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The method of mapping the consecutive memory blocks to consecutive cache blocks is called ______
- a)Set associative
- b)Associative
- c)Direct
- d)Indirect
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
The method of mapping the consecutive memory blocks to consecutive cac...
The correct answer is Option C
Explanation: This method is most simple to implement as it involves direct mapping of memory blocks.
Explanation: This method is most simple to implement as it involves direct mapping of memory blocks.
Here are the details of Direct Mapping:
- Direct mapping is a procedure used to assign each memory block in the main memory to a particular line in the cache.
- If a line is already filled with a memory block and a new block needs to be loaded, then the old block is discarded from the cache.
The figure shows how multiple blocks from the example are mapped to each line in the cache.
- Just like locating a word within a block, bits are taken from the main memory address to uniquely describe the line in the cache where a block can be stored.
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The method of mapping the consecutive memory blocks to consecutive cac...
Direct Mapping in Cache Memory
Direct mapping is a technique used in cache memory where each block of main memory is mapped to only one specific cache block. In this method, the memory address is divided into three parts - tag, index, and offset. The index is used to locate the cache block while the tag is used to verify whether the data in the cache block is the same as that in the main memory block.
Mapping Consecutive Memory Blocks to Consecutive Cache Blocks
In direct mapping, the consecutive memory blocks are mapped to consecutive cache blocks. For example, if the cache size is 4 blocks and the main memory has 16 blocks, then the first memory block will be mapped to the first cache block, the second memory block will be mapped to the second cache block, and so on.
Advantages and Disadvantages
Advantages of direct mapping include simplicity, low hardware complexity, and faster access time compared to other mapping techniques. However, it has some limitations such as high miss rate and poor utilization of cache memory due to conflicts that occur when multiple memory blocks map to the same cache block.
Conclusion
In summary, the method of mapping consecutive memory blocks to consecutive cache blocks is called direct mapping. It is a simple and fast technique but has some limitations in terms of cache utilization and miss rate.
Direct mapping is a technique used in cache memory where each block of main memory is mapped to only one specific cache block. In this method, the memory address is divided into three parts - tag, index, and offset. The index is used to locate the cache block while the tag is used to verify whether the data in the cache block is the same as that in the main memory block.
Mapping Consecutive Memory Blocks to Consecutive Cache Blocks
In direct mapping, the consecutive memory blocks are mapped to consecutive cache blocks. For example, if the cache size is 4 blocks and the main memory has 16 blocks, then the first memory block will be mapped to the first cache block, the second memory block will be mapped to the second cache block, and so on.
Advantages and Disadvantages
Advantages of direct mapping include simplicity, low hardware complexity, and faster access time compared to other mapping techniques. However, it has some limitations such as high miss rate and poor utilization of cache memory due to conflicts that occur when multiple memory blocks map to the same cache block.
Conclusion
In summary, the method of mapping consecutive memory blocks to consecutive cache blocks is called direct mapping. It is a simple and fast technique but has some limitations in terms of cache utilization and miss rate.
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The method of mapping the consecutive memory blocks to consecutive cache blocks is called ______a)Set associativeb)Associativec)Directd)IndirectCorrect answer is option 'C'. Can you explain this answer?
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