Performance Patterns

Abstract This collection of patterns revives some old wisdom of experienced programmers with Sidestep System Calls and explains tactics to improve the performance and predictability of multi-threaded applications with Locking Categories and Thread-local Memory-Pool. They are mined and applied in server applications that provide services for a large number of users and for users that are sensible to fast response times. Overview Today, many developers and software architects are shielded from the low-level consequences of their doings that they no longer can be aware of the performance issues. Several factors have created such a situation: • Low-level programming is "uncool", because often the abstractions provided by an operating system are too cumbersome to use efficiently. • Moore's law makes hardware faster and faster