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Latency de Pekka Enberg

Latency

Autor Pekka Enberg
en Limba Engleză Hardback – 20 noi 2025

Actualizarea majoră pe care o aduce Latency în peisajul literaturii tehnice este tranziția de la discuții abstracte despre performanță la implementări concrete, bazate pe experiența autorului Pekka Enberg în proiecte critice precum kernel-ul Linux și ScyllaDB. Remarcăm o abordare extrem de pragmatică: nu se limitează la a defini ce este latența, ci oferă cititorului instrumentele necesare pentru a construi un sistem de benchmark capabil să vizualizeze întârzierile dintre cauză și efect. Ne-a atras atenția structura axată pe inginerie aplicată. Autorul ghidează inginerii de backend prin mecanismele interne ale sistemelor de operare și ale rețelelor, explicând de ce codul se comportă diferit în medii distribuite. Dacă Understanding Software Dynamics de Richard Sites v-a oferit cadrul teoretic și fundamentele dinamicii software, această carte oferă instrumentele practice și strategiile specifice de optimizare prin colocare, partiționare și caching. Totodată, volumul explorează soluții ingenioase pentru situațiile limită: cum să „ascunzi” latența atunci când constrângerile fizice de infrastructură nu mai permit reducerea ei. Exemplele de cod sunt scrise în [Rust](language), un limbaj recunoscut pentru performanță și siguranță, ceea ce face ca textul să fie deosebit de relevant pentru proiectele moderne de înaltă disponibilitate. Stilul este tehnic și dens, eliminând superlativele inutile în favoarea unor metrici clare și a unor proiecte de tip hands-on care pot fi replicate în mediile de producție de către orice inginer software care stăpânește fundamentele sistemelor de backend.

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Specificații

ISBN-13: 9781633438088
ISBN-10: 1633438082
Pagini: 264
Dimensiuni: 189 x 235 x 16 mm
Greutate: 0.45 kg
Editura: Manning Publications

De ce să citești această carte

Recomandăm această carte inginerilor de backend care doresc să treacă de la optimizări intuitive la o metodologie riguroasă de control al performanței. Veți câștiga o înțelegere profundă a modului în care hardware-ul și rețeaua influențează viteza aplicației, învățând tehnici directe de reducere a latenței în Rust. Este o resursă esențială pentru cei care dezvoltă sisteme distribuite unde fiecare milisecundă contează.

Descriere

Practical techniques for delivering low latency software. Slow responses can kill good software. Whether it’s recovering microseconds lost while routing messages on a server or speeding up page loads that keep users waiting, finding and fixing latency can be a frustrating part of your work as a developer. This one-of-a-kind book shows you how to spot, understand, and respond to latency wherever it appears in your applications and infrastructure. In Latency you’ll learn: • What latency is—and what it is not • How to model and measure latency • Organizing your application data for low latency • Making your code run faster • Hiding latency when you can’t reduce it Put simply, latency is the delay between a cause and effect. In practice, too much latency can create problems throughout a software system, ranging from inaccurate calculations and timeouts to impatient users simply abandoning your applications. Latency issues can be challenging to avoid and troubleshoot. This book balances theory with practical implementations, turning academic research into useful techniques you can apply to your projects. About the book Latency shows you how to troubleshoot latency issues in existing systems, and how to create low latency systems from the ground up. You’ll discover how your code runs differently on distributed systems, databases, and operating systems, and understand the common latency-causing issues in each situation. Hands-on projects help you apply what you learn. You’ll write a latency benchmark harness to measure and visualize latency; and use colocation, partitioning, and caching to reduce latency in a REST API. Plus, tips, tricks, and author Pekka Enberg’s personal insights on latency ensure this book will remain a handy reference long after you’ve finished reading! About the reader For software engineers with a working knowledge of backends. Examples in Rust. About the author Pekka Enberg is a software professional with a background and experience in operating systems, databases, and distributed systems and a research interest in low-latency networked systems. In the past, Pekka has worked on the Linux kernel as a maintainer of the dynamic memory allocator subsystem and on ScyllaDB, an Apache Cassandra-compatible, distributed database focusing on low-latency and high throughput. Get a free eBook (PDF or ePub) from Manning as well as access to the online liveBook format (and its AI assistant that will answer your questions in any language) when you purchase the print book.

Descriere scurtă

Practical techniques for delivering low latency software.

From first principles to production-ready code, Latency teaches you how to make your software faster at every layer of the stack. You’ll learn what latency really is, how it differs from bandwidth, and why it matters for user experience. Then, guided by practical examples, you’ll apply Little’s Law, design lock-free algorithms, and architect caching systems that scale. You’ll discover how your code runs differently on distributed systems, databases, and operating systems, and understand the common latency-causing issues in each situation.

In Latency you’ll learn how to:
  • Define latency, distinguish it from bandwidth, and understand its impact on user experience
  • Model performance with Little’s Law and Amdahl’s Law, then measure and visualize delays
  • Optimize data access with colocation, replication, partitioning, and caching
  • Accelerate logic with algorithmic improvements, memory tuning, and lock-free concurrency
  • Minimize delays with asynchronous processing, predictive techniques, and speculative execution
Put simply, latency is the delay between a cause and effect. In practice, too much latency can create problems throughout a software system, ranging from inaccurate calculations and timeouts to impatient users simply abandoning your applications. Latency issues can be challenging to avoid and troubleshoot. This book balances theory with practical implementations, turning academic research into useful techniques you can apply to your projects.

About the technology

From lost microseconds routing server messages to page loads that keep users waiting, latency can kill good software. This one-of-a-kind book shows you how to spot, understand, and fix unwanted latency in your applications and infrastructure.

About the book

Latency: Reduce delay in software systems shows you how to troubleshoot latency in existing applications and create low latency systems from the ground up. In it, you’ll discover high-impact fixes for measuring latency and advanced optimizations in memory management, concurrency models, and predictive execution. The tips and tricks, hands-on projects, and personal insights make this book as enjoyable as it is practical.

What's inside
  • How to model and measure latency
  • Organizing application data for low latency
  • Accelerating your code
  • Hiding latency
About the reader

For software engineers with a working knowledge of backends. Examples in Rust.

About the author

Pekka Enberg has experience in operating systems, databases, and distributed systems, having worked on the Linux kernel and the Scylla and Turso databases.

Table of Contents

Part 1
1 Introduction
2 Modeling and measuring latency
Part 2
3 Colocation
4 Replication
5 Partitioning
6 Caching
Part 3
7 Eliminating work
8 Wait-free synchronization
9 Exploiting concurrency
Part 4
10 Asynchronous processing
11 Predictive techniques
A Further reading