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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.
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Ask question #Minimuexplain the programable clock modes in a computer system m 100 words accepted#
How the Nested Macro calls are expanded LIFO (Last in First out)
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