Section 12.9
Review Questions
Fragmentation
What is a
hole
in memory? How do they form?
What do some systems do when there are too many holes in memory and not enough memory to run jobs?
What is the difference between
external fragmentation
and
internal fragmentation
?
What kind of fragmentation can occur in paged memory systems that does not occur in the CDC-style systems?
What would increasing the page (frame) size do to fragmentation in a virtual memory system? (increase or decrease it)
Why wouldn't computer designers opt for smaller pages when they know they can minimize fragmentation this way?