Systems performance analysis and tuning lead to a better end-user experience and lower costs, especially for cloud computing environments that charge by the OS instance. Systems Performance, 2nd Edition covers concepts, strategy, tools, and tuning for operating systems and applications, using Linux-based operating systems as the primary example.World-renowned systems performance expert Brendan Gregg summarizes relevant operating system, hardware, and application theory to quickly get professionals up to speed even if they’ve never analyzed performance before, and to refresh and update advanced readers’ knowledge. Gregg illuminates the latest tools and techniques, including extended BPF, showing how to get the most out of your systems in cloud, web, and large-scale enterprise environments. He covers these and other key topics:*Hardware, kernel, and application internals, and how they perform*Methodologies for rapid performance analysis of complex systemsOptimizing CPU, memory, file system, disk, and networking usage*Sophisticated profiling and tracing with perf, Ftrace, and BPF (BCC and bpftrace)*Performance challenges associated with cloud computing hypervisors*Benchmarking more effectivelyFully updated for current Linux operating systems and environments, Systems Performance, 2nd Edition addresses issues that apply to any computer system. The book will be a go-to reference for many years to come and recommended reading at many tech companies, like its predecessor first edition. Read more

Write optimized queries. This book helps you write queries that perform fast and deliver results on time. You will learn that query optimization is not a dark art practiced by a small, secretive cabal of sorcerers. Any motivated professional can learn to write efficient queries from the get-go and capably optimize existing queries. You will learn to look at the process of writing a query from the database engine’s point of view, and know how to think like the database optimizer.The book begins with a discussion of what a performant system is and progresses to measuring performance and setting performance goals. It introduces different classes of queries and optimization techniques suitable to each, such as the use of indexes and specific join algorithms. You will learn to read and understand query execution plans along with techniques for influencing those plans for better performance. The book also covers advanced topics such as the use of functions and procedures, dynamic SQL, and generated queries. All of these techniques are then used together to produce performant applications, avoiding the pitfalls of object-relational mappers.This second edition includes new examples using Postgres 15 and the newest version of the PostgresAir database. It includes additional details and clarifications about advanced topics, and covers configuration parameters in greater depth. Finally, it makes use of advancements in NORM, using automatically generated functions. What You Will LearnIdentify optimization goals in OLTP and OLAP systemsRead and understand PostgreSQL execution plansDistinguish between short queries and long queriesChoose the right optimization technique for each query typeIdentify indexes that will improve query performanceOptimize full table scansAvoid the pitfalls of object-relational mapping systemsOptimize the entire application rather than just database queriesWho This Book Is ForIT professionals working in PostgreSQL who want to develop performant and scalable applications, anyone whose job title contains the words “database developer” or “database administrator" or who is a backend developer charged with programming database calls, and system architects involved in the overall design of application systems running against a PostgreSQL database Read more

Mastering ARM hardware architecture opens a world of programming for nearly all phones and tablets including the iPhone/iPad and most Android phones. It’s also the heart of many single board computers like the Raspberry Pi. Gain the skills required to dive into the fundamentals of the ARM hardware architecture with this book and start your own projects while you develop a working knowledge of assembly language for the ARM 64-bit processor.You'll review assembly language programming for the ARM Processor in 64-bit mode and write programs for a number of single board computers, including the Nvidia Jetson Nano and the Raspberry Pi (running 64-bit Linux). The book also discusses how to target assembly language programs for Apple iPhones and iPads along with 64-Bit ARM based Android phones and tablets. It covers all the tools you require, the basics of the ARM hardware architecture, all the groups of ARM 64-Bit Assembly instructions, and how data is stored in the computer’s memory. In addition, interface apps to hardware such as the Raspberry Pi’s GPIO ports. The book covers code optimization, as well as how to inter-operate with C and Python code. Readers will develop enough background to use the official ARM reference documentation for their own projects.With Programming with 64-Bit ARM Assembly Language as your guide you’ll study how to read, reverse engineer and hack machine code, then be able to apply these new skills to study code examples and take control of both your ARM devices’ hardware and software. What You'll LearnMake operating system calls from assembly language and include other software libraries in your projectsInterface apps to hardware devices such as the Raspberry Pi GPIO portsReverse engineer and hack codeUse the official ARM reference documentation for your own projectsWho This Book Is ForSoftware developers who have already learned to program in a higher-level language like Python, Java, C#, or even C and now wish to learn Assembly programming. Read more

