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Browsing by Subject "operating systems"

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  • thumbnail.journal.alt
    Item type:Book, Access status: Restricted ,
    Informatyka w ogólnym zarysie
    (Wydawnictwa Naukowo-Techniczne, 2003) Brookshear, Glenn J.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Portable userspace virtual filesystem switch
    (Wydawnictwa AGH, 2013) Faber, Łukasz; Boryczko, Krzysztof
    Multiple different filesystems - including disk-based, network, distributed, abstract - are an integral part of every operating system. They are usually written as kernel modules and abstracted to the user via a virtual filesystem switch. In this paper, we analyze the feasibility of reimplementing the virtual filesystem switch as a userspace daemon and applicability of this approach in real-life usage. Such reimplementation will require a way to virtualize processes behavior related to filesystem operations. The problem is non-trivial, as we as-sume limited capabilities of the VFS switch implemented in userspace. We present a layered architecture comprising of a monitoring process, the VFS abstraction and real filesystem implementations. All working in userspace. Then, we evaluate this solution in four areas: portability, feasibility, usability, and performance. Our results demonstrate possible gains in the use of a userspace-based approach with monolithic kernels, but also underline problems that are encountered in this approach.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Systemy operacyjne dla systemów wbudowanych
    (Data obrony: 2019-01-22) Maraj, Kamil
    Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej