Download or read book A Study of Disk Performance Optimization written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Response time is one of the most important performance measures associated with a typical multi-user system. Response time, in turn, is bounded by the performance of the input/output (I/O) subsystem. Other than the end user and some external peripherals, the slowest component of the I/O subsystem is the disk drive. One standard strategy for improving I/O subsystem performance uses high-performance hardware like Small Computer Systems Interface (SCSI) drives to improve overall response time. SCSI hardware, unfortunately, is often too expensive to use in low-end multi-user systems. The low-end multi-user systems commonly use inexpensive Integrated Drive Electronics (IDE) disk drives to keep overall costs low. On such IDE based multi-user systems, reducing the Central Processing Unit (CPU) overhead associated with disk I/O is critical to system responsiveness. This thesis explores the impact of PCI bus mastering Direct Memory Access (DMA) on the performance of systems with IDE drives. DMA is a data transfer protocol that allows data to be sent directly from an attached device to a computer system's main memory, thereby reducing CPU overhead. PCI bus mastering allows modern IDE disk controllers to manipulate main memory without utilizing motherboard-resident DMA controllers. 0D0AUsing a series of experiments, this thesis examines the impact of PCI bus mastering DMA on IDE performance for synchronous I/O, relative to Programmed Input/Output (PIO) and SCSI performance. Experiment results show that PCI bus mastering DMA, when used properly, improves the responsiveness and throughput of IDE drives by as much as a factor of seven. The magnitude of this improvement shows the importance of operating system support for DMA in low-end multi-user systems. Additionally, experimental results demonstrate that performance gains associated with SCSI are dependent on system usage and operating system support for advanced SCSI capabilities. Therefore, under many circumstances, high-performance SCSI drives are not cost effective when compared with IDE bus mastering DMA capable drives.
Download or read book OCP Oracle9i Performance Tuning Study Guide written by Joseph C. Johnson and published by John Wiley & Sons. This book was released on 2006-07-14 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here's the book you need to prepare for Exam 1Z0-033: Oracle9i Database: Performance Tuning. This Study Guide provides: In-depth coverage of official exam objectives Practical information on optimizing Oracle9i databases Hundreds of challenging review questions, in the book and on the CD Authoritative coverage of all exam objectives, including: Using Diagnostic and Tuning Tools Monitoring and Managing the Buffer Cache Optimizing Sort Operations Detecting and Resolving Lock Contention Diagnosing Shared Server Performance Issues Using Oracle Blocks Efficiently Tuning SQL Statements Configuring Resource Manager Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
Download or read book MCSA MCSE Windows 2000 Professional Study Guide written by Lisa Donald and published by John Wiley & Sons. This book was released on 2006-02-20 with total page 841 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here's the book you need to prepare for Exam 70-210, Installing, Configuring, and Administering Microsoft Windows 2000 Professional. This study guide provides: In-depth coverage of every exam objective--all the information you need Practical information on installing, configuring, and administering Windows 2000 Professional Hundreds of challenging review questions, in the book and on the CD Leading-edge exam preparation software, including a testing engine, electronic flashcards, and simulation software Authoritative coverage of all exam objectives, including: Installing Windows 2000 Professional Implementing and conducting administration of resources Implementing, managing, and troubleshooting hardware devices and drivers Monitoring and optimizing system performance and reliability Configuring and troubleshooting the desktop environment Implementing, managing, and troubleshooting network protocols and services Implementing, monitoring, and troubleshooting security Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
Download or read book MCSA MCSE Windows XP Professional Study Guide written by Lisa Donald and published by John Wiley & Sons. This book was released on 2008-04-21 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here's the book you need to prepare for the Installing, Configuring, and Administering Microsoft Windows XP Professional exam (70-270). This Study Guide was developed to meet the exacting requirements of today's certification candidates. In addition to the consistent and accessible instructional approach that made Sybex the preferred choice for certification exam candidates, this book provides: Practical information on installing, configuring, and administering Windows XP Professional Updated and expanded information on key exam topics, including new Service Pack 2 enhancements Leading-edge exam preparation software, including a testing engine, electronic flashcards, and simulation software Authoritative coverage of all exam objectives, including: Installing Windows XP Professional Implementing and conducting administration of resources Implementing, managing, and troubleshooting hardware devices and drivers Monitoring and optimizing system performance and reliability Configuring and troubleshooting the desktop environment Implementing, managing, and troubleshooting network protocols and services Implementing, monitoring, and troubleshooting security
Download or read book On Performance Optimization and System Design of Flash Memory Based Solid State Drives in the Storage Hierarchy written by Feng Chen and published by . This book was released on 2010 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: As an emerging storage technology, Flash Memory based Solid State Drive (SSD) has shown a high potential to fundamentally change the existing Hard Disk Drive (HDD) based storage systems. Unlike conventional magnetic disks, SSD is built on semiconductor chips and has no mechanical components (e.g. rotating disk platters). This architectural difference brings many attractive technical features, such as high random data access performance and low power consumption. Most importantly, these unique features could potentially address the long-existing technical limitations of conventional magnetic disks. Due to this reason, SSD has been called a 'pivotal technology' that may completely revolutionize current computer storage systems.
Download or read book Big Data Benchmarks Performance Optimization and Emerging Hardware written by Jianfeng Zhan and published by Springer. This book was released on 2014-11-10 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly revised selected papers of the 4th and 5th workshops on Big Data Benchmarks, Performance Optimization, and Emerging Hardware, BPOE 4 and BPOE 5, held respectively in Salt Lake City, in March 2014, and in Hangzhou, in September 2014. The 16 papers presented were carefully reviewed and selected from 30 submissions. Both workshops focus on architecture and system support for big data systems, such as benchmarking; workload characterization; performance optimization and evaluation; emerging hardware.
Download or read book Storage Systems written by Alexander Thomasian and published by Academic Press. This book was released on 2021-10-13 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: Storage Systems: Organization, Performance, Coding, Reliability and Their Data Processing was motivated by the 1988 Redundant Array of Inexpensive/Independent Disks proposal to replace large form factor mainframe disks with an array of commodity disks. Disk loads are balanced by striping data into strips—with one strip per disk— and storage reliability is enhanced via replication or erasure coding, which at best dedicates k strips per stripe to tolerate k disk failures. Flash memories have resulted in a paradigm shift with Solid State Drives (SSDs) replacing Hard Disk Drives (HDDs) for high performance applications. RAID and Flash have resulted in the emergence of new storage companies, namely EMC, NetApp, SanDisk, and Purestorage, and a multibillion-dollar storage market. Key new conferences and publications are reviewed in this book.The goal of the book is to expose students, researchers, and IT professionals to the more important developments in storage systems, while covering the evolution of storage technologies, traditional and novel databases, and novel sources of data. We describe several prototypes: FAWN at CMU, RAMCloud at Stanford, and Lightstore at MIT; Oracle's Exadata, AWS' Aurora, Alibaba's PolarDB, Fungible Data Center; and author's paper designs for cloud storage, namely heterogeneous disk arrays and hierarchical RAID. - Surveys storage technologies and lists sources of data: measurements, text, audio, images, and video - Familiarizes with paradigms to improve performance: caching, prefetching, log-structured file systems, and merge-trees (LSMs) - Describes RAID organizations and analyzes their performance and reliability - Conserves storage via data compression, deduplication, compaction, and secures data via encryption - Specifies implications of storage technologies on performance and power consumption - Exemplifies database parallelism for big data, analytics, deep learning via multicore CPUs, GPUs, FPGAs, and ASICs, e.g., Google's Tensor Processing Units
Download or read book Block Trace Analysis and Storage System Optimization written by Jun Xu and published by Apress. This book was released on 2018-11-16 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand the fundamental factors of data storage system performance and master an essential analytical skill using block trace via applications such as MATLAB and Python tools. You will increase your productivity and learn the best techniques for doing specific tasks (such as analyzing the IO pattern in a quantitative way, identifying the storage system bottleneck, and designing the cache policy). In the new era of IoT, big data, and cloud systems, better performance and higher density of storage systems has become crucial. To increase data storage density, new techniques have evolved and hybrid and parallel access techniques—together with specially designed IO scheduling and data migration algorithms—are being deployed to develop high-performance data storage solutions. Among the various storage system performance analysis techniques, IO event trace analysis (block-level trace analysis particularly) is one of the most common approaches for system optimization and design. However, the task of completing a systematic survey is challenging and very few works on this topic exist. Block Trace Analysis and Storage System Optimization brings together theoretical analysis (such as IO qualitative properties and quantitative metrics) and practical tools (such as trace parsing, analysis, and results reporting perspectives). The book provides content on block-level trace analysis techniques, and includes case studies to illustrate how these techniques and tools can be applied in real applications (such as SSHD, RAID, Hadoop, and Ceph systems). What You’ll Learn Understand the fundamental factors of data storage system performance Master an essential analytical skill using block trace via various applications Distinguish how the IO pattern differs in the block level from the file level Know how the sequential HDFS request becomes “fragmented” in final storage devices Perform trace analysis tasks with a tool based on the MATLAB and Python platforms Who This Book Is For IT professionals interested in storage system performance optimization: network administrators, data storage managers, data storage engineers, storage network engineers, systems engineers
Download or read book MCTS Windows 7 Configuration Study Guide written by William Panek and published by John Wiley & Sons. This book was released on 2010-07-23 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare for certification in Windows 7 configuration with this all-new study guide This comprehensive book guides readers through preparation for Microsoft's brand new MCTS: Windows 7, Configuring exam (70-680). You'll find 100% coverage of all exam objectives; practical, real-world scenarios; hands-on exercises, and challenging review questions, both in the book and on the CD included with the book. Prepares you for the new exam 70-680, the Microsoft Certified Technology Specialist certification for Windows 7; Windows 7 is Microsoft's new operating system releasing in late 2009 Shows you how to install, configure, and maintain Windows 7 for the exam Covers upgrading and migrating; deploying Windows 7; configuring hardware applications, network connectivity, access to resources, and mobile computing; monitoring and maintaining; handling backup and recovery, and more This is the ideal guide to prepare you for Microsoft's new Windows 7 certification.
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference on V STOL and STOL Aircraft Ames Research Center Moffett Field California April 4 5 1966 written by and published by . This book was released on 1966 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Programming Persistent Memory written by Steve Scargall and published by Apress. This book was released on 2020-01-09 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning and experienced programmers will use this comprehensive guide to persistent memory programming. You will understand how persistent memory brings together several new software/hardware requirements, and offers great promise for better performance and faster application startup times—a huge leap forward in byte-addressable capacity compared with current DRAM offerings. This revolutionary new technology gives applications significant performance and capacity improvements over existing technologies. It requires a new way of thinking and developing, which makes this highly disruptive to the IT/computing industry. The full spectrum of industry sectors that will benefit from this technology include, but are not limited to, in-memory and traditional databases, AI, analytics, HPC, virtualization, and big data. Programming Persistent Memory describes the technology and why it is exciting the industry. It covers the operating system and hardware requirements as well as how to create development environments using emulated or real persistent memory hardware. The book explains fundamental concepts; provides an introduction to persistent memory programming APIs for C, C++, JavaScript, and other languages; discusses RMDA with persistent memory; reviews security features; and presents many examples. Source code and examples that you can run on your own systems are included. What You’ll Learn Understand what persistent memory is, what it does, and the value it brings to the industry Become familiar with the operating system and hardware requirements to use persistent memory Know the