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Performance of demand paging
Demand paging can have an important effect on the performance of a computer system. As long as there are no page faults, the effective access time is equal to the memory access time. The memory access time is represented by ma, now ranges from 10 to 200 nanoseconds.
What is external fragmentation? As process are removed from and loaded to the memory free memory space is bracken into pieces .external fragmentation take place when enough mem
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
What is monolithic and its diagram
Linked list allocation using index The blocks don't have a fixed size. Pointers are utilized to point to the next block in a file. The pointers are set aside as a separate tabl
Discuss the risks of having a single root user
justify the role played by the operating system in managing the process to avoid deadlock
shell script that accepts two directory names as arguments and delete those file in the second directory that are identical to the file in the first
Two Level Directory This kind of structure overcomes the problems of assigning unique names to the files. Thus there need not be any confusion among users. In this kind of s
Some people write custom memory allocators to meet their speci?c needs. Although this is not needed for most of the applications, it is also not uncommon. The goal, of course, is t
Define the properties operating systems: Batch :- Jobs with similar needs are batched together and run through the computer as a group by an operator or automatic job sequenc
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