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Database Performance at Scale - Felipe Cardeneti Mendes - Bog - APress - Plusbog.dk

Discover critical considerations and best practices for improving database performance based on what has worked, and failed, across thousands of teams and use cases in the field. This open access book provides practical guidance for understanding the database-related opportunities, trade-offs, and traps you might encounter while trying to optimize data-intensive applications for high throughput and low latency. Whether you are building a new system from the ground up or trying to optimize an existing use case for increased demand, this book covers the essentials. The book begins with a look at the many factors impacting database performance at the extreme scale that today’s game changing applications face—or at least hope to achieve. You’ll gain insight into the performance impact of both technical and business requirements, and how those should influence your decisions around database infrastructure and topology. The authors share an inside perspective on often-overlooked engineering details that could be constraining—or helping—your team’s database performance. The book also covers benchmarking and monitoring practices by which to measure and validate the outcomes from the decisions that you make. The ultimate goal of the book is to help you discover new ways to optimize database performance for your team’s specific use cases, requirements, and expectations. What You Will LearnUnderstand often overlooked factors that impact database performance at scaleRecognize data-related performance and scalability challenges associated with your project Select a database architecture that’s suited to your workloads, use cases, and requirementsAvoid common mistakes that could impede your long-term agility and growthJumpstart teamwide adoption of best practices for optimizing database performance at scaleWho ThisBook Is ForIndividuals and teams looking to optimize distributed database performance for an existing project or to begin a new performance-sensitive project with a solid and scalable foundation. This will likely include software architects, database architects, and senior software engineers who are either experiencing or anticipating pain related to database latency and/or throughput.

High-Performance Web Apps with FastAPI - Malhar Lathkar - Bog - APress - Plusbog.dk

Build APIs and web apps based on Asynchronous Server Gateway Interface (ASGI). This book provides a comprehensive explanation of using Pydantic models to construct the request/response objects in a FASTAPI path operation. You’ll start by reviewing type hints in Python and the asynchronous processing concepts. One of the highlights of FastAPI is its auto generation of API docs. Pydantic library is the main pillar on top of which FastAPI is built. You’ll see that ASGI has a far better performance compared to most of the other popular Python frameworks as they implement Web server Gateway Interface (WSGI), which is synchronous in nature and hence having slower response time. This book thoroughly explains how FastAPI interacts asynchronously with relational as well as NOSQL databases. Modern web apps use template engines to interact with the front-end. In this book, you will learn to use jinja2 templates and static assets. Swagger UI and OpenAPI standards are also covered in detail. Finally, different options of deployment of FastAPI app have been explored in this book. This book uses practical examples to empower you to build high performance APIsWhat You'll LearnDevelop robust and high-performance web appsDeploy the FastAPI app for public availability using cloud services such as Deta and Docker containerUnderstand the important building blocks of a web app such as form handling, templating and database interactionWho This Book Is ForAspiring and the experienced Python developers looking to leverage the flexibility of Python and the powerful features introduced in Modern Python. Computer science Engineering students at graduate and postgraduate level will also benefit immensely from the practical approach adapted in the book.

Sensors and Protocols for Industry 4.0 - Bharathi N - Bog - APress - Plusbog.dk

This book Identifies the right sensors and single board computers for any application to achieve the best performance in Industry 4.0 settings and applications. You''ll see what technologies apply the IIoT with elegant efficiency to drastically improve remote monitoring and controlling, decision making, and preventative maintenance. Start by learning exactly what Industry 4.0 is and advance your knowledge from simple Internet of Things projects to full-on Industrial IoT deployment. You''ll automate advanced processes, incorporate professional procedures, and take your IoT skills to a professional level. Then move into the protocols and standards expected for industrial applications of sensors at an industrial level. Match the right SBCs to the right use cases and sensor technologies to optimize efficiency and ensure peak performance. Then move into setting up a smart factory and monitoring your supply chain with tech. Finally, you''ll dive into programming with the Node-Red platform and Python packages for CPS. By the end of this book, you''ll have jumped from simple, home-based IoT systems up to industrial and professional applications. Conquer your supply chain and both forward and backward processes with accessible Maker tech! What You''ll Learn - - Support industrial applications of SBCs and Maker tech - - Achieve peak performance by combining the right sensors with the right processing boards - - Improve remote monitoring and controlling drastically for better decision making and preventative maintenance Who This Book Is For Students and aspiring professionals working with Internet of things technologies moving towards industrial applications. Prerequisite knowledge in basic Internet of Things, simple python concepts, automation, and industry procedures is required for this book. Engineers and scientists who are pursuing research and contributing to industrial internet of things might also benefit.

