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Virtualizing IO through THE IO Memory Management Unit
Virtualizing IO through THE IO Memory Management Unit

... Efficient access to IO under virtualization is important ...
Secure Virtual Architecture: Security for Commodity Software Systems
Secure Virtual Architecture: Security for Commodity Software Systems

... I thank my committee members Madhusudan Parthasarathy, Sam King, and Greg Morrisett for their interest in and feedback on my research work. Their suggestions have made this work better. I thank my collaborators and co-authors, including Nathan Dautenhahn, Nicolas Geoffray, Dinakar Dhurjati, Brent Mon ...
CS162 Operating Systems and Systems Programming Lecture 1
CS162 Operating Systems and Systems Programming Lecture 1

... • Would this complexity make sense if there were only one application that you cared about? ...
CS162 Operating Systems and Systems Programming Lecture 1
CS162 Operating Systems and Systems Programming Lecture 1

... • Problem: Run multiple applications in such a way that they are protected from one another • Goal: ...


... Heterogeneous parallel computing combines general purpose processors with accelerators to efficiently execute both sequential control-intensive and data-parallel phases of applications. This thesis aims to increase the programmability of heterogeneous parallel systems formed by CPUs and massively da ...
Intel SGX Explained - Cryptology ePrint Archive
Intel SGX Explained - Cryptology ePrint Archive

... by creating execution threads, which are assigned by the operating system to the computer’s logical processors. A thread contains an execution context (§ 2.6), which is the information necessary to perform a computation. For example, an execution context stores the address of the next instruction th ...
系統程式
系統程式

...  Information is copied to a faster storage system on a temporary basis  Assumption: Data will be used again soon.  Programmable registers, instr. cache, etc. ...
Operating System Concepts
Operating System Concepts

... ƒ Information is copied to a faster storage system on a temporary basis ƒ Assumption: Data will be used again soon. ƒ Programmable registers, instr. cache, etc. ...
Partitioning Implementations for IBM E p5 Servers
Partitioning Implementations for IBM E p5 Servers

... 3.2.1 Accessing the ASMI using a Web browser . . . . . . . . . . . . . . . . . . . . 65 3.2.2 Accessing the ASMI using the HMC . . . . . . . . . . . . . . . . . . . . . . . . . 65 3.2.3 Network configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 3.2.4 Service pro ...
Operating Systems: Internals and Design Principles (2
Operating Systems: Internals and Design Principles (2

... This book is about the concepts, structure, and mechanisms of operating systems. Its purpose is to present, as clearly and completely as possible, the nature and characteristics of modern-day operating systems. This task is challenging for several reasons. First, there is a tremendous range and vari ...
NUMA Best Practices for Dell PowerEdge 12th
NUMA Best Practices for Dell PowerEdge 12th

... Dell™ PowerEdge™ 12th generation servers that use either 2- or 4-processor sockets are NUMA-capable (NonUniform Memory Access) by default. Memory on these systems is broken up into “local” and “remote” memory, based on how near the memory is to a specific core executing a thread. Accessing remote me ...
Electrical Engineering and Computer Science Department Technical
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... hybrid runtimes (HRTs), runtimes that run as kernels, and that enjoy full hardware access and control over abstractions to the machine. The primary claim of this dissertation is that the hybrid runtime model can provide significant benefits to parallel runtimes and the applications that run on top ...
Mac OS 8 Revealed
Mac OS 8 Revealed

... such as programmers, product managers, engineering managers, systems integrators, information system professionals, and instructional designers. Technically oriented computer enthusiasts might also enjoy this tour. This book illustrates many Mac OS 8 user features and describes many of the system’s ...
Attack and Defense with Hardware-Aided Security
Attack and Defense with Hardware-Aided Security

... environment. With the continuing widespread of malicious software and new vulnerabilities revealing every day, protecting the heterogeneous computing systems across the Internet has become a daunting task. Our approach to this challenge consists of two directions. The first direction aims to gain a ...
Linux - PUC-Rio
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... Symmetric Multiprocessing  Linux 2.0 was the first Linux kernel to support ...
The Architecture of a Worldwide Distributed System
The Architecture of a Worldwide Distributed System

... period of learning as much as you can in as many different subjects that are interesting. In this respect I took full advantage of my Ph.D.: I did work ranging from programming my own EEPROMs, to secure network objects, digital video on demand, and a full blown new operating system with its own TCP/ ...
Operating Systems Concepts with Java
Operating Systems Concepts with Java

... • Process management: Chapters 4 through 8 describe the process concept and concurrency as the heart of modern operating systems. A process is the unit of work in a system. Such a system consists of a collection of concurrently executing processes, some of which are operating-system processes (those ...
A Virtual Machine Introspection Based Architecture for Intrusion
A Virtual Machine Introspection Based Architecture for Intrusion

... have sought to make user-level IDSes more attack resistant through “stealth,” i.e. by hiding the IDS using techniques similar to those used by attackers to hide their exploits, such as hiding IDS processes by modifying kernel structures and masking the presence of IDS files through the use of stegan ...
Red Hat Enterprise Linux 4 Update 1 EAL4 High Level Design
Red Hat Enterprise Linux 4 Update 1 EAL4 High Level Design

... of International Business Machines Corporation in the United States, other countries, or both. Linux is a registered trademark of Linus Torvalds. UNIX is a registered trademark of The Open Group in the United States and other countries. Intel and Pentium are trademarks of Intel Corporation in the Un ...
Red Hat Enterprise Linux 5 EAL4 High-Level Design Version 1.0.1
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... 1.3 Conventions used in this document........................................................................................................1 1.4 Terminology...........................................................................................................................................1 2 ...
Virtualization: State of the Art
Virtualization: State of the Art

... The material contained herein is not a license, either expressed or implied, to any IPR owned or controlled by any of the authors or developers of this material or the SCOPE Alliance. The material contained herein is provided on an “AS IS” basis and to the maximum extent permitted by applicable law, ...
PODARCH: Protecting Legacy Applications with a Purely Hardware
PODARCH: Protecting Legacy Applications with a Purely Hardware

... (under kapp ) with AES-GCM and can be imported over a USB device or from the cloud via an untrusted OS. We explain how an existing x86 application is setup and used in a P ODA RCH CPU below. Setup & Usage. In P ODA RCH, the application binary to be securely executed is encrypted with authenticated e ...
On the construction of operating systems for the - UvA-DARE
On the construction of operating systems for the - UvA-DARE

... I am writing this text on a Wang PC-240, a nearly 25-year old 286 machine. It was our first computer, which my father bought through a private-PC project of his employer, the Royal Dutch Airlines (KLM), where he worked as a programmer. We collected our machine on April 19th, 1988, I was 8 years old ...
MODERN OPERATING SYSTEMS Third Edition ANDREW S. …
MODERN OPERATING SYSTEMS Third Edition ANDREW S. …

... Seek time is 7x better, transfer rate is 1300 x better, capacity is 50,000 x better. Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 ...
Operating System
Operating System

... Computers are widely employed in almost all the activities of today’s modern man. They are used by people of all ages in a variety of environments. We recognize the computer as a set of devices, such as the main case, monitor, keyboard, mouse, etc., collectively called the hardware. In one session’s ...
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Paging

In computer operating systems, paging is one of the memory management schemes by which a computer stores and retrieves data from the secondary storage for use in main memory. In the paging memory-management scheme, the operating system retrieves data from secondary storage in same-size blocks called pages. The main advantage of paging over memory segmentation is that it allows the physical address space of a process to be noncontiguous. Before paging came into use, systems had to fit whole programs or their whole segments into storage contiguously, which caused various storage and fragmentation problems.Paging is an important part of virtual memory implementation in most contemporary general-purpose operating systems, allowing them to use secondary storage for data that does not fit into physical random-access memory (RAM).
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