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In the mean while the fork() system call the Kernel creates a copy of the parent process's address space and adds it to the child process. But the vfork() system call do not creates any copy of the parent's address space, so it is much faster than the fork() system call. The child process as a answer of the vfork() system call runs exec() system call. The child process from vfork() machine system call runs in the parent's address space which stop the parent process until the child process exits.
Q. Provide two programming instances in which multithreading provides better performance than a single-threaded solution. Answer: (1) A Web server that services every request
Q. Polling for an I/O completion is able to waste a large number of CPU cycles if the processor iterates a busy-waiting loop several times before the I/O completes. However if the
The field that consists of a segment index or an internal index is known as Target datum is field that consists of a segment index or an internal index.
difference between soft link and hard links
___paging fecthces a page only when needed
operation policies
idle thread The special thread a dispatcher will run when no ready thread is found. The primary purpose of the idle process and its threads is to remove what would otherwise b
In a multiprogramming and time sharing environment several users share the system simultaneously .what are two such problems?
operating systems and its types together with its design issues and their examples.
Question: (a) Explain the similarities and differences between two different threads running in the same process and two independent processes. When would you want to use two t
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