Use BPF Tools to Optimize Performance, Fix Problems, and See Inside Running Systems BPF-based performance tools give you unprecedented visibility into systems and applications, so you can optimize performance, troubleshoot code, strengthen security, and reduce costs. BPF Performance Tools: Linux System and Application Observability is the definitive guide to using these tools for observability. Pioneering BPF expert Brendan Gregg presents more than 150 ready-to-run analysis and debugging tools, expert guidance on applying them, and step-by-step tutorials on developing your own. You’ll learn how to analyze CPUs, memory, disks, file systems, networking, languages, applications, containers, hypervisors, security, and the kernel. Gregg guides you from basic to advanced tools, helping you generate deeper, more useful technical insights for improving virtually any Linux system or application. • Learn essential tracing concepts and both core BPF front-ends: BCC and bpftrace • Master 150+ powerful BPF tools, including dozens created just for this book, and available for download • Discover practical strategies, tips, and tricks for more effective analysis • Analyze compiled, JIT-compiled, and interpreted code in multiple languages: C, Java, bash shell, and more • Generate metrics, stack traces, and custom latency histograms • Use complementary tools when they offer quick, easy wins • Explore advanced tools built on BPF: PCP and Grafana for remote monitoring, eBPF Exporter, and kubectl-trace for tracing Kubernetes • Foreword by Alexei Starovoitov, creator of the new BPF BPF Performance Tools will be an indispensable resource for all administrators, developers, support staff, and other IT professionals working with any recent Linux distribution in any enterprise or cloud environment. Read more

Build stronger support system to power your enterprise applicationsKey Features● Figure out the most important elements of backend and application development.● Know how to construct large-scale, distributed applications using industry best practices and software architecture principles.● Provides a career map for becoming a successful backend developer, including advice on skills and tools.DescriptionIn today's world, becoming an experienced backend developer is a difficult job that requires a lot of work. There are an excessive number of stacks and technologies to master, and new ones often gain popularity. Nonetheless, they share the same fundamental concepts: data storage, security, performance, testing, etc. This book aims to teach and train you to become a successful backend developer with a solid skill set in developing and implementing the real engine of a successful enterprise application. Implementation topics like setting up a web server, designing and developing APIs, creating and running automated tests, and working with various types of databases are all addressed in detail. The book prepares developers to maintain the safety and security of their applications through the use of procedures that avoid application and data breaches. While you learn about every part of backend development, the book teaches you how to deal with errors and find and fix problems. By the end of the book, you will have a firm grasp on the fundamental principles that underpin backend programming, including application architectures, design patterns, essential development activities, and help for debugging.What you will learn● Gain knowledge to build the momentum of a solid backend developer and choose areas to investigate in depth.● Learn to integrate backend development as the top tech businesses do.● Comprehend the distinction between SQL and NoSQL, containers, APIs, and web servers.● Design large-scale systems step-by-step.● Grow from junior backend developer to senior developer, including the required skills and responsibilities.Who this book is forThis book would greatly benefit readers who are new to backend operations for web and mobile apps, such as junior software developers, web developers, application developers, and frontend and backend coders. Basic programming skills will help you practice this book's learnings.Table of Contents1. Building Multi-User Apps2. The Client-Server Architecture3. Designing APIs4. End-to-end Data Management5. Automating Application Testing6. Securing Applications7. Handling Errors8. Adopting Frameworks9. Deploying Applications10. Creating High-performance Apps11. Designing a System12. Bootstrap Your Career Path Read more

