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Summary
Linux Performance Engineering: Optimising Linux from the Kernel to the Cloud is a practical, real-world guide to understanding, analysing, and improving the performance of Linux systems at every layer of the operating system.
Whether you are a Linux administrator, systems engineer, DevOps professional, Site Reliability Engineer (SRE), cloud architect, cybersecurity specialist, or an IT student eager to deepen your knowledge, this book provides the technical understanding and hands-on techniques needed to build faster, more efficient, and more reliable Linux environments.
Rather than presenting a collection of isolated tuning tips, this book takes readers on a structured journey through the Linux operating system. Beginning with the fundamentals of CPU scheduling, memory management, and kernel behaviour, it progresses into advanced topics such as storage optimisation, filesystems, NVMe tuning, network performance, container optimisation, Kubernetes, virtualisation, and custom kernel compilation.
The book then moves beyond configuration into performance analysis, introducing professional tools including perf, eBPF, and SystemTap to help readers identify bottlenecks with confidence and precision. Through practical examples and real-world case studies, readers learn how experienced Linux performance engineers approach troubleshooting—measuring first, understanding workloads, and applying targeted improvements based on evidence rather than guesswork.
Inside this book you will learn how to:

• Understand Linux performance from the kernel to user space.
• Optimise CPU scheduling, memory management, and NUMA architectures.
• Improve storage performance using modern filesystems, I/O schedulers, and NVMe technologies.
• Tune Linux networking, TCP/IP stacks, NIC drivers, and kernel parameters.
• Build and optimise custom Linux kernels.
• Maximise the performance of Docker containers, Kubernetes clusters, and KVM virtual machines.
• Profile applications using perf and perform advanced tracing with eBPF and SystemTap.
• Diagnose complex production performance problems using structured methodologies.
• Optimise Linux for enterprise databases, high-performance web servers, cloud infrastructure, and large-scale production environments.
• Develop the mindset and investigative approach used by professional Linux performance engineers.

More than a technical manual, this book encourages readers to think like engineers. It demonstrates that exceptional performance is rarely achieved through a single configuration change or hardware upgrade, but through careful observation, methodical investigation, continuous measurement, and a deep understanding of how Linux works internally.
Whether you are responsible for a single server or thousands of systems across cloud and enterprise environments, Linux Performance Engineering provides the knowledge, practical techniques, and engineering mindset needed to unlock the full potential of the Linux operating system.
Because the fastest Linux systems are not built by chance—they are built by engineers who understand why they are fast.

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