The most important characteristic of microprocessor systems is performance. The performance of a microprocessor linearly depends on three characteristics - its frequency, the average frequency for executing instructions and the number of instructions in a dedicated area of ​ ​ the program. In turn, these characteristics are determined by manufacturing technology, microprocessor architecture, instruction set and compilation technology. This book discusses the challenges of improving these characteristics, as well as methods and techniques for designing high-performance computing systems.