Hands-On System Programming with Go

Threads

Current OSes are built for modern architectures that have processors with more than one core per CPU, or use technologies, such as hyper-threading, that allow a single core to support more than one thread. Threads are parts of processes that can be managed by the OS scheduler, which can assign them to a specific core/CPU. Like processes, threads carry information about the application execution, but the size of such information is smaller than processes. This includes the current instruction in the program, a stack of the current execution, and the variables needed for it.

The OS is already responsible for the context switch between processes; it saves the older process information and loads the new process information. This is called ...