In many computers the cache block size is in the range of 32 to 128 bytes .What would be the main advantage and disadvantage of making the size of cache blocks larger or smaller?
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Explanation:
- A 'larger block size of cache' could increase the 'hit rate' when 'adjacent memory locations' are accessed, i.e. 'good for the spatial locality'. Increase 'cache size' will help 'eradicate conflict' (collision) in multiple 'memory locations' mapped to the same 'cache location'.
- A 'larger size block' increases the 'size of the cache', thereby increasing cost. On the other side, a 'large size block size' adds the opportunity of fragmentation and false sharing in a 'multiprocessor system'.
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