Expert Performance Indexing in Azure SQL and SQL Server 2022 - Jason Strate - Bog - APress - Plusbog.dk

Take a deep dive into perhaps the single most important facet of query performance-indexes-and how to best use them. Newly updated for SQL Server 2022 and Azure SQL, this fourth edition includes new guidance and features related to columnstore indexes, improved and consolidated content on Query Store, deeper content around Intelligent Query Processing, and other updates to help you optimize query execution and make performance improvements to even the most challenging workloads. The book begins with explanations of the types of indexes and how they are stored in a database. Moving further into the book, you will learn how statistics are critical for optimal index usage and how the Index Advisor can assist in reviewing and optimizing index health. This book helps you build a clear understanding of how indexes work, how to implement and use them, and the many options available to tame even the most large and complex workloads. What You Will Learn - Properly index row store, columnstore, and memory-optimized tables - Make use of Intelligent Query Processing for faster query results - Review statistics to understand indexing choices made by the optimizer - Apply indexing strategies such as covering indexes, included columns, and index intersections - Recognize and remove unnecessary indexes - Design effective indexes for full-text, spatial, and XML data types Who This Book Is For Azure SQL and SQL Server administrators and developers who are ready to improve the performance of their database environment by thoughtfully building indexes to speed up queries that matter the most and make a difference to the business

Pro .NET Benchmarking - Andrey Akinshin - Bog - APress - Plusbog.dk

Use this in-depth guide to correctly design benchmarks, measure key performance metrics of .NET applications, and analyze results. This book presents dozens of case studies to help you understand complicated benchmarking topics. You will avoid common pitfalls, control the accuracy of your measurements, and improve performance of your software. Author Andrey Akinshin has maintained BenchmarkDotNet (the most popular .NET library for benchmarking) for five years and covers common mistakes that developers usually make in their benchmarks. This book includes not only .NET-specific content but also essential knowledge about performance measurements which can be applied to any language or platform (common benchmarking methodology, statistics, and low-level features of modern hardware). What You''ll Learn - Be aware of the best practices for writing benchmarks and performance tests - Avoid the common benchmarking pitfalls - Know the hardware and software factors that affect application performance - Analyze performance measurements Who This Book Is For .NET developers concerned with the performance of their applications

Pro SQL Server 2022 Wait Statistics - Enrico Van De Laar - Bog - APress - Plusbog.dk

Use this practical guide to analyze and troubleshoot SQL Server performance using wait statistics. You''ll learn to identify precisely why your queries are running slowly. And you''ll know how to measure the amount of time consumed by each bottleneck so you can focus attention on making the largest improvements first. This edition is updated to cover analysis of wait statistics current with SQL Server 2022. Whether you are new to wait statistics, or already familiar with them, this book provides a deeper understanding on how wait statistics are generated and what they mean for your SQL Server instance''s performance. The book goes beyond the most common wait types into the more complex and performance-threatening wait types. You''ll learn about per-query wait statistics and session-based wait statistics, and the types of problems they can help you solve. The different wait types are categorized by their area of impact, including CPU, IO, Latching, Locking, and many more. Clear examples are included to help you gain practical knowledge of why and how specific wait times increase or decrease, how they impact your SQL Server''s performance, and what you can do to improve performance. After reading this book, you won''t want to be without the valuable information that wait statistics provide regarding where you should be spending your limited tuning time to maximize performance and value to your business. What You''ll Learn - Understand how the SQL Server engine processes requests - Identify resource bottlenecks in a running SQL Server instance - Locate wait statistics information inside DMVs and Query Store - Analyze the root cause of sub-optimal performance - Diagnose I/O contention and locking contention - Benchmark SQL Server performance - Improve database performance by lowering overall wait time Who This Book Is For Database administrators who want to identify and resolve performance bottlenecks, those who want to learn more about how the SQL Server engine accesses and uses resources inside SQL Server, and administrators concerned with achieving-and knowing they have achieved-optimal performance

