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Faculté des Sciences appliquées
Faculté des Sciences appliquées
MASTER THESIS
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Unikraft - System calls implementation

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Rizzo, Bernard ULiège
Promotor(s) : Mathy, Laurent ULiège ; Gain, Gaulthier ULiège
Date of defense : 6-Sep-2021/7-Sep-2021 • Permalink : http://hdl.handle.net/2268.2/13293
Details
Title : Unikraft - System calls implementation
Translated title : [fr] Unikraft - Implémentation d'appels système
Author : Rizzo, Bernard ULiège
Date of defense  : 6-Sep-2021/7-Sep-2021
Advisor(s) : Mathy, Laurent ULiège
Gain, Gaulthier ULiège
Committee's member(s) : Fontaine, Pascal ULiège
Leduc, Guy ULiège
Language : English
Number of pages : 86
Keywords : [en] virtualization,
[en] virtual machine,
[en] unikernel,
[en] Unikraft,
[en] operating system,
[en] system call,
[en] futex
Discipline(s) : Engineering, computing & technology > Computer science
Target public : Researchers
Professionals of domain
Student
Complementary URL : https://www.unikraft.org/
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en sciences informatiques, à finalité spécialisée en "computer systems security"
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[en] Unikernels are a recent virtualization solution providing lightweight, single-purpose virtual machines for the cloud with excellent performance in terms of throughput, memory consumption, boot time and a reduced attack surface, to name a few metrics. They leverage specialization and the use of minimalistic Operating Systems (OSes) to achieve these goals. However, their fundamental drawback is that they require applications to be manually ported to them, often requiring significant engineering work. Unikraft aims to solve these issues by providing a framework for building highly specialized and optimized unikernel images, where only the relevant components from the kernel and libraries are included.

With system calls, applications can invoke the different services provided by the OS. In a traditional OS these system calls are expensive, while with unikernels they are equivalent to regular function calls.
Often, on a unikernel, these syscalls are not yet implemented and the applications might break without them. In this master thesis, system call kill to send any signal to a process and system call futex for fast users-space locking are ported to Unikraft.
At the moment, there are over 146 syscalls implemented, which is already enough to run a rich set of mainstream applications, frameworks and languages.


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Author

  • Rizzo, Bernard ULiège Université de Liège > Master sc. informatiques, à fin.

Promotor(s)

Committee's member(s)

  • Fontaine, Pascal ULiège Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes informatiques distribués
    ORBi View his publications on ORBi
  • Leduc, Guy ULiège Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Réseaux informatiques
    ORBi View his publications on ORBi
  • Total number of views 83
  • Total number of downloads 9










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