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The optimal replacement policy, called OPT, is to evict the page which will be accessed farthest into the future. Since we can't predict the future precisely, we can't implement OPT in any real system. We can, however, run OPT on a saved trace of memory accesses, to measure how our real algorithm compares with OPT for a given trace.
Linked list allocation: At this time the blocks are stored using linked lists. The block size require not be the same. Thus internal fragmentation is avoided. Consider
Define throughput? Throughput in CPU scheduling is the number of processes that are completed per unit time. For long processes, this rate might be one process per hour; for sh
my Operating System is windows trust but when the windows start say its windows xp. help pleaes
As we have discussed, page tables map virtual page addresses to physical page addresses. One of the advantages of using virtual addresses is that we can achieve complete separation
how response times are reduced by allowing time sharing on top of multiprogramming
WHAT IS OPERATING SYSTEM ?ENLIST AND EXPLAIN BASIC SERVICES PROVIDE BY OS
Discuss the high barriers to entry in the market for PL operating systems
why some companies do not pay sufficient attention to staff induction
Define properties of Distributed operating system Distributed:- This system distributes computation among several physical processors. The processors do not share memory or a
what is dual mode operation
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