Are you ready to unlock the full potential of your Mac Mini M4? Whether you’re a first-time user or an experienced Mac enthusiast, this comprehensive guide is your essential companion for setting up, customizing, and mastering your Mac Mini M4 for work, creativity, and entertainment.The Mac Mini M4 is more than just a sleek, compact desktop—it's a powerhouse that can transform the way you work, play, and create. But getting the most out of it requires more than just turning it on. This book takes you step by step through every aspect of the Mac Mini M4, from the initial setup to advanced features that will elevate your experience.Inside this guide, you’ll discover:A Seamless Setup Experience: Get your Mac Mini M4 up and running effortlessly with easy-to-follow instructions on connecting your power, display, mouse, keyboard, and Wi-Fi.Tailored Customization: Learn how to personalize every aspect of your Mac Mini M4 to suit your unique needs, from system preferences to display settings.Productivity Boosters: Master window management, multitasking features like Stage Manager, and how to organize your workspace for maximum efficiency.Creative Power: Harness the power of the M4 chip for 3D rendering, video editing, music production, and graphic design. Optimize your system for high-performance tasks.Entertainment Ready: Set up your Mac Mini M4 for gaming, streaming, and entertainment. Discover the best apps and tools to make your device a hub for all your media needs.Advanced Features: Unlock the full potential of your Mac Mini M4 with Siri integration, privacy settings, security features, and tips to keep your device in top condition.But that’s not all. With this book, you’re not just getting technical knowledge. You’ll gain access to exclusive insights, time-saving tips, and expert tricks to ensure your Mac Mini M4 stays at peak performance, helping you achieve more in less time.Don’t let your Mac Mini M4 be just another device sitting on your desk. Unlock its true power and transform how you work, create, and play. Grab your copy now and dive into the world of Mac Mini M4—where efficiency, creativity, and entertainment meet.Your journey to mastering the Mac Mini M4 begins here! Read more

What if you could master UX design, a skill that is becoming more and more demanded from more and more companies?Imagine how your work and life could change, and how much fun you'll have while enjoying the journey.“UX designer” is quickly becoming one of the most sought-after job titles in tech. Being a UX designer is rewarding, challenging, lucrative and interesting.A UX designer requires an impressive mix of creative, technical, and social skills. You need to be as comfortable with Adobe and Sketch as you are with interacting with a live group of users and analyzing their interactions with your mockups, prototypes, and wireframes.It’s certainly not an easy job, but if you love the work you won’t care that it’s challenging.This book provides you EVERY information to master UX design, the few things you need to start are:• Passion — UX design should feel not just like a hobby or even a career path, but a calling. You should be genuinely fascinated by the subject• Empathy — To design great products you need to be able to feel the users’ pain and frustration. You need to be able to put yourself in their shoes to understand why something isn’t working for them, even though for you it may seem fine.• Self-Starting – You are going to need to train yourself in various areas and learn to work on your own for a while to figure things out and build your portfolio• Genuine Interest in Technology – This almost goes without saying, but just in case…you do need to have a love of technology and, in particular, the way humans interact with technologyBut let’s get deep into the chapters of this guide:• Understanding you are not the user, involving them helps you to master your products• The 27 UX design fundamentals to follow and check in every single project• The design process (form sketching to design specifications)• Lean UX vs Agile UX• The 5 visual design principles• Behavioral UX data• The 4 UX optimization steps...and much more!EVERY object you ever purchased was guided by user experience. Companies are now realizing that and looking for professionals that could help them.Change your career forever and become a user experience designer purchasing and studying this practical and complete guide! Scroll up and add it to cart now! Read more

🚀 Ready to Code Like a Pro?Most developers build apps. You’re here to build the future.Whether you're stuck in the basics or ready to push your limits, Android App Development for Advanced Developers gives you the tools, techniques, and expert strategies to go beyond CRUD apps and start crafting scalable, AI-powered, performance-optimized mobile experiences that stand out on Google Play.Written by seasoned developer Wilson Hayes, this advanced guide goes far beyond simple tutorials. You’ll dive deep into Jetpack Compose, MVVM architecture, real-world Firebase integrations, and AI-enhanced features used by top apps in the world.🔍 What You’ll Master Inside:Jetpack Compose UI Design – Create fluid, responsive, and animated user interfaces the modern wayMVVM & Clean Architecture – Build modular, maintainable codebases that scaleAI & Machine Learning in Android – Use TensorFlow Lite, chatbots, OCR, and predictive contentFirebase Integration – Real-time syncing, push notifications, remote config, and user authAdvanced Networking – REST, GraphQL, WebSockets, OAuth, and JWT securityTesting & Automation – Unit/UI testing, CI/CD with GitHub Actions, Firebase Test LabSecurity – Obfuscation, biometric login, key encryption, root detectionApp Store Success – Play Store publishing, ASO tips, beta testing, and monetization modelsWho This Book Is For:Intermediate to pro Android developersFreelancers, indie devs, and startup teamsComputer science students aiming to specializeAnyone looking to turn real apps into real revenueEach chapter includes code walkthroughs, hands-on mini challenges, real case studies (like TikTok & Instagram), and actionable checklists you can implement immediately.💡 Why You'll Love ItThis isn’t just a book. It’s a launchpad.By the final chapter, you'll be confidently building secure, high-performance Android apps that are Play Store–ready, monetized, and powered by AI.🎯 Click “Buy Now” and build the kind of apps that employers, clients, and users remember. Read more

