which memory management scheme best.paging or segmentation

Posted by Srinuaprdc under Interview Questions on 9/15/2012 | Points: 10 | Views : 2280 | Status : [Member] | Replies : 1
which memory management scheme best?
paging or segmentation.justify ur answer




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Posted by: Vikash on: 9/15/2012 [Member] Starter | Points: 25

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Paging is best. Because

Features bor both

No external fragmentation
Possible internal fragmentation
The physical memory used by a process is no longer contiguous
The logical memory of a process is still contiguous
The logical and physical addresses are separated

Segmentation

memory protection added to segment table like paging
sharing of memory

Drawback

Paging
Implementation must be done in hardware for efficiency

Segmentation

allocation algorithms as for memory partitions
external fragmentation, back to compaction problem...

Paging(more advantage less drawback)>Segmentation.



Regards,
Vikash Pathak

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