Query Store for SQL Server 2019 - Grant Fritchey - Bog - APress - Plusbog.dk

Apply the new Query Store feature to identify and fix poorly performing queries in SQL Server. Query Store is an important and recent feature in SQL Server that provides insight into the details of query execution and how that execution has changed over time. Query Store helps to identify queries that aren''t performing well, or that have regressed in their performance. Query Store provides detailed information such as wait stats that you need to resolve root causes, and it allows you to force the use of a known good execution plan. With SQL Server 2017 and later you can automate the correction of regressions in performance. Query Store for SQL Server 2019 helps you protect your database''s performance during upgrades of applications or version of SQL Server. The book provides fundamental information on how Query Store works and best practices for implementation and use. You will learn to run and interpret built-in reports, configure automatic plan correction, and troubleshoot queries using Query Store when needed. Query Store for SQL Server 2019 helps you master Query Store and bring value to your organization through consistent query execution times and automate correction of regressions. What You''ll Learn - Apply best practices in implementing Query Store on production servers - Detect and correct regressions in query performance - Lower the risk of performance degradation following an upgrade - Use tools and techniques to get the most from Query Store - Automate regression correction and other uses of Query Store Who This Book Is For SQL Server developers and administrators responsible for query performance on SQL Server. Anyone responsible for identifying poorly performing queries will be able to use Query Store to find these queries and resolve the underlying issues.

Great Big Agile - Jeff Dalton - Bog - APress - Plusbog.dk

Big Agile leaders need an empirical, "high-trust" model that provides guidance for scaling and sustaining agility and capability throughout a modern technology organization. This book presents the Agile Performance Holarchy (APH)-a "how-ability" model that provides agile leaders and teams with an operating system to build, evaluate, and sustain great agile habits and behaviors. The APH is an organizational operating system based on a set of interdependent, self-organizing circles, or holons, that reflect the empirical, object-oriented nature of agility. As more companies seek the benefits of Agile within and beyond IT, agile leaders need to build and sustain capability while scaling agility-no easy task-and they need to succeed without introducing unnecessary process and overhead. The APH is drawn from lessons learned while observing and assessing hundreds of agile companies and teams. It is not a process or a hierarchy, but a holarchy, a series of performance circles with embedded and interdependent holons that reflect the behaviors of high-performing agile organizations. Great Big Agile provides implementation guidance in the areas of leadership, values, teaming, visioning, governing, building, supporting, and engaging within an all-agile organization. What You''ll Learn - Model the behaviors of a high-performance agile organization - Benefit from lessons learned by other organizations that have succeeded with Big Agile - Assess your level of agility with the Agile Performance Holarchy - Apply the APH model to your business - Understand the APH performance circles, holons, objectives, and actions - Obtain certification for your company, organization, or agency Who This Book Is For Professionals leading, or seeking to lead, an agile organization who wish to use an innovative model to raise their organization''s agile performance from one level to the next, all the way to mastery

Low-Level Programming - Igor Zhirkov - Bog - APress - Plusbog.dk

Learn Intel 64 assembly language and architecture, become proficient in C, and understand how the programs are compiled and executed down to machine instructions, enabling you to write robust, high-performance code. Low-Level Programming explains Intel 64 architecture as the result of von Neumann architecture evolution. The book teaches the latest version of the C language (C11) and assembly language from scratch. It covers the entire path from source code to program execution, including generation of ELF object files, and static and dynamic linking. Code examples and exercises are included along with the best code practices. Optimization capabilities and limits of modern compilers are examined, enabling you to balance between program readability and performance. The use of various performance-gain techniques is demonstrated, such as SSE instructions and pre-fetching. Relevant Computer Science topics such as models of computation and formal grammars are addressed, and their practical value explained. What You''ll Learn Low-Level Programming teaches programmers to: - Freely write in assembly language - Understand the programming model of Intel 64 - Write maintainable and robust code in C11 - Follow the compilation process and decipher assembly listings - Debug errors in compiled assembly code - Use appropriate models of computation to greatly reduce program complexity - Write performance-critical code - Comprehend the impact of a weak memory model in multi-threaded applications Who This Book Is For Intermediate to advanced programmers and programming students

SAP SuccessFactors Talent: Volume 1 - Venki Krishnamoorthy. - Bog - APress - Plusbog.dk