Unlock the logic, structure, and versatility behind one of the most powerful tools in modern software development.Whether you're stepping into coding for the first time or sharpening your existing skills, this all-in-one resource walks you through everything you need to build robust applications, develop clean logic, and write efficient, error-free scripts.This book doesn’t just teach you how to write code—it helps you understand why great code works the way it does.Inside, you’ll explore:Foundational concepts like variables, loops, arrays, and conditionals made simpleObject-oriented principles that bring clarity and structure to your projectsHow to debug, troubleshoot, and refactor like a proReal-world examples to help solidify your learning with hands-on practiceEssential tools and workflows used by top-level engineersStep-by-step projects that build confidence and real skillsPerformance tips and design patterns to write clean, maintainable codeWhether you're pursuing a new career in tech or want to level up your digital skillset, this book helps you unlock a solid, real-world foundation in software development.Ideal for students, coders, IT professionals, and curious minds who want a complete roadmap to understanding one of today’s most essential technologies.Get ready to code with confidence. Read more

How can you bring out MySQLâ??s full power? With High Performance MySQL, youâ??ll learn advanced techniques for everything from designing schemas, indexes, and queries to tuning your MySQL server, operating system, and hardware to their fullest potential. This guide also teaches you safe and practical ways to scale applications through replication, load balancing, high availability, and failover. Updated to reflect recent advances in MySQL and InnoDB performance, features, and tools, this third edition not only offers specific examples of how MySQL works, it also teaches you why this system works as it does, with illustrative stories and case studies that demonstrate MySQLâ??s principles in action. With this book, youâ??ll learn how to think in MySQL. Learn the effects of new features in MySQL 5.5, including stored procedures, partitioned databases, triggers, and views Implement improvements in replication, high availability, and clustering Achieve high performance when running MySQL in the cloud Optimize advanced querying features, such as full-text searches Take advantage of modern multi-core CPUs and solid-state disks Explore backup and recovery strategiesâ??including new tools for hot online backups Read more

Modern software is massively inefficient. Modern CPUs typically run poorly optimized code, which consumes more power than it could have consumed and contributes to carbon emissions and other environmental issues. Inefficient software cuts companies' margins and decreases market evaluation. For many years performance engineering was a nerdy niche, but now it's becoming mainstream as software vendors realize the impact that their poorly optimized software has on their bottom lines. Performance is the killer feature.In Performance Analysis and Tuning on Modern CPUs, performance expert Denis Bakhvalov teaches you how to implement low-level optimizations using advanced methods and tools. After reading this book you will be able to root cause performance regressions and find optimization opportunities in your application. The second edition has been updated with comprehensive case studies and hands-on exercises.This book will be valuable to experienced software professionals, including application, library, compiler, and OS developers, as well as advanced students. Skills that you'll learn from this book will be directly applicable in your daily work and move your career forward. Read more

Push Rust to its limits with Advanced Rust, covering:🔹 Memory Layout & Optimization – Squeeze out every drop of performance.🔹 Procedural Macros – Metaprogramming like a wizard.🔹 Fearless Unsafe Rust – When and how to bend the rules.🔹 Benchmarking & Profiling – Make your code fly.For those ready to think like a compiler. Read more

