Write-back policy is important for performance of cache memory because it allows data to be written only to the cache initially. 12 The modified data is written to the main memory at a later time, either when the cache block is evicted or at specific intervals. 1
This can significantly improve performance, as multiple writes can be batched together, reducing the number of write operations to the storage. 2
Некоторые другие преимущества write-back policy: