Electrical Engineering and Computer Science Department Technical
... has always been willing to take the time to help, always with an uplifting note of humor and a smile. Fabián Bustamante has throughout been a source of candid conversation and genuine advice. Barney Maccabe has been an indispensable colleague and has always made me feel welcome in the HPC community. ...
... has always been willing to take the time to help, always with an uplifting note of humor and a smile. Fabián Bustamante has throughout been a source of candid conversation and genuine advice. Barney Maccabe has been an indispensable colleague and has always made me feel welcome in the HPC community. ...
Red Hat Enterprise Linux 4 Update 1 EAL4 High Level Design
... Intel and Pentium are trademarks of Intel Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others. This document is provided “AS IS” with no express or implied warranties. Use the information in this document ...
... Intel and Pentium are trademarks of Intel Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others. This document is provided “AS IS” with no express or implied warranties. Use the information in this document ...
Proceedings of the FREENIX Track: 2003 USENIX Annual Technical Conference
... The elements of the stackable BIOS are shown in Figure 1. The first element is LinuxBIOS. LinuxBIOS performs all of the steps necessary to initialize the hardware on the motherboard. The next step is ADLO, the “ADhesive LOader.” This is stackable BIOS software specifically written to serve as the “g ...
... The elements of the stackable BIOS are shown in Figure 1. The first element is LinuxBIOS. LinuxBIOS performs all of the steps necessary to initialize the hardware on the motherboard. The next step is ADLO, the “ADhesive LOader.” This is stackable BIOS software specifically written to serve as the “g ...
the thread - Bilkent University Computer Engineering Department
... Many library procedures may not be reentrant. – They are not designed to have a second call to itself from the same process before it is completed (not re-entrant). • (We are talking about non-recursive procedures.) – They may be using global variables. Hence may not be thread-safe. ...
... Many library procedures may not be reentrant. – They are not designed to have a second call to itself from the same process before it is completed (not re-entrant). • (We are talking about non-recursive procedures.) – They may be using global variables. Hence may not be thread-safe. ...
Dancing with Giants: Wimpy Kernels for On-demand Isolated I/O
... diverse peripheral devices of unmodified commodity OSes. Central to on-demand isolation of I/O channels is the notion of the wimpy kernel, which constructs these channels without affecting the underlying TCB; i.e., without modifying its security properties and increasing the verification effort [39, ...
... diverse peripheral devices of unmodified commodity OSes. Central to on-demand isolation of I/O channels is the notion of the wimpy kernel, which constructs these channels without affecting the underlying TCB; i.e., without modifying its security properties and increasing the verification effort [39, ...
Chapter 4: Threads
... multithreading (+) Thread creation is fast (+) Switching between threads is fast; efficient approach (+) Blocking systems calls defeat the purpose and have to be handled (-) A thread has to explicitly call a function to voluntarily give the CPU to some other thread (-) – example: thread_yield() Mult ...
... multithreading (+) Thread creation is fast (+) Switching between threads is fast; efficient approach (+) Blocking systems calls defeat the purpose and have to be handled (-) A thread has to explicitly call a function to voluntarily give the CPU to some other thread (-) – example: thread_yield() Mult ...
A comprehensive cross-development tool chain and runtime
... is platform and interconnect independent, scales well to large systems with any topology, and delivers the performance needed for high traffic bearing applications. Enea® LINX provides a high-level message passing programming model that makes it easy to break complex applications into simpler concur ...
... is platform and interconnect independent, scales well to large systems with any topology, and delivers the performance needed for high traffic bearing applications. Enea® LINX provides a high-level message passing programming model that makes it easy to break complex applications into simpler concur ...
投影片 1 - National Sun Yat
... secure feature set for virtualization of x86, x86_64, IA64, PowerPC, and other CPU architectures. It supports a wide range of guest operating systems including Windows®, Linux®, Solaris®, and various versions of the BSD operating systems. – Xen.org releases Xen 3.4 - The Yankee Groups Third Annual V ...
... secure feature set for virtualization of x86, x86_64, IA64, PowerPC, and other CPU architectures. It supports a wide range of guest operating systems including Windows®, Linux®, Solaris®, and various versions of the BSD operating systems. – Xen.org releases Xen 3.4 - The Yankee Groups Third Annual V ...
$doc.title
... advantages in using Linux, for example a lower cost of acquisition than that of proprietary operating systems, wide availability on different platforms and avoidance of dependence on one supplier. Linux is also perceived as being reliable, and the availability of the Linux source text provides the a ...
... advantages in using Linux, for example a lower cost of acquisition than that of proprietary operating systems, wide availability on different platforms and avoidance of dependence on one supplier. Linux is also perceived as being reliable, and the availability of the Linux source text provides the a ...
Operating system hardware reconfiguration
... systems can successfully undergo operating system hardware reconfigurations due to hardware changes where the operating system is reconfigured to support the new hardware. Furthermore, it can been reasonably concluded looking into the future that changes to the C2 system’s hardware should be adequat ...
... systems can successfully undergo operating system hardware reconfigurations due to hardware changes where the operating system is reconfigured to support the new hardware. Furthermore, it can been reasonably concluded looking into the future that changes to the C2 system’s hardware should be adequat ...
PowerPoint
... • The entire operating system, including all libraries and utilities can be built with a single command : “make world” • The source code for the system is placed in /usr/src during ...
... • The entire operating system, including all libraries and utilities can be built with a single command : “make world” • The source code for the system is placed in /usr/src during ...
Threads Implementation
... • Thread creation is done through clone() system call. • clone() allows a child task to share the address space of the parent task (process). • This sharing of the address space allows the cloned child task to behave much like a separate thread. A. Frank - P. Weisberg ...
... • Thread creation is done through clone() system call. • clone() allows a child task to share the address space of the parent task (process). • This sharing of the address space allows the cloned child task to behave much like a separate thread. A. Frank - P. Weisberg ...
FreeBSD for the Linux user
... • Linux has similar number of applications available in a number of different binary formats (RPM, Deb, and others, depending on the distribution). • Packages are built from the “ports tree” of which more later • FreeBSD and Linux roughly equal in this respect... ...
... • Linux has similar number of applications available in a number of different binary formats (RPM, Deb, and others, depending on the distribution). • Packages are built from the “ports tree” of which more later • FreeBSD and Linux roughly equal in this respect... ...
Module 4: Processes
... running even if part of it is blocked or is performing a lengthy operation, thereby increasing responsiveness to the user. For example, a multithreaded Web browser could ...
... running even if part of it is blocked or is performing a lengthy operation, thereby increasing responsiveness to the user. For example, a multithreaded Web browser could ...
Differences Between IBM eServer iSeries and pSeries Servers
... same time. This capability facilitates defining a general workload with several parts that operate at the same time, yet need to be isolated from each other in the way that separate partitioning allows. A good example of this use would be in an ASP or service provider that offered a highly tailored ...
... same time. This capability facilitates defining a general workload with several parts that operate at the same time, yet need to be isolated from each other in the way that separate partitioning allows. A good example of this use would be in an ASP or service provider that offered a highly tailored ...
4.1. Threads
... the process to which they belong by default. The benefit of sharing code and data is that it allows an application to have several different threads of activity within the same address space. ...
... the process to which they belong by default. The benefit of sharing code and data is that it allows an application to have several different threads of activity within the same address space. ...
Week_3 Operating system File
... A thread is a basic unit of CPU utilization; it comprises a thread ID, a program counter, a register set, and a stack. If a process has multiple threads of control, it can perform more than one task at a time. In certain situations, a single application may be required to perform several simil ...
... A thread is a basic unit of CPU utilization; it comprises a thread ID, a program counter, a register set, and a stack. If a process has multiple threads of control, it can perform more than one task at a time. In certain situations, a single application may be required to perform several simil ...
Linux+ Guide to Linux Certification
... • Amount of information a processor can process at one time is a major factor in clock speed – Measured in binary digits (bits) – The more information that can be worked on at once, the faster data can be manipulated Linux+ Guide to Linux Certification, 2e ...