fundamentals of persistent memory programming: why it is different from current programming methods, and what developers need to keep in mind when programming for persistence Look at persistent memory application development by example using the Persistent Memory Development Kit (PMDK)Design and optimize data structures for persistent memoryStudy how real-world applications are modified to leverage persistent memoryUtilize the tools available for persistent memory programming, application performance profiling, and debugging Who This Book Is For C, C++, Java, and Python developers, but will also be useful to software, cloud, and hardware architects across a broad spectrum of sectors, including cloud service providers, independent software vendors, high performance compute, artificial intelligence, data analytics, big data, etc.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microsoft Windows 7 Unleashed written by Paul McFedries and published by Pearson Education. This book was released on 2009-07-14 with total page 1097 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microsoft® Windows 7 Unleashed gives IT professionals, serious power users, and true geeks the powerhouse Windows 7 tweaks, hacks, techniques, and insights they need: knowledge that simply can’t be found anywhere else. Top Windows expert Paul McFedries dives deep into Windows 7, returning with the most powerful ways to handle everything from networking to administration, security to scripting. McFedries begins with advanced customization, covering everything from startup/shutdown to the file system. He introduces new ways to tune Windows 7 performance, police Windows via Group Policies, tweak the Registry, make the most of Windows 7s management tools, and control Windows 7 from the command line. You’ll find thorough coverage of securing Windows 7, including detailed guidance on web and email security and hardening both wireless and wired networks. You’ll also discover better ways to troubleshoot devices, networks, and startup; add Macs to Windows networks; and automate Windows administration with state-of-the-art scripting techniques. This book is packed with expert tips, tricks, and troubleshooting techniques drawn from McFedries’ unsurpassed Windows experience. If you want maximum value and performance from your Windows 7 PCs, you won’t find a more valuable resource. Customize everything about Windows 7: IE8, startup/shutdown, file systems, the Start menu, Taskbar, and more Systematically monitor, tune, and optimize Windows performance–including practical techniques for accelerating startup Set up an easy, automated 9-Step maintenance schedule for any Windows 7 PC Unleash Windows 7s power user tools, including Group Policies, the Registry, MMC, and the command line Secure Windows 7 with security settings: auto-lock, Windows Firewall, Windows Defender, parental controls, BitLocker encryption, and more Protect your web privacy with Windows 7s new InPrivate Browsing Solve problems with Windows 7, startup, networking, and hardware Set up reliable Windows 7 networks, and manage them efficiently Safely provide remote access and VPN connectivity Use Windows 7 as a Web server Program the Windows Scripting Host and Windows PowerShell ON THE WEB: Free Online Edition! When Microsoft releases the final product, you can get an updated edition of this book absolutely free! All examples and source code presented in this book
Download or read book MCITP Administrator Microsoft SQL Server 2005 Optimization and Maintenance Study Guide written by Victor Isakov and published by John Wiley & Sons. This book was released on 2007-07-10 with total page 699 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering Microsoft’s brand-new SQL 2005 administrator exam, this study guide walks you through setting up, maintaining, and troubleshooting database solutions. You’ll review key topics such as defining high-availability solutions, automating administrative tasks, defining security solutions, monitoring and troubleshooting the database server, and designing and executing deployments. Plus, the CD-ROM features leading exam prep software with an assessment test, test engine of case study practice questions, and electronic flashcards.
Download or read book Adaptive Processes for Optimization of Disk Drive Read write Performance written by Stephen Reeves Genheimer and published by . This book was released on 1987 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oracle Solid State Disk Tuning written by Donald K. Burleson and published by Rampant TechPress. This book was released on 2005 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Targeted at Oracle professionals who need fast and accurate working examples of complex issues, Oracle In-focus books target specific areas of Oracle technology in a concise manner. Plenty of working code is provided without a lot of theory, allowing database managers to solve their problems quickly without reviewing data that they already know. All code scripts are available for instant download from a companion web site.
