Question: Which of the below kernel functions can be used for reuse of memory in heap management?
Answer:
The kernel maintains a free list to keep information about free memory area in the system.A memory request is satisfied by using the free memory area that is considered the most suitable for the request,and the memory left over from this memory area is entered in the free list.The kernel tries to merge free areas of memory into larger free area so that larger memory request can be granted.
MCQ: Which of the below kernel functions can be used for reuse of memory in heap management?
Explanation:
The kernel maintains a free list to keep information about free memory area in the system.A memory request is satisfied by using the free memory area that is considered the most suitable for the request,and the memory left over from this memory area is entered in the free list.The kernel tries to merge free areas of memory into larger free area so that larger memory request can be granted.
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Related Questions
- 1. which of the following control information the kernel needs to maintains for each memory area in the free list;
- 2. Which of the following free lists is used to facilitate faster insertion and deletion operations on memory area while managing the free lists.
- 3. Which of the following techniques can be used to perform memory allocation by using a free list;
- 4. To service a request for n bytes of memory,the _____ technique uses the first free memory area it can find whose size is ≥ n bytes.
- 5. The ____ technique uses the smallest free memory area with size ≥ n bytes.
- 6. The _____ technique remembers which entry in the free list was used to make the last allocation.to make new allocation,it searches the free list starting from the next entry and perform allocation using first free memory area whose size ≥ n bytes that it can find.
- 7. ________ technique may split memory area at the start of the free list repeatedly,so free memory area become smaller with time.
- 8. ________ technique avoids needless splitting of large memory area.
- 9. ________ technique incurs higher allocation overhead
- 10. ________ technique avoids splitting the same free area repeatedly also avoids allocation overhead.
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