book packaging design

like user spaceThe memory in the kernel is not paged. Difficult to perform floating-point arithmetic during kernel programming The kernel gives each process only a small fixed-length stack Because the kernel supports asynchronous interrupts, preemption, and SMP, you must always be aware of synchronization and concurrencySMP: Symmetric multi-processing system. Common ways to solve competition: spin locks and semaphores. To consider the importance of portabilitysuch as keeping the

_ Get _ priority _ Max () returns the maximum and minimum precedence for a given scheduling policy 2. System calls related to processor bindings Linux Scheduler provides mandatory processor binding mechanism In a CPUs _ allowed bitmask in a task _ struct Sched_setaffinity () sets a bitmask of different combinations of one or several bits Sched _ Getaffinity () returns the current cpus_ allowed bit mask 3. Discard Processor TimeSched_yield () lets the process expli

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