Benchmarking Real-time Operating Systems for use in Radio Base
... UART Universal Asynchronous Receiver/Transmitter, computer hardware component which ...
... UART Universal Asynchronous Receiver/Transmitter, computer hardware component which ...
On the construction of operating systems for the - UvA-DARE
... of sitting in the back of our car with a pile of big boxes. I am convinced that this was a turning point in my life, as without this machine, I would not have ended up where I am today; completing my PhD thesis on a topic in Computer Science. The machine sparked my enthusiasm and fascination for com ...
... of sitting in the back of our car with a pile of big boxes. I am convinced that this was a turning point in my life, as without this machine, I would not have ended up where I am today; completing my PhD thesis on a topic in Computer Science. The machine sparked my enthusiasm and fascination for com ...
C Programming under Linux
... within a few years it had reached a 1.0 release. 13 years later, and at version 2.4, Linux is one of the most successful software projects ever, having produced a fast, secure, stable operating system. Anyone can view the source code of Linux and modify it if they want. ...
... within a few years it had reached a 1.0 release. 13 years later, and at version 2.4, Linux is one of the most successful software projects ever, having produced a fast, secure, stable operating system. Anyone can view the source code of Linux and modify it if they want. ...
etc/rc.boot
... init When the kernel has started itself (has been loaded into memory, has started running, and has initialised all device drivers and data structures and such), it finishes its own part of the boot process by starting a user level program, init. Thus, init is always the first process (its process n ...
... init When the kernel has started itself (has been loaded into memory, has started running, and has initialised all device drivers and data structures and such), it finishes its own part of the boot process by starting a user level program, init. Thus, init is always the first process (its process n ...
Threads and Events
... started from within the handler. The event source should never be responsible for creating a new thread in which to execute the handler, since the source will not know if the handler even needs to be threaded, and unnecessarily creating a new thread each time a handler is called may itself result in ...
... started from within the handler. The event source should never be responsible for creating a new thread in which to execute the handler, since the source will not know if the handler even needs to be threaded, and unnecessarily creating a new thread each time a handler is called may itself result in ...
CHAPTER 2: Computer Clusters for Scalable Parallel Computing
... 1. The shared-nothing architecture is used in most clusters, where the nodes are connected through the I/O bus. The shared-nothing configuration in Part (a) simply connects two or more autonomous computers via a LAN such as Ethernet. 2. The shared-disk architecture is in favor of small-scale availab ...
... 1. The shared-nothing architecture is used in most clusters, where the nodes are connected through the I/O bus. The shared-nothing configuration in Part (a) simply connects two or more autonomous computers via a LAN such as Ethernet. 2. The shared-disk architecture is in favor of small-scale availab ...
Interrupts
... The concept of interrupts was introduced, with Atlas, and used to provide some concurrency in computing by allowing I/O devices to proceed with data transfers while the CPU performed other tasks instead of constantly polling the I/O device. An interrupt facility allows the I/O devices to signal the ...
... The concept of interrupts was introduced, with Atlas, and used to provide some concurrency in computing by allowing I/O devices to proceed with data transfers while the CPU performed other tasks instead of constantly polling the I/O device. An interrupt facility allows the I/O devices to signal the ...
Final Exam Information
... b. Multiprocessor systems can cost less than equivalent multiple single-processor systems c. A failure of one processor will not halt the system , only slow it down d. They may come in device specific processors Question 4 Marks: 1 ...
... b. Multiprocessor systems can cost less than equivalent multiple single-processor systems c. A failure of one processor will not halt the system , only slow it down d. They may come in device specific processors Question 4 Marks: 1 ...
Operating Systems - Learn IT With Davo
... Operating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... Operating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Kluge_Habilitation - OPUS Augsburg
... chips. After several years of multicore processors, in the last years the first manycore processors with 64 and more cores have reached the markets. Concurrently, designers of safetycritical systems strive to integrate more and more powerful software in their systems. For example, advanced driver as ...
... chips. After several years of multicore processors, in the last years the first manycore processors with 64 and more cores have reached the markets. Concurrently, designers of safetycritical systems strive to integrate more and more powerful software in their systems. For example, advanced driver as ...
An Operating System for Multicore and Clouds: Mechanisms and Implementation
... the right amount of computing, memory, I/O, and storage to meet their needs at any given time. Unfortunately, counter to the vision, current IaaS systems do not provide the user the same experience as if they were accessing an infinitely scalable multiprocessor computer where resources such as memor ...
... the right amount of computing, memory, I/O, and storage to meet their needs at any given time. Unfortunately, counter to the vision, current IaaS systems do not provide the user the same experience as if they were accessing an infinitely scalable multiprocessor computer where resources such as memor ...