Elevate your AI system performance capabilities with this definitive guide to unlocking peak efficiency across every layer of your AI infrastructure. In today's era of ever-growing generative models, AI Systems Performance Engineering equips professionals with actionable strategies to co-optimize hardware, software, and algorithms for high-performance and cost-effective AI systems. Authored by Chris Fregly, a performance-focused engineering and product leader, this comprehensive resource transforms complex systems into streamlined, high-impact AI solutions.Inside, you'll discover step-by-step methodologies for fine-tuning GPU CUDA kernels, PyTorch-based algorithms, and multinode training and inference systems. You'll also master the art of scaling GPU clusters for high performance, distributed model training jobs, and inference servers.Codesign and optimize hardware, software, and algorithms to achieve maximum throughput and cost savingsImplement cutting-edge inference strategies that reduce latency and boost throughput in real-world settingsUtilize industry-leading scalability tools and frameworksProfile, diagnose, and eliminate performance bottlenecks across complex AI pipelinesIntegrate full stack optimization techniques for robust, reliable AI system performanceWhether you're an engineer, researcher, or developer, AI Systems Performance Engineering offers a holistic roadmap for building resilient, scalable, and cost-effective AI systems that excel in both training and inference. Read more

Dive Into Algorithms is a broad introduction to algorithms using the Python Programming Language.Dive Into Algorithms is a wide-ranging, Pythonic tour of many of the world's most interesting algorithms. With little more than a bit of computer programming experience and basic high-school math, you'll explore standard computer science algorithms for searching, sorting, and optimization; human-based algorithms that help us determine how to catch a baseball or eat the right amount at a buffet; and advanced algorithms like ones used in machine learning and artificial intelligence. You'll even explore how ancient Egyptians and Russian peasants used algorithms to multiply numbers, how the ancient Greeks used them to find greatest common divisors, and how Japanese scholars in the age of samurai designed algorithms capable of generating magic squares.You'll explore algorithms that are useful in pure mathematics and learn how mathematical ideas can improve algorithms. You'll learn about an algorithm for generating continued fractions, one for quick calculations of square roots, and another for generating seemingly random sets of numbers.You'll also learn how to:Use algorithms to debug code, maximize revenue, schedule tasks, and create decision treesMeasure the efficiency and speed of algorithmsGenerate Voronoi diagrams for use in various geometric applicationsUse algorithms to build a simple chatbot, win at board games, or solve sudoku puzzlesWrite code for gradient ascent and descent algorithms that can find the maxima and minima of functionsUse simulated annealing to perform global optimizationBuild a decision tree to predict happiness based on a person's characteristicsOnce you've finished this book you'll understand how to code and implement important algorithms as well as how to measure and optimize their performance, all while learning the nitty-gritty details of today's most powerful algorithms. Read more

Are you ready to break free from the chaos of inconsistent development environments and complex package management? "Nix for Developers" is your ultimate guide to mastering NixOS and the Nix Package Manager, two powerful tools that will revolutionize the way you manage your systems and environments.This step-by-step guide provides a comprehensive walkthrough of NixOS and Nix, showing you exactly how to configure, manage, and scale your environments with ease and precision. Whether you're a seasoned developer or a DevOps newbie, you'll discover how to create reproducible systems, ensure dependency integrity, and manage your infrastructure efficiently.Key Benefits:Achieve consistent, reproducible environments across development, testing, and production.Simplify your workflow with automated configuration management that adapts to your specific needs.Maximize scalability and flexibility, whether you're deploying containers, servers, or cloud-based applications.The unique power of NixOS lies in its declarative approach to configuration management—allowing you to control every aspect of your system's environment, ensuring it's exactly how you want it, every time. Unlike traditional tools, NixOS and Nix Package Manager empower you to manage complex setups effortlessly, making it a must-have for developers and system administrators looking to improve reliability, security, and automation.Ready to transform the way you work with NixOS? Get your copy of "Nix for Developers" now and start mastering the future of system configuration. Read more

I’m fortunate to have entered the computer software industry early, riding multiple waves of technology into a 25+ year career as a Data Engineer.Throughout my career, I’ve worked at several Fortune 100 companies across industries like telecommunications, finance, utilities, and professional services.I began coding the year before Y2K, so you can probably guess my age.I was part of a development team that once released a software update causing all debit and ATM transactions to be declined for three hours at a major bank. Imagine being on a 3 a.m. call, troubleshooting code while several Directors, who reported directly to the CEO, were shouting, “You have 10 minutes to figure this out, or I’m firing all of you!” It may sound harsh, but the company was losing millions of dollars every hour, along with customers and reputation. The issue was found in vendor code so a quick patch from the vedor fixed it and grandma could go back to informercial shopping. Suffice to say, I know what it’s like to be under pressure.I’ve also demoed software to a potential client who gave our team little more than an hour of courtesy. On the line? A potential $5.5 million change order. My code, my presentation, and the internet connection all had to be flawless. Needless to say, I charmed them, and we closed the deal.I’ve worked with all types, volumes, and velocities of data—from streaming data that arrived at a blistering 4,000 transactions per second to 8-petabyte deep storage archives that needed to be migrated to the cloud.I’ve interviewed, hired, and fired dozens of data engineers, so I know what matters on a resume, what to say (and what not to say) in an interview, and how to move from a junior to a senior data engineer in record time.'m simply sharing that I’m a seasoned professional you can trust and in this book you'll find answers and insights that can't be found in search engines. Read more

Offering a detailed practical look at PostgreSQL 16's new features, "PostgreSQL 16 Cookbook, Second Edition" equips database administrators and developers to take advantage of the most recent developments. This edition provides in-depth coverage of enhanced logical replication, which now includes the ability to replicate from standby servers. We provide detailed instructions for setting up these advanced replication configurations, allowing you to better distribute workloads and improve data availability. The optimization of concurrent bulk loading capabilities for faster data ingestion is another noteworthy addition. Another standout feature of our book are the practical solutions and examples for using the new JSON functions and operators to store, query, and manipulate JSON data in your applications.We walk you through the process of configuring refined user roles and permissions, ensuring effective access control in complex environments. Additionally, the book teaches new monitoring capabilities introduced with the pg_stat_io view, which provide insights into I/O operations to help optimize performance. The book goes on to implement performance enhancements such as SIMD acceleration for processing ASCII and JSON strings, as well as the new load balancing feature, load_balance_hosts, which distributes traffic efficiently among multiple servers. The goal of this book is to equip you with to successfully manage, optimize, and troubleshoot database environments.Key LearningsBoost data availability and workload distribution using advanced logical replication techniques.Apply the SIMD acceleration to expedite the processing of ASCII and JSON strings.Make use of improved SQL/JSON syntax to manage complicated JSON data operations.Enhance efficiency and decrease query times by optimizing query performance with parallel execution.Utilize pg_stat_io for troubleshooting and monitoring I/O operations.Utilize Rust libraries like pgx and rust-postgres for easy integration with PostgreSQL.Distribute workload among numerous PostgreSQL instances by configuring load_balance_hosts.Simplify user role configurations and security with refined privilege management.Utilize pgBackRest and Barman to implement strong backup strategies.Optimize database performance using concurrent bulk loading.Table of ContentPreparing PostgreSQL 16Performing Basic PostgreSQL OperationsPostgreSQL Cloud ProvisioningDatabase Migration to Cloud and PostgreSQLWAL, AutoVacuum & ArchiveLogPartitioning and Sharding StrategiesTroubleshooting Replication, Scalability & High AvailabilityBlob, JSON Query, CAST Operator & ConnectionsAuthentication, Audit & EncryptionImplementing Database Backup StrategiesPerform Database Recovery & Restoration Read more

Oracle Performance Survival GuideA Systematic Approach to Database OptimizationThe fast, complete, start-to-finish guide to optimizing Oracle performanceOracle Performance Survival Guide offers a structured, systematic, start-to-finish methodology for optimizing Oracle performance as efficiently as possible. Leading Oracle expert Guy Harrison shows how to maximize your tuning investment by focusing on causes rather than symptoms, and by quickly identifying the areas that deliver the greatest “bang for the buck.”Writing for DBAs and developers with all levels of experience, Harrison covers every area of Oracle performance management, from application design through SQL tuning, contention management through memory and physical IO management. He also presents up-to-the-minute guidance for optimizing the performance of the Oracle 11g Release 2. You’ll start by mastering Oracle structured performance tuning principles and tools, including techniques for tracing and monitoring Oracle execution. Harrison illuminates the interaction between applications and databases, guides you through choosing tuning tools, and introduces upfront design techniques that lead to higher-performance applications. He also presents a collection of downloadable scripts for reporting on all aspects of database performance. Coverage includes • “Tuning by layers,” the most effective, highest-value approach to Oracle performance optimization • Making the most of Oracle’s core tools for tracing, monitoring, and diagnosing performance • Highly efficient database logical and physical design, indexing, transaction design, and API use • SQL and PL/SQL tuning, including the use of parallel SQL techniques • Minimizing contention for locks, latches, shared memory, and other database resources • Optimizing memory and physical disk IO • Tuning Real Application Cluster (RAC) databasesguyharrison.netinformit.com/ph Read more

This is the first edition, the second edition of this book is available.We live in an increasingly data-centric world, where we generate enormous amounts of data each day. The growth of information exchange fuels the need for both faster software and faster hardware. Unfortunately, modern CPUs are not enjoying big improvements in single-core performance as they used to in the past decades.That's why performance tuning is becoming more important than it has been for the last 40 years. According to the popular paper "There’s plenty of room at the top" by Leiserson et al., SW tuning will be one of the key drivers for performance gains in the near future. We, as SW developers, must start optimizing the code of our applications.I started this book with a simple goal: educate software developers to better understand their applications' performance on modern hardware. I know how confusing this topic might be for a beginner or even for an experienced developer. I remember the days when I was starting with performance analysis. I was gazing at unfamiliar metrics trying to match the data that didn't match. And I was baffled. It took me years until it finally "clicked", and all pieces of the puzzle came together. At the time, the only good sources of information were software developer manuals, which are not what mainstream developers like to read. So I decided to write this book, which will hopefully make it easier for developers to learn performance analysis and tuning concepts.This book is a guide for optimizing the performance of applications that run on modern CPUs. It combines the knowledge of many experts from different industries, including engineers from Google, Facebook, leading HFT, and game development firms.The book is divided into 2 parts. The first part gives an introduction to performance analysis, including a brief overview of CPU microarchitecture, terminology, and metrics. It also explores different methods to analyze performance and HW monitoring features available on modern platforms. The second part shows how to discover optimization opportunities and what transformations can be done to improve the performance of a program. It provides a checklist of optimizations that can be applied to a user's application, such as loop optimizations, vectorization, function inlining, etc. It also discusses code transformations that help to eliminate issues on a CPU microarchitecture level, like cache misses, branch mispredictions, and others.This book is indispensable for software developers that work with performance-critical applications and do low-level optimizations. It also will be useful for any developer who wants to understand the performance of their application better and know how it can be diagnosed and improved.Readers are expected to have a minimal background in C/C++ programming languages to understand the book's examples. The author also expects familiarity with basic concepts of computer architecture and operating systems. The ability to read x86 assembly is desired but is not a strict requirement. Read more

With technological advancements, fast markets, and higher complexity of systems, software engineers tend to skip the uncomfortable topic of software efficiency. However, tactical, observability-driven performance optimizations are vital for every product to save money and ensure business success.With this book, any engineer can learn how to approach software efficiency effectively, professionally, and without stress. Author Bartłomiej Płotka provides the tools and knowledge required to make your systems faster and less resource-hungry. Efficient Go guides you in achieving better day-to-day efficiency using Go. In addition, most content is language-agnostic, allowing you to bring small but effective habits to your programming or product management cycles.This book shows you how to: Clarify and negotiate efficiency goalsOptimize efficiency on various levelsUse common resources like CPU and memory effectivelyAssess efficiency using observability signals like metrics, logging, tracing, and (continuous) profiling via open source projects like Prometheus, Jaeger, and ParcaApply tools like go test, pprof, benchstat, and k6 to create reliable micro and macro benchmarksEfficiently use Go and its features like slices, generics, goroutines, allocation semantics, garbage collection, and more! Read more