1.4. Processes, Threads, and Scheduling
The Solaris kernel is multithreaded; that is, it is implemented with multiple threads of execution to allow concurrency across multiple processors. This architecture is a major departure from the traditional UNIX scheduling model. In Solaris, threads in the kernel, or kernel threads, are the fundamental unit that is scheduled and dispatched onto processors. Threads allow multiple streams of execution within a single virtual memory environment; consequently, switching execution between threads is inexpensive because no virtual memory context switch is required.
Threads are used for kernel-related tasks, for process execution, and for interrupt handling. Within the kernel, multiple threads of execution share ...
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