What is “Coalescing”?
Coalescing involves the use of memory address mapping to make memory contiguous, it means that all free
memory area are coalesced, compacted, or re-compacted in some cases into one contiguous free area. It is
also referred to as “burping the memory”. From the diagram above, the three free memory fragments created
by jobs1, 2, and 3 will actually sum up to be enough for allocation to a new incoming job but since they are
separated, it will be impossible to do that.
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