operating system




ROS: an open-source Robot Operating System
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This paper gives an overview of ROS, an opensource robot operating system . ROS is not an operating system in the traditional sense of process management and scheduling; rather, it provides a structured communications layer above the host operating systems of a

NOX: towards an operating system for networks
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As anyone who has operated a large network can attest, enterprise networks are difficult to manage. That they have remained so despite significant commercial and academic efforts suggests the need for a different network management paradigm. Here we turn to operating

The design of the UNIX operating system
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Amoeba: A distributed operating system for the 1990s
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ABSTRACT A description is given of the Amoeba distributed operating system , which appears to users as a centralized system but has the speed, fault tolerance, security safeguards, and flexibility required for the 1990s. The Amoeba software is based on objects

Corey: An Operating System for Many Cores.
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Multiprocessor application performance can be limited by the operating system when the application uses the operating system frequently and the operating system services use data structures shared and modified by multiple processing cores. If the application does not

Operating System Support for Virtual Machines.
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A virtual-machine monitor (VMM) is a useful technique for adding functionality below existing operating system and application software. One class of VMMs (called Type II VMMs) builds on the abstractions provided by a host operating system . Type II VMMs are elegant and

The Apertos reflective operating system : The concept and its implementation
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This paper proposes a framework for constructing an operating system in an open and mobile computing environment. The framework provides object/metaobject separation and metahierarchy. In the framework, we view object migration as a basic mechanism to

Operating system protection through program evolution.
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From the beginning of electronic computing until 15 years ago, the gameof attack and defense was played on a system by system basis, with defenders relying on physical security and ad-hoc operating system protection methods and attackers guessing

Overview of the Chorus distributed operating system
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The CHORUS technology has been designed for building new generations of open, distributed, scalable operating systems. CHORUS has the following main characteristics: a communication-based architecture, relying on a minimal Nucleus which integrates

A linux-based real-time operating system
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This work describes the design, implementation, and possible applications of Real-Time Linux| a hard real-time version of the Linux operating system . In this system , a standard time- sharing OS and a real-time executive run on the same computer. Interrupt controller

Using sparse capabilities in a distributed operating system
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Most distributed operating systems constructed to date have lacked a unifying mechanism for naming and protection. In this paper we discuss a system , Amoeba, that uses capabilities for naming and protecting objects. In contrast to traditional, centralized operating systems, in

Microkernel operating system architecture and Mach
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Modular architectures based on a microkemel are suitable bases for the design and implemen-tation of Operating systems. Prototype systems employing microkemel architectures are achieving the levels of functionality and performance expected and

Software defects and their impact on system availability: A study of field failures in operating systems
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In recent years, software defects have become the dominant cause of customer outage, and improvements in software reliability and quality have not kept pace with those of hardware. Yet, software defects are not well enough understood to provide a clear methodology for

Operating System Support for NVM Hybrid Main Memory
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Technology trends may soon favor building main memory as a hybrid between DRAM and non-volatile memory, such as flash or PC-RAM. We describe how the operating system might manage such hybrid memories, using semantic information not available in other

CP-Miner: A Tool for Finding Copy-paste and Related Bugs in Operating System Code.
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Copy-pasted code is very common in large software because programmers prefer reusing code via copy-paste in order to reduce programming effort. Recent studies show that copy- paste is prone to introducing bugs and a significant portion of operating system bugs

The Nachos instructional operating system
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In teaching operating systems at an undergraduate level, we believe that it is important to provide a project that is realistic enough to show how real operating systems work, yet is simple enough that the students can understand and modify it in significant ways. A number

Pilot: An operating system for a personal computer
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The Pilot operating system provides a single-user, single-language environment for higher level software on a powerful personal computer. Its features include virtual memory, a large fiat file system , streams, network communication facilities, and concurrent programming

Fine-grained dynamic instrumentation of commodity operating system kernels
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We have developed a technology, fine-grained dynamic instrumentation of commodity kernels, which can splice (insert) dynamically generated code before almost any machine code instruction of a completely unmodified running commodity operating system kernel

performance
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Computer systems are rapidly changing. Over the next few years, we will see wide-scale deployment of dynamically-scheduled processors that can issue multiple instructions every clock cycle, execute instructions out of order, and overlap computation and cache misses

Operating system concepts
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