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Q. Suppose an operating system maps user-level threads to the kernel utilizing the many-to-many model where the mapping is done through the use of LWPs. In addition the system allows program developers to create real-time threads. Is it essential to bind a real-time thread to an LWP?
Answer: Yes or else a user thread may have to compete for an available LWP prior to being actually scheduled. Through binding the user thread to an LWP there is no latency while waiting for an available LWP the real-time user thread can be scheduled immediately.
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1. On every access, mark the page with a timestamp. Whenever we need to evict a page, we search through memory for the oldest page, the least-recently used page. But we need memory
MDEFINE CRITICAL SECTION
Write about directory structure?
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There is a process bloacked by a semaphore and no other process in the ready queue, can the blocked process get back to the ready queue without the semsignal() function?
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