... • Amount of information a processor can process at one time is a major factor in clock speed – Measured in binary digits (bits) – The more information that can be worked on at once, the faster data can be manipulated Linux+ Guide to Linux Certification, 2e ...
Threads (continued)
... • Deliver signal to specific thread to which it applies • E.g., illegal memory access, divide-by-zero, etc. ...
... • Deliver signal to specific thread to which it applies • E.g., illegal memory access, divide-by-zero, etc. ...
The Essence of UNIX and Linux
... • Linux is a UNIX-like operating system – Not written from the traditional UNIX code – Kernel created to look and act like UNIX • Enhancements include the POSIX standards • Linus Torvalds released it free of charge in 1991 ...
... • Linux is a UNIX-like operating system – Not written from the traditional UNIX code – Kernel created to look and act like UNIX • Enhancements include the POSIX standards • Linus Torvalds released it free of charge in 1991 ...
Power Point XP
... Can have long-running stateful handlers without freezes Scalable performance on multiple CPUs ...
... Can have long-running stateful handlers without freezes Scalable performance on multiple CPUs ...
UNIX
... the operations a boot loader must perform, making a 512 byte boot loader feasible. When more functionality is required, a multi-stage boot loader may be used. A multi-stage boot loader provides more function and flexibility by working around the 512 byte size limitation. Rather than consisting of a ...
... the operations a boot loader must perform, making a 512 byte boot loader feasible. When more functionality is required, a multi-stage boot loader may be used. A multi-stage boot loader provides more function and flexibility by working around the 512 byte size limitation. Rather than consisting of a ...
Power Point XP - FSU Computer Science
... Can have long-running stateful handlers without freezes Scalable performance on multiple CPUs ...
... Can have long-running stateful handlers without freezes Scalable performance on multiple CPUs ...
What is an operating system?
... OS Real-Time Extensions Extension of an OS by real-time components Cooperation between RT- and non-RT parts ...
... OS Real-Time Extensions Extension of an OS by real-time components Cooperation between RT- and non-RT parts ...
OS Portal: an economic approach for making an embedded kernel
... The goal of the server-side module linking is to make a resource-limited embedded kernel extensible, while keeping the imposed overheads minimal. As mentioned above, the OS Portal process on the server machine receives requests from client kernels and performs tasks according to those requests. Ther ...
... The goal of the server-side module linking is to make a resource-limited embedded kernel extensible, while keeping the imposed overheads minimal. As mentioned above, the OS Portal process on the server machine receives requests from client kernels and performs tasks according to those requests. Ther ...
Linux kernel
The Linux kernel is a Unix-like computer operating system kernel. It is widely used world-wide; the Linux operating system is based on it and deployed on both traditional computer systems such as personal computers and servers, usually in the form of Linux distributions, and on various embedded devices such as routers and NAS appliances. The Android operating system for tablet computers, smartphones and smartwatches is also based atop the Linux kernel.The Linux kernel was initially conceived and created in 1991 by Finnish computer science student Linus Torvalds, for his personal computer and with no cross-platform intentions, but has since expanded to support a huge array of computer architectures, many more than other operating systems or kernels. Linux rapidly attracted developers and users who adapted code from other free software projects for use with the new operating system. The Linux kernel has received contributions from nearly 12,000 programmers from more than 1,200 companies, including some of the largest software and hardware vendors.The Linux kernel API, the application programming interface (API) through which user programs interact with the kernel, is meant to be very stable and to not break userspace programs (some programs, such as those with GUIs, rely on other APIs as well). As part of the kernel's functionality, device drivers control the hardware; ""mainlined"" device drivers are also meant to be very stable. However, the interface between the kernel and loadable kernel modules (LKMs), unlike in many other kernels and operating systems, is not meant to be very stable by design.The Linux kernel, developed by contributors worldwide, is a prominent example of free and open source software. Day-to-day development discussions take place on the Linux kernel mailing list (LKML). The Linux kernel is released under the GNU General Public License version 2 (GPLv2), with some firmware images released under various non-free licenses.