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... which do not have the knowledge or budget to modify Linux at the source code level. Special modifications of Linux are mentioned where relevant but have not been considered in detail. It should also be noted that Linux distributions typically provide large numbers of application programs and other a ...
... which do not have the knowledge or budget to modify Linux at the source code level. Special modifications of Linux are mentioned where relevant but have not been considered in detail. It should also be noted that Linux distributions typically provide large numbers of application programs and other a ...
Unit OS 11: Startup, Crashes, Troubleshooting
... Reads and uses Ntbootdd.sys to perform disk I/O if the boot volume is on a SCSI disk different than the system volume This is a copy of the SCSI miniport driver used when the OS is booted ...
... Reads and uses Ntbootdd.sys to perform disk I/O if the boot volume is on a SCSI disk different than the system volume This is a copy of the SCSI miniport driver used when the OS is booted ...
chapter 1 - University of Virginia
... is properly saved to the operating system (Anderson). This further increases that amount of work the operating system must perform. Computer systems use a multi-layered approach to memory. Bulk storage devices such as hard drives are used to store information because they are cheap, but they are als ...
... is properly saved to the operating system (Anderson). This further increases that amount of work the operating system must perform. Computer systems use a multi-layered approach to memory. Bulk storage devices such as hard drives are used to store information because they are cheap, but they are als ...
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 ...
... 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 ...
Secure Virtualization for an Ever Increasing Vehicle
... access to a number of the on-board processor registers. For example, it could have fatal consequences if an arbitrary user program were to modify the contents of the memory protection unit. This is an operation that is reserved for trusted code that resides in the OS kernel and which runs with kerne ...
... access to a number of the on-board processor registers. For example, it could have fatal consequences if an arbitrary user program were to modify the contents of the memory protection unit. This is an operation that is reserved for trusted code that resides in the OS kernel and which runs with kerne ...
Institutionen för systemteknik Department of Electrical Engineering Examensarbete
... 2.2 Firmware Design Flow for multiple applications If there are two or more tasks running in the DSP core, in fact, only one application can be executed at certain time, the hardware resource allocation should be decided by running a program above the application programs, which is called “super mod ...
... 2.2 Firmware Design Flow for multiple applications If there are two or more tasks running in the DSP core, in fact, only one application can be executed at certain time, the hardware resource allocation should be decided by running a program above the application programs, which is called “super mod ...
A Taxonomy of Computer Program Security Flaws, with Examples
... may be less visible than those of the bridges he describes, they can be equally damaging. But the history of software failures, apart from a few highly visible ones, [2,3] is relatively undocumented. This report collects and organizes a number of actual security flaws that have caused failures, so t ...
... may be less visible than those of the bridges he describes, they can be equally damaging. But the history of software failures, apart from a few highly visible ones, [2,3] is relatively undocumented. This report collects and organizes a number of actual security flaws that have caused failures, so t ...
VLSI Processor Architecture
... performance. Performance can be measured in many ways; typical measurements include instructions per second, total required memory bandwidth, and instructions needed both statically and dynamically for an application. Although all these measurements have their place, they can also be misleading. The ...
... performance. Performance can be measured in many ways; typical measurements include instructions per second, total required memory bandwidth, and instructions needed both statically and dynamically for an application. Although all these measurements have their place, they can also be misleading. The ...
Advanced Operating Systems
... “if something has to be done by the user program itself, it is wasteful to do it in a ...
... “if something has to be done by the user program itself, it is wasteful to do it in a ...
Threads Threads, User vs. Kernel Threads, Java Threads, Threads
... Removes both drawbacks of the Many-to-One Model Creating a new threads requires work by the kernel ...
... Removes both drawbacks of the Many-to-One Model Creating a new threads requires work by the kernel ...
Chapter 4: Threads
... Lock only the critical sections of code Only let one thread update the variable at a time. Use only thread safe system functions Make function reentrant Avoid the use of global and static variables Any information required to be safe is stored in buffers allocated by the call ...
... Lock only the critical sections of code Only let one thread update the variable at a time. Use only thread safe system functions Make function reentrant Avoid the use of global and static variables Any information required to be safe is stored in buffers allocated by the call ...
The APIC Approach to High Performance Network Interface Design
... connection is mapped into the process’ virtual address space with read/write permissions. The process now becomes the owner of the connection, and it can control the connection by reading or writing the registers on the interface directly, without having to make system calls or otherwise interact wi ...
... connection is mapped into the process’ virtual address space with read/write permissions. The process now becomes the owner of the connection, and it can control the connection by reading or writing the registers on the interface directly, without having to make system calls or otherwise interact wi ...