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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.
explain goals of system software
Ask question #Minimum 100 difference between bounded and unbounded buffer words accepted#
what is the meaning
What is a file path name? A list of the subdirectories, directories, and files we must traverse to reach a file from the root directory.
What is thrashing? It is a method in virtual memory schemes when the processor spends most of its time swapping pages, rather than implementing instructions. This is because o
are ''ASIC'' embeded systems
Determine the reasons for Poor response time Process busy or High I/O rates or High paging rates
Write a script that uses this idea to print output similar to the following: Files in this directory that match *~ : bash-scripts.html~ chimpanzee~ countdown~ countd
Q. Consider a calculating environment where a unique number is associated with each process and each object in the system. Suppose that we permit a process with number n to acce
what topic i choose for os research proposal
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