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The swapper works on the biggest scheduling priority. Initially it will look for any sleeping process, if not get then it will see for the ready-to-run process for swapping. But the major need for the swapper to work the ready-to-run process must be core-resident for at least 2 seconds before going out. And for swapping in the process must have been resided in the swap machine for at least 2 seconds. If the need is not satisfied then the swapper will go into the wait state on that event and it is activated once in a second by the Kernel.
Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.
The idea of reference counting is to maintain, for every object, the total number of references to that object, i.e. the number of "incoming" pointers. Whenever the number of refer
Problem 1. What is kernel? What are the main components of a kernel? Defining Kernel Explaining Main components of Kernel 2. What is mutual exclusion? What are i
What are over lays? If a large process enters which is huge than the available memory we are able to use overlays. In this we can divide process into pieces .which is recognize
How are file sharing and protection implemented? To implement file protection and sharing, the system ought to maintain more file and directory attributes than are needed on a
Tree structured directories: This is the main common directory structure. The tree has a root directory as well as every file in the system has a unique path name. A directory
What do you understand by “line balancing”? What happens if balance doesn’t exist?
In this exercise we are going to use pthread()to simulate the dynamics between a warehouse, factory and retail. The factory produces product by using parts supplied by the warehou
Q. Consider a calculating environment where a process is given the privilege of accessing object only n times. Suggest a scheme for implementing this policy. Answer: Add an i
how copy on write on pages when many process works at a same time?
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