Showing papers on "Windows NT published in 2012"

Windows Internals, Part 2: Covering Windows Server 2008 R2 and Windows 7 (Windows Internals)

Abstract: Delve inside Windows architecture and internalsand see how core components work behind the scenes. Led by three renowned internals experts, this classic guide is fully updated for Windows 7 and Windows Server 2008 R2and now presents its coverage in two volumes. As always, you get critical insider perspectives on how Windows operates. And through hands-on experiments, youll experience its internal behavior firsthandknowledge you can apply to improve application design, debugging, system performance, and support. In Part 2, youll examine:Core subsystems for I/O, storage, memory management, cache manager, and file systems Startup and shutdown processes Crash-dump analysis, including troubleshooting tools and techniques

WPA2 security-bandwith trade-off in 802.11n peer-peer WLAN for IPv4 and IPv6 using Windows XP and Windows 7 operating systems

Abstract: In this paper, we present new results on the performance of IEEE 802.11n using open system (no security) and WPA2 security for Windows XP and Windows 7. Enabling WPA2 security results in approximately 4.4 Mbps less TCP throughput than open system for both IPv4 and IPv6 on Windows XP and up to 2.8 Mbps less TCP throughput for Windows 7. For both open system and WPA2 security, Windows 7 provides higher IPv4 and IPv6 bandwidth than Windows XP and IPv4 provides higher bandwidth than IPv6.

Performance Evaluation of Recent Windows Operating Systems

Abstract: The primary goal of most OSs (Operating Systems) is the efficient use of computer systems software and hardware resources. Since Windows OSs are most widely used OS for personal computers, they need to satisfy needs of all different kind of computer systems users. In comparison with Windows XP, new versions of the Windows OS; namely Windows Vista and Windows 7, introduce a number of new features and enhancements. Furthermore, performance improvement was imposed as one of the key design goals for both Windows Vista and Windows 7. This paper presents a performance evaluation of three latest versions of the Microsoft OS for personal computers; namely Windows XP, Windows Vista and Windows 7. OS performance measurement is done by means of a set of benchmark applications in the controlled environment. To ensure accurate, reliable and repeatable performance measurement results, we have created a performance measurement process and a performance evaluation model. Special emphasis is placed on evaluation areas with the greatest impact on the performance: CPU scheduling, memory management, graphic subsystem management, hard disk drive management and network performance. To determine the Windows OSs performance in different environments, performance measurement is done in three experiments. Experimental results indicate that Windows Vista and Windows 7 have several performance improvements on the stand-alone high-end computer system, but Windows XP outperforms Windows Vista and Windows 7 on the stand-alone low-end computer system. Furthermore, on network computer system Windows Vista and Windows 7 show network performance improvements mostly for the traffic with medium-sized packets.

Parallel Data Mining with the Message Passing Interface Standard on Clusters of Personal Computers

Abstract: : Piles of personal computers (PoPCs) have begun to challenge the performance of the traditional Massively Parallel Processors (MPPs) and the less traditional networks of workstations (NOWs) as platforms for parallel computing. Large clusters of PCs have reached and at times exceeded the performance of modern MPPs at a fraction of the cost. Built with commodity components, these clusters can be constructed for about half the cost of a comparable NOW. The primary competing operating systems (OIS) in use on PoPCs are Linux and Windows NT. This thesis investigation compares the performance of an NT cluster with that of a Linux cluster, a NOW, and an MPP. A comparison of the MPI tools available for NT is also accomplished. These comparisons are made using the Pallas benchmark suite for MPI and a parallel data mining algorithm. This data mining technique, known as the Genetic Rule and Classifier Construction Environment (GRaCCE), uses a genetic algorithm to mine decision rules from data. Results from experimentation and statistical analysis have produced three important conclusions. First, NT clusters are viable, cost effective alternatives to Linux clusters, NOWs, and MPPs for parallel computing. Second, the two primary communication libraries currently available for NT-PaTENT MPI and MPI/Pro-are statistically equivalent in performance. Third, the parallel GRaCCE algorithm is capable of relatively good speedup and efficiency, even for significantly unbalanced processor workloads, if the effects of first loop iteration caching are ignored.

The Implementation of a RAM Disk

Abstract: RAM disk uses the memory of a computer to construct a high speed, high reliable storage space. Though it is useful, there is little information on the development of RAM disk, especially on Microsoft Windows platform. On Windows platform, RAM disk has to be realized though writing Windows drivers. Implement drivers for Windows is a challenging task that only a small group of programmer can handle for many years. Now, with the new Windows Driver Foundation (WDF), this task is much easier. In this paper, Microsoft’s skeleton RAM disk driver in Windows Driver Kit (WDK) was analyzed and modified. At last, a full function, resizable RAM disk driver was got.

A Chess-Playing Robot Based on SERCOS

Abstract: This paper presents a chess-playing robot and its control system based on SERCOS. Thanks to Windows NT operating system and RTX real-time extension, the control system is excellent in real-time property. The whole system, supported by a standard IPC hardware platform and a modularized architecture of system software, is open-ended and expansible. In addition, the chess-playing software makes a contribution to the excellent interaction between players and the chess-playing robot.

The development of Windows CE serial port software based on C

Abstract: Aiming at the problem that almost all of the serial communication program based on Windows CE platform were called using C + + API and the C# programming was seldom usedThe C# language was used to develop serial communications software based on Windows CEThe program mainly uses the VS2008 Serial control,rely on an asynchronous operation to complete reading and writingThe experiments results showed that the program can normally receive the data from computer to complete the serial communication

Research in Monitoring Performance of Disk in Windows NT System

Abstract: Based on Windows NT(5.0) OS,it can monitor the Read-and-write performance of disk under Windows NT in different ways(application layer,kernel layer) so as to improve traditional mechanical drives as well as the perfor-mance of SSD.The article introduces the basic framework of ETW mechanism(Event Tracing for Windows);the implement principle of ETW technology;the application of ETW technology in monitoring the Read-and-write performance of physical disk;It also does analyze to the path of reading and writing data from application layer to driver layer under Windows NT,introduces the realization and distinguishing feature of driver HOOK technology in kernel;put forward the concrete implementation in monitoring Read-and-write performance of physical disk of driver HOOK technology;compares the merits and demerits of the two ways.In the end,the article will introduce the application prospect of the realization of Read-and-write performance of physical disk of driving mode.

Security Objects and Parameters Issues in Windows and Linux

Abstract: operating system, various objects are existed which are graphically shown to the users on his/her operating system. Each object has a security attributes that identifies its access control list. This list has an entry for each system user with access privileges. Reading the files (or all the files in a directory), writing the file or files and execute the file or files (if it is an executable file, or program) are most common privileges included. Thus, an Access Control List (ACL) is a table that tells a computer which user has to given the access rights for a particular system object, such as a file directory or individual file. Each operating system uses the access control list but in different manner. Linux operating system is based on the POSIX ACL and Windows O/S (Microsoft Windows NT/2000) is based on the ACL. This paper presents the analysis of Linux POSIX ACL and the Windows ACL, based on the various parameters.

Design and Implementation of a Process-Protecting System in Windows NT

Abstract: One of the pressing problems facing security software today is that the defense strength for its process is not high, which makes the self-protection of software so inadequate that malicious application can terminate it by some ways. After analyzed the current status of the technology of process protection, a process-protecting project which is proposed in this paper, utilizes SSDT hook, inline hook and technique of two processes and three threads to construct a process-protecting system of high strength and multi-layered. This system contains three prevention mechanisms——monitor, guard, restore, can remedy the deficiency in a lot of security software that strength of software self-defense is not high, and enhance the ability of self-protection about software. Finally, experimental testing validate that the system has a strong ability to protect the process and terminate the malicious program to eliminate its threat in Windows. Therefore, it is effective for this system to further safeguard the safe operation of security software.

The Data Fusion of Chess-Playing Robot Based on SERCOS

Abstract: This paper presents a data fusion system of chess-playing robot based on SERCOS. Owing to the environment of Windows NT + RTX, especially the SERCOS bus interface card, the control system is excellent in real-time property, more importantly, the highly efficiency of data fusion and image processing is guaranteed and therefore the good interaction between people and robot is ensured.