce forest, bio-corridor and meadow in the vicinity of České Budějovice on agricultural landscape. The material was collected from May to September. Beetles were determined and classified into goups according to the level of tolerance to anthropogenic influence. The communities (species richness and its activity) were compared in cited biotopes (fragments) in the agricutlural landscape. The highest number of species and its activity was detected in the bio-corridor. The lowest number of species and its activity was found in the spruce forrest. Thel effect of size of biotope was not found. At a meadow and biocorridor previled beetle species named as eurytopic which are characteristic for deforested habitats strongly influenced by human activities. In the forest, the other half consisted of RII. Group, which are adaptable inhabiting habitat moderately affected by human activity.
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Distribution of carnivores inside and at the edge of forest habitats
ČERVINKA, Jaroslav
This thesis is focused on habitat preferences of carnivores in fragmented landscape. By using the scent station method, fine-scale utilization of forest-farm edges by mammalian predators in dependence on patch size was examined. Preferences for edge structures was detected and these structures were equally utilized by carnivores in large as well as in small forest fragments. This shows that edge effect was present in all fragments regardless the patch size.
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The belts along the roads as a biotope for organisms.
KRHUTOVÁ, Stanislava
The aim of the work was to describe the biodiversity of model groups of organisms (vascular plants, epigeic beetles and small mammals) in six transect crossing the two year old high way situated close to the town Písek (South Bohemia). The different methods were used for studied groups (phytocenological mapping, pitfall traps and mousetraps). The results documented the possibility of all studied organisms for the quick recolonization of new biotopes beside of the high way.
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