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Solaris™ Internals: Core Kernel Components by Richard McDougall, Jim Mauro

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9.5. Kernel Processor Control and Processor Sets

Every operating system requires intimate knowledge of the hardware processors it supports and has low-level kernel code to manage things like processor state, trap and interrupt handling, clock tick processing, thread context switching, memory management, stack management, etc. The Solaris kernel extends the notion of processor control considerably beyond traditional implementations. The current model in the Solaris kernel was driven by several requirements of two goals:

  • Multiprocessor system efficiency. Sun leads the industry in building scalable multiprocessor server systems based on the Symmetric Memory Processor (SMP) architecture. This architecture is defined as some number of processors that ...

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