If the processor is trying to write a word to a certain memory location, and the system uses a write-back style architecture, what happens in case of a miss? I'm assuming that the system would first load the cache line, update the specific word, and keep the cache line in the cache until it has to be replaced. Then it would commence the write-back operation upon removal.So, the penalty for a missed write-back is actually a cache line read, correct?
Miss penalty for Write request in a Write-Back style system
computer architecture;cpu cache