Take an in-depth look at SAP SuccessFactors talent modules with this complete guide to configuration, administration, and best practices. This two-volume series follows a logical progression of SAP SuccessFactors modules that should be configured to complete a comprehensive talent management solution. The authors walk you through fully functional simple implementations in the primary chapters for each module before diving into advanced topics in subsequent chapters. In volume 1, we start with a brief introduction. The next two chapters jump into the Talent Profile and Job Profile Builder. These chapters lay the structures and data that will be utilized across the remaining chapters which detail each module. The following eight chapters walk you through building, administering, and using a goal plan in the Goal Management module as well as performance forms in the Performance Management module. The book also expands on performance topics with the 360 form and continuous performance management in two additional chapters. We then dive into configuring the calibration tool and how to set up calibration sessions in the next two chapters before providing a brief conclusion. Within each topic, the book touches on the integration points with other modules as well as internationalization. The authors also provide recommendations and insights from real world experience. Having finished the book, you will have an understanding of what comprises a complete SAP SuccessFactors talent management solution and how to configure, administer, and use each module within it. You will: · Develop custom talent profile portlets · Integrate Job Profile Builder with SAP SuccessFactors talent modules · Set up security, group goals, and team goals in goals management with sample XML · Configure and launch performance forms including rating scales and route maps · Configure and administrate the calibration module and its best practices

Dynamic SQL - Edward Pollack - Bog - APress - Plusbog.dk

Take a deep dive into the many uses of dynamic SQL in Microsoft SQL Server. This edition has been updated to use the newest features in SQL Server 2016 and SQL Server 2017 as well as incorporating the changing landscape of analytics and database administration. Code examples have been updated with new system objects and functions to improve efficiency and maintainability. Executing dynamic SQL is key to large-scale searching based on user-entered criteria. Dynamic SQL can generate lists of values and even code with minimal impact on performance. Dynamic SQL enables dynamic pivoting of data for business intelligence solutions as well as customizing of database objects. Yet dynamic SQL is feared by many due to concerns over SQL injection or code maintainability. Dynamic SQL: Applications, Performance, and Security in Microsoft SQL Server helps you bring the productivity and user-satisfaction of flexible and responsive applications to your organization safely and securely. Your organization''s increased ability to respond to rapidly changing business scenarios will build competitive advantage in an increasingly crowded and competitive global marketplace. With a focus on new applications and modern database architecture, this edition illustrates that dynamic SQL continues to evolve and be a valuable tool for administration, performance optimization, and analytics. What You''ill Learn - Build flexible applications that respond to changing business needs - Take advantage of creative, innovative, and productive uses of dynamic SQL - Know about SQL injection and be confident in your defenses against it - Address performance concerns in stored procedures and dynamic SQL - Troubleshoot and debug dynamic SQL to ensure correct results - Automate your administration of features within SQL Server Who This Book is For Developers and database administrators looking to hone and build their T-SQL coding skills. The book is ideal for developers wanting to plumb the depths of application flexibility and troubleshoot performance issues involving dynamic SQL. The book is also ideal for programmers wanting to learn what dynamic SQL is about and how it can help them deliver competitive advantage to their organizations.

BizTalk Server 2016 - Agustin Mantaras - Bog - APress - Plusbog.dk

Gain an in depth view of optimizing the performance of BizTalk Server. This book provides best practices and techniques for improving development of high mission critical solutions. You''ll see how the BizTalk Server engine works and how to proactively detect and remedy potential bottlenecks before they occur. The book starts with an overview of the BizTalk Server internal mechanisms that will help you understand the optimizations detailed throughout the book. You''ll then see how the mechanisms can be applied to a BizTalk Server environment to improve low and high latency throughput scenarios. A section on testing BizTalk server solutions will guide you through the most frequently adopted techniques used to develop solutions such as performance and unit testing as part of the development cycle. With BizTalk Server 2016 you''ll see how to apply side-by-side versioning to your solutions to reduce the chances of downtime, You''ll also review instrumentation techniques using Event Traces for windows and business activity monitoring (BAM). While the book is focused on the latest version of BizTalk Server, most of the topics discussed will also work with BizTalk Server 2013R2. What You''ll Learn - Review BizTalk Server internals and how the message engine works - Understand BizTalk Server architecture - Gather and analyze BizTalk Server performance data - Develop BizTalk Server performance solutions - Use advanced troubleshooting tools to help diagnose your platform Who This Book Is For Those who have strong BizTalk and .NET Framework knowledge and want to get their BizTalk Server knowledge to the next level

Rapid Java Persistence and Microservices - Raj Malhotra - Bog - APress - Plusbog.dk

Gain all the essentials you need to create scalable microservices, which will help you solve real challenges when deploying services into production. This book will take you through creating a scalable data layer with polygot persistence. You''ll cover data access and query patterns in Spring and JPA in high-performance environments. As part of this topic, you''ll see the advantages of multiple persistence frameworks in Java and especially the easy persistence offered by NoSQL databases and reactive web solutions. The last few chapters present advanced concepts that are useful for very high-performance real-time applications: you''ll implement applications using Spring''s good support for Web sockets in their raw form as well as for connecting to message brokers such as RabbitMQ. This can be useful for applications such as navigation systems and gaming platforms. What You Will Learn - Build end-to-end modern applications using microservices, persistence essentials, reactive web, and other high-performance concepts - Master Spring''s configuration options - Secure microservices efficiently - Monitor your services post deployment Who This Book Is For Java developers and architects interested in microservices.

Beginning Spring Data - Andres Sacco - Bog - APress - Plusbog.dk

Use the popular Spring Data project for data access and persistence using various Java-based APIs such as JDBC, JPA, MongoDB, and more. This book shows how to easily incorporate data persistence and accessibility into your microservices, cloud-native applications, and monolithic enterprise applications. It also teaches you how to perform unit and performance testing of a component that accesses a database. And it walks you through an example of each type of SQL and NoSQL database covered. After reading this book, you''ll be able to create an application that interacts with one or multiple types of databases, and conduct unit and performance testing to analyze possible problems. Source code is available on GitHub. What You''ll Learn - Become familiar with the Spring Data project and its modules for data access and persistence - Explore various SQL and NoSQL persistence types - Uncover the persistence and domain models, and handle transaction management for SQL - Migrate database changes and versioning for SQL - Dive into NoSQL persistence with Redis, MongoDB, Neo4j, and Cassandra - Handle reactive database programming and access with R2DBC and MongoDB - Conduct unit, integration, and performance testing, and more Who This Book Is For Experienced Java software application developers; programmers with experience using the Spring framework or the Spring Boot micro framework

Azure SQL Hyperscale Revealed - Zoran Barac - Bog - APress - Plusbog.dk

Take a deep dive into the Azure SQL Database Hyperscale Service Tier and discover a new form of cloud architecture from Microsoft that supports massive databases. The new horizontally scalable architecture, formerly code-named Socrates, allows you to decouple compute nodes from storage layers. This radically different approach dramatically increases the scalability of the service. This book shows you how to leverage Hyperscale to provide next-level scalability, high throughput, and fast performance from large databases in your environment. The book begins by showing how Hyperscale helps you eliminate many of the problems of traditional high-availability and disaster recovery architecture. You''ll learn how Hyperscale overcomes storage capacity limitations and issues with scale-up times and costs. With Hyperscale, your costs do not increase linearly with database size and you can manage more data than ever at a lower cost. The book teaches you how to deploy, configure, and monitor an Azure SQL Hyperscale database in a production environment. The book also covers migrating your current workloads from traditional architecture to Azure SQL Hyperscale. What You Will Learn - Understand the advantages of Hyperscale over traditional architecture - Deploy a Hyperscale database on the Azure cloud (interactively and with code) - Configure the advanced features of the Hyperscale database tier - Monitor and scale database performance to suit your needs - Back up and restore your Azure SQL Hyperscale databases - Implement disaster recovery and failover capability - Compare performance of Hyperscale vs traditional architecture - Migrate existing databases to the Hyperscale service tier Who This Book Is For SQL architects, data engineers, and DBAs who want the most efficient and cost-effective cloud technologies to run their critical data workloads, and those seeking rapid scalability and high performance and throughput while utilizing large databases

Analytics Optimization with Columnstore Indexes in Microsoft SQL Server - Edward Pollack - Bog - APress - Plusbog.dk

Meet the challenge of storing and accessing analytic data in SQL Server in a fast and performant manner. This book illustrates how columnstore indexes can provide an ideal solution for storing analytic data that leads to faster performing analytic queries and the ability to ask and answer business intelligence questions with alacrity. The book provides a complete walk through of columnstore indexing that encompasses an introduction, best practices, hands-on demonstrations, explanations of common mistakes, and presents a detailed architecture that is suitable for professionals of all skill levels. With little or no knowledge of columnstore indexing you can become proficient with columnstore indexes as used in SQL Server, and apply that knowledge in development, test, and production environments. This book serves as a comprehensive guide to the use of columnstore indexes and provides definitive guidelines. You will learn when columnstore indexes shouldbe used, and the performance gains that you can expect. You will also become familiar with best practices around architecture, implementation, and maintenance. Finally, you will know the limitations and common pitfalls to be aware of and avoid. As analytic data can become quite large, the expense to manage it or migrate it can be high. This book shows that columnstore indexing represents an effective storage solution that saves time, money, and improves performance for any applications that use it. You will see that columnstore indexes are an effective performance solution that is included in all versions of SQL Server, with no additional costs or licensing required. What You Will LearnImplement columnstore indexes in SQL ServerKnow best practices for the use and maintenance of analytic data in SQL ServerUse metadata to fully understand the size and shape of data stored in columnstore indexesEmploy optimal ways to load, maintain, and delete data from large analytic tablesKnow how columnstore compression saves storage, memory, and timeUnderstand when a columnstore index should be used instead of a rowstore indexBe familiar with advanced features and analyticsWho This Book Is ForDatabase developers, administrators, and architects who are responsible for analytic data, especially for those working with very large data sets who are looking for new ways to achieve high performance in their queries, and those with immediate or future challenges to analytic data and query performance who want a methodical and effective solution

Building and Managing High-Performance Distributed Teams - Alberto S. Silveira Jr. - Bog - APress - Plusbog.dk

Snowflake SnowPro Advanced Architect Certification Companion - Ruchi Soni - Bog - APress - Plusbog.dk

Master the intricacies of Snowflake and prepare for the SnowPro Advanced Architect Certification exam with this comprehensive study companion. This book provides robust and effective study tools to help you prepare for the exam and is also designed for those who are interested in learning the advanced features of Snowflake. The practical examples and in-depth background on theory in this book help you unleash the power of Snowflake in building a high-performance system. The best practices demonstrated in the book help you use Snowflake more powerfully and effectively as a data warehousing and analytics platform. Reading this book and reviewing the concepts will help you gain the knowledge you need to take the exam. The book guides you through a study of the different domains covered on the exam: Accounts and Security, Snowflake Architecture, Data Engineering, and Performance Optimization. You''ll also be well positioned to apply your newly acquired practical skills to real-world Snowflake solutions. You will have a deep understanding of Snowflake to help you take full advantage of Snowflake''s architecture to deliver value analytics insight to your business. What You Will Learn - Gain the knowledge you need to prepare for the exam - Review in-depth theory on Snowflake to help you build high-performance systems - Broaden your skills as a data warehouse designer to cover the Snowflake ecosystem - Optimize performance and costs associated with your use of the Snowflake data platform - Share data securely both inside your organization and with external partners - Apply your practical skills to real-world Snowflake solutions Who This Book Is For Anyone who is planning to take the SnowPro Advanced Architect Certification exam, those who want to move beyond traditional database technologies and build their skills to design and architect solutions using Snowflake services, and veteran database professionals seeking an on-the-job reference to understand one of the newest and fastest-growing technologies in data

Modern Arm Assembly Language Programming - Daniel Kusswurm - Bog - APress - Plusbog.dk

Gain the fundamentals of Armv8-A 32-bit and 64-bit assembly language programming. This book emphasizes Armv8-A assembly language topics that are relevant to modern software development. It is designed to help you quickly understand Armv8-A assembly language programming and the computational resources of Arm''s SIMD platform. It also contains an abundance of source code that is structured to accelerate learning and comprehension of essential Armv8-A assembly language constructs and SIMD programming concepts. After reading this book, you will be able to code performance-optimized functions and algorithms using Armv8- A 32-bit and 64-bit assembly language. Modern Arm Assembly Language Programming accentuates the coding of Armv8-A 32-bit and 64-bit assembly language functions that are callable from C++. Multiple chapters are also devoted to Armv8-A SIMD assembly language programming. These chapters discuss how to code functions that are used in computationally intense applications such as machine learning, image processing, audio and video encoding, and computer graphics. The source code examples were developed using the GNU toolchain (g++, gas, and make) and tested on a Raspberry Pi 4 Model B running Raspbian (32-bit) and Ubuntu Server (64-bit). It is important to note that this is a book about Armv8-A assembly language programming and not the Raspberry Pi. What You Will Learn - - See essential details about the Armv8-A 32-bit and 64-bit architectures including data types, general purpose registers, floating-point and SIMD registers, and addressing modes - Use the Armv8-A 32-bit and 64-bit instruction sets to create performance-enhancing functions that are callable from C++ - Employ Armv8-A assembly language to efficiently manipulate common data types and programming constructs including integers, arrays, matrices, and user-defined structures - - Create assembly language functions that perform scalar floating-point arithmetic using the Armv8-A 32-bit and 64-bit instruction sets - - Harness the Armv8-A SIMD instruction sets to significantly accelerate the performance of computationally intense algorithms in applications such as machine learning, image processing, computer graphics, mathematics, and statistics. - - Apply leading-edge coding strategies and techniques to optimally exploit the Armv8-A 32-bit and 64-bit instruction sets for maximum possible performance Who This Book Is For Software developers who are creating programs for Armv8-A platforms and want to learn how to code performance-enhancing algorithms and functions using the Armv8-A 32-bit and 64-bit instruction sets. Readers should have previous high-level language programming experience and a basic understanding of C++.

A Beginner's Guide to SSD Firmware - Gopi Kuppan Thirumalai - Bog - APress - Plusbog.dk

Explore the concepts and techniques that are essential for designing, optimizing, and maintaining SSD (solid state drive) firmware. This book discusses the role of firmware in the functioning of SSDs and the importance of keeping firmware up to date to ensure optimal performance and security. The book starts with an introduction to SSD firmware and its role in SSDs. You will then learn basic NAND operations and common firmware features, followed by various design considerations and best practices for optimizing and maintaining SSD firmware. Moving ahead, you will learn some of the advanced features that are included in modern SSD firmware, such as wear leveling algorithms, garbage collection algorithms, error prevention and correction methods, and algorithms to reduce write amplification. User data flow and exception handling are discussed next, along with performance and debugging. To wrap things up, you will gain insight into possible future developments and innovations inSSD firmware. After reading this book, you will have a solid understanding of the key concepts and techniques that are crucial to designing, optimizing, and maintaining SSD firmware. What Will You LearnUnderstand the fundamentals of NAND flash memory, including its architecture, operation, and limitationsExplore the basics and evolution of firmware, specifically in the context of SSDsGrasp the basics of firmware, including its purpose, structure, and development processSurvey the specific features of SSD firmware, such as wear leveling, error correction, and garbage collectionUnderstand performance criteria for SSDsMaster the art of designing a fundamental SSD firmware, encompassing host interfaces and vital requirements Who Is This Book For:Engineers involved in designing and developing firmware.

Procedural Programming with PostgreSQL PL/pgSQL - Dinesh Kumar Chemuduru - Bog - APress - Plusbog.dk

Learn the fundamentals of PL/PGSQL, the programming language of PostgreSQL which is most robust Open Source Relational Database. This book provides practical insights into developing database code objects such as functions and procedures, with a focus on effectively handling strings, numbers, and arrays to achieve desired outcomes, and transaction management. The unique approach to handling Triggers in PostgreSQL ensures that both functionality and performance are maintained without compromise. You'll gain proficiency in writing inline/anonymous server-side code within the limitations, along with learning essential debugging and profiling techniques. Additionally, the book delves into statistical analysis of PL/PGSQL code and offers valuable knowledge on managing exceptions while writing code blocks. Finally, you'll explore the installation and configuration of extensions to enhance the performance of stored procedures and functions. What You'll LearnUnderstand the PL/PGSQL conceptsLearn to debug, profile, and optimize PL/PGSQL codeStudy linting PL/PGSQL codeReview transaction management within PL/PGSQL codeWork with developer friendly features like operators, casts, and aggregatorsWho Is This Book ForApp developers, database migration consultants, and database administrators.

Practical Apache Lucene 8 - Atri Sharma - Bog - APress - Plusbog.dk

Gain a thorough knowledge of Lucene''s capabilities and use it to develop your own search applications. This book explores the Java-based, high-performance text search engine library used to build search capabilities in your applications. Starting with the basics of Lucene and searching, you will learn about the types of queries used in it and also take a look at scoring models. Applying this basic knowledge, you will develop a hello world app using basic Lucene queries and explore functions like scoring and document level boosting. Along the way you will also uncover the concepts of partial searching and matching in Lucene and then learn how to integrate geographical information (geospatial data) in Lucene using spatial queries and n-dimensional indexing. This will prepare you to build a location-aware search engine with a representative data set that allows location constraints to be specified during a search. You''ll also develop a text classifier using Lucene and Apache Mahout, a popular machine learning framework. After a detailed review of performance bench-marking and common issues associated with it, you''ll learn some of the best practices of tuning the performance of your application. By the end of the book you''ll be able to build your first Lucene patch, where you will not only write your patch, but also test it and ensure it adheres to community coding standards. What You''ll Learn - Master the basics of Apache Lucene - Utilize different query types in Apache Lucene - Explore scoring and document level boosting - Integrate geospatial data into your application Who This Book Is For Developers wanting to learn the finer details of Apache Lucene by developing a series of projects with it.

Microsoft Orleans for Developers - Richard Astbury - Bog - APress - Plusbog.dk

Use a simple programming model and the .NET language of your choice to build large distributed systems. This book teaches you the Microsoft Orleans framework. Even well-versed professional software developers with expertise in C# (or another language) find themselves unequipped to meet the challenges of distributed systems as infrastructure moves to multi-core; multiple computers are being used for scale, redundancy, and cloud computing; and multi-region deployment is taking place. Orleans handles many of the concerns of distributed computing and cloud infrastructure, allowing you to concentrate on writing application logic. What You Will Learn - Know the key concepts for building distributed systems - Gain a background in the origin and evolution of Orleans, and why it is important for your projects - Dive into each of the features available in Orleans by building an example application - Develop troubleshooting skills for fixing bugs and running diagnostics - Achieve performance optimization and advanced configuration - Use the Orleans Dashboard to discern valuable insight in system performance Who This Book Is For Experienced C# developers who want to build a new high-scale application (perhaps for an IoT requirement) and are interested in learning the concepts and features available in Orleans

Hands-On Functional Test Automation - Chaminda Chandrasekara - Bog - APress - Plusbog.dk

Get started with functional testing of both web apps and Windows apps using different test frameworks. This book will take you on a deep dive into integrating functional automation testing with deployment pipelines. Hands-On Functional Test Automation contains step-by-step lessons that will give you an understanding of how to do functional test automation using Selenium with C# and Python. Also, you will learn how to enhance your test automation development with third-party frameworks. You will configure test clients, run functional tests through Azure DevOps release management, and carry out performance and load-testing to gain a good understanding of how to do cloud-based load testing. Each lesson comprises an introduction to the related concepts to help you understand how things work. This will broaden your knowledge so you can implement test automation in the correct way. At the end of each lesson alternative options and other enhancement possibilities are discussed to allow you to do further exploration. You will: · Implement functional test automation of Windows and web applications · Use Visual Studio for load and performance testing · Configure and run cloud-based load testing · Integrate testing with deployment pipelines

Optimizing Data-to-Learning-to-Action - Steven Flinn - Bog - APress - Plusbog.dk

Apply a powerful new approach and method that ensures continuous performance improvement for your business. You will learn how to determine and value the people, process, and technology-based solutions that will optimize your organization''s data-to-learning-to-action processes. This book describes in detail how to holistically optimize the chain of activities that span from data to learning to decisions to actions, an imperative for achieving outstanding performance in today''s business environment. Adapting and integrating insights from decision science, constraint theory, and process improvement, the book provides a method that is clear, effective, and can be applied to nearly every business function and sector. You will learn how to systematically work backwards from decisions to data, estimate the flow of value along the chain, and identify the inevitable value bottlenecks. And, importantly, you will learn techniques for quantifying the value that can be attained by successfully addressing the bottlenecks, providing the credible support needed to make the right level of investments at the right place and at just the right time. In today''s dynamic environment, with its never-ending stream of new, disruptive technologies that executives must consider (e.g., cloud computing, Internet of Things, AI/machine learning, business intelligence, enterprise social, etc., along with the associated big data generated), author Steven Flinn provides the comprehensive approach that is needed for making effective decisions about these technologies, underpinned by credibly quantified value. What You''ll Learn - Understand data-to-learning-to-action processes and their fundamental elements - Discover the highest leverage data-to-learning-to-action processes in your organization - Identify the key decisions that are associated with a data-to-learning-to-action process - Know why it''s NOT all about data, but it IS all about decisions and learning - Determine the value upside of enhanced learning that can improve decisions - Work backwards from the decisions to determine the value constraints in data-to-learning-to-action processes - Evaluate people, process, and technology-based solution options to address the constraints - Quantify the expected value of each of the solution options and prioritize accordingly - Implement, measure, and continuously improve by addressing the next constraints on value Who This Book Is For Business executives and managers seeking the next level of organizational performance, knowledge workers who want to maximize their impact, technology managers and practitioners who require a more effective means to prioritize technology options and deployments, technology providers who need a way to credibly quantify the value of their offerings, and consultants who are ready to build practices around the next big business performance paradigm