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FIFO page replacement
This is the easiest page replacement algorithm. At this juncture the 1st page entering is the 1st to leave that is the oldest page leaves. To execute this we use a queue and the page at the head of the queue is the one being removed. The new page is put in at the tail of the queue. The disadvantage is that its performance isn't always good.
Example, Consider a three frame memory and if the sequence in which pages come into the memory is 1,2,3,4,1 then 1,2,3 are entered into the memory in order. While the page 4 is required then 1 is removed as well as the new page 4 is inserted at the tail end with the head being 2. Now if 1 comes then 2 is detached as it is the new head.
Define UnixWare UnixWare manages resources at the process level. Each resource allocated to the application is actually allocated to the process representing the application. C
How is it different from the unbounded buffer algorithm ? Explain.
server configure
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Suppose your process starts up, and allocates some memory with malloc(). The allocator will then give part of a memory page to your process. The OS then updates the corresponding p
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We will brie?y introduce paging to ?nish off this lecture. When a process is loaded, not all of the pages are immediately loaded, since it's possible that they will not all be need
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Parent and Child process communicate in unix A child and parent can interact through any of the normal inter-process communication schemes (pipes, message queues, sockets, s
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