This diagram shows an example of memory configuration under dynamic partitioning, after a number of placement and swapping-out operations have been carried out.
Addresses go from left to right; gray areas indicate blocks occupied by processes; white areas indicate free memory blocks. The last process placed is 2-Mbyte and is marked with an X. Only one process was swapped out after that.
a. What was the maximum size of the swapped-out process?
b. What was the size of the free block just before it was partitioned by X?
c. A new 3-Mbyte allocation request must be satisfied next. Indicate the intervals of memory where a partition will be created for the new process under the following four placement algorithms: best-fit, first-fit, next-fit, and worst-fit. For each algorithm, draw a horizontal segment under the memory strip and label it clearly.

  • CreatedMay 09, 2015
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