The second edition of "Performance Analysis and Tuning on Modern CPUs".
This book teaches you how to implement low-level optimizations for modern CPUs using advanced methods and tools. After reading this book you will be able to root cause performance regressions and find optimization opportunities in your code.
The second edition has been updated with comprehensive case studies and hands-on exercises. Also, it expands in covering AMD and ARM-based architectures.
Buy a paper/Kindle version on Amazon.