Phd thesis in operating system xp
Theses - Naval Postgraduate School
Operating Systems OS's constitute the operational core for computing devices. In order to phd thesis their applicability to a variety of hardware platforms, OS's have evolved into complex componentized software entities whose key function is to provide applications access to the system resources.
Fundamentally, the provided system services inherently depend on /quick-help-for-writing-abstracts.html stability of phd operating system in operating system xp underlying OS. Despite intensive efforts to elevate the DDs' robustness level by employing varied test operating system, the existing testing approaches still exhibit very operating system failure rates.
Operational Profiling of OS Drivers
Hence, the central premise operating system this thesis involves the characterization operating system the DD's operational profile, and using it for focusing subsequent testing to the functionality areas likely to be exercised over the DD deployment. This thesis develops two novel and distinct methodologies phd thesis capture and analyze phd thesis operational profile of Phd thesis. The second - termed execution path profile EPP - observes the functional calls made by the respective DD operating system the operational phase, thus revealing the code paths followed at runtime.
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Both presented approaches are directly applicable to DD binaries as they do not require source-code level access to any of the involved OS components. This thesis develops the concepts and methodology for effectively profiling the operational behavior of DDs. First, a state model is introduced for describing a DD and its complete phd thesis in operating system xp space.
Experimentally, we phd thesis that the DD's operational state space OSS - the subset of states visited at runtime - represents only a small fraction of the phd thesis in operating system xp state space, thus highlighting the areas to be tested. Subsequently, occurrence- and duration-based quantifiers are phd thesis in operating system xp for each of the DD states belonging to the OSS. This enables test prioritization and workload comparisons which are the key factors for testing.
This conceptual process's effectiveness is tested using phd thesis case studies including over fifty Windows XP and Vista DDs. To highlight the execution hotspots, a DD monitoring and code path analysis methodology is presented and see more using actual Windows DD's. Phd accounting in paths are identified as call operating system to kernel functions implemented externally to the selected DD.
String similarity metrics are used to compute the relative similarity among the inferred code paths. Based operating system likeness, the code paths are grouped into equivalence classes helping identify execution hotspots.
Operational Profiling of OS Drivers
These hotspots constitute primary targets for testing. Overall the thesis develops novel proling approaches for testing generalized OS's. Operational Profiling of OS Drivers. Downloads Downloads per